Mars Observation Feb 5, 2010 UT

Mars Feb 05, 2010 UT 0:15 – 1:00 UT
CM : 349.8 – 1.0
Instrument: 9.5-inch (241.3-mm) f/15 A. Clark Refractor
Magnification: 172x and 241x
Filters: Blue W80 and Yellow W15
Seeing: 6-7
Transparency (SAC): 4

The first views of 2010 opposition of Mars with the 9.5 inch f/15 A. Clark Refractor

My main objective of the night was imaging various Messier Objects with the RC-20, a project of one of the Astronomy Class students. A thin layer of clouds turned the sky to grayish color. Only the brighter stars of Orion and stars of the other constellations made their way through the clouds. No chance getting acceptable photos of galaxies and planetary nebula on the schedule tonight.

However this made Mars a prime visual observing target with the Clark Refractor. Having missed out looking at the planet with telescopes because of the long periods of overcast skies and single digit temps, this would be a chance to get a look at the planet. Even with the small halo around the planet, seeing conditions were over all very good. Better views as the planet climbed higher.

By the time I arrived most of the 15 or so Astronomy Class students had already taken a look through the eyepiece. When it was my turn at the eyepiece the view was not good at all, slightly out of focus and over magnified for the seeing conditions at the time. A 21mm plossel improved the view considerably. The seeing settled down and the edges of the planet were sharp. The right angle diagonal was removed, so I could view it straight through the scope. I prefer this setup over the other.

The NPC stood out as a very bright white easy target, bordered by a darker collar surface. Above the NPC and rotating into view Mare Acidalium was an easy dusty region. Further south a bright white feature hugging the limb. Half the size of the NPC it was the second brightest feature seen tonight. I have never seen a bright marking as this before close to the equatorial region of Mars, I assumed it to be a very bright morning cloud on the limb. It was surprising easy to see without the use of a filter. It was slightly brighter when viewed with blue and green filters. Near the CM, Sinus Sabaeus stretch across the southern hemisphere of Mars. Rotating out of view was Syrtis Major, marked only as a darker feature close to the limb. Seeing was acceptable when the magnification was increased with a 15 mm Panoptic eyepiece. Steady views more that unstable conditions. More of Sinus Sabawus was seen and the bright white clouds on the limb still an easy target.

Overall I was very pleased with tonight’s first long awaited view of the 2010 opposition of Mars. The students enjoyed the view also their second time around.

This web site has a photo closely matches the eyepiece view.

http://astrosurf.com/prostjp/Galerie%20Photos/Mars/M20100204-00h21UT-JPr.jpg

Mars Resources for 2010
January 18, 2010

These are some web sites and software programs that and observer of the planet Mars should find useful when observing or imaging the planet.
A detail Guide to the planet’s appearance written by Jeffrey Beish for the yearr 2010 is found here :
http://www.alpo-astronomy.org/jbeish/

Identfing and viewing features of Mars can be a difficult task, using simple software can help you determine what is visible from your location. I use these often to confirm what I have seen.
The oldest is Mars Previewer II, which can be downloaded from Sky and Telescope web site amoung other places, and placed on your PC.

Mars Previewer, a direct link to the program. http://www.skyandtelescope.com/resources/software/3304921.html?c=y&page=2

Mars Profiler
The new JavaScript program on Sky and Telescope web site is also useful.
http://www.skyandtelescope.com/observing/objects/javascript/mars

The software WIMP, Windows International Mars Patrol, software written a number of year back and update over the years covers more tha Mars. It includes all of the major planets, our Moon and the Sun. Not heavy on graphics, but loaded with observing data.

These will be highlighted at February meeting.

John D Sabia

November Observing

Sources for Comets on the Internet

The recent error of positional ephemeredes and magnitude of comet C/2008 O2 on the popular Heavens-Above web site caught a number of observers looking for a bright telescope comet in the sky. I first heard of this from local club members whose attempts to view C/2008 O2 with various scopes, GOTO’s included, with disappointing results. Later on I read of similar accounts on Cloudy Nights Forum.

Since I am known to search for those dim members of the solar system that yield a non-impressive sight in the eyepiece, I was surprised to hear about a bright telescopic comet in the early evening sky. I follow the latest info of comets visible in the sky and was confused at to what I may have missed. The Internet web sources I use to follow position and magnitudes of comets did not list C/2008 O2 as a bright telescopic comet in the position of the sky that the Heavens-Above web site.

Tony Cook, a comet observer and photographer, posted a short list of good sources for comet observing web sites on the Cloudy Nights Forum. For the benefit of all who looked for C/2008 O2 I list here the sources I use on the Internet to aid with observing comets.

A quick simple look at current comets and magnitude are found on these two sites:

BAA Comet Section at http://www.ast.cam.ac.uk/~jds/

German Amateur Observers Society Comet Section at http://kometen.fg-vds.de/fgk_hpe.htm

For site that include Charts:

SkyHound’s Comet Chasing at http://cometchasing.skyhound.com/

Charts with star magnitudes at http://www.shopplaza.nl/astro/

And this web site with observation, analysis, charts, and weeky trends of current comets:

Seiichi Yoshida of Japan comets pages at http://www.aerith.net/comet/weekly/current.html

This site contains a great deal of historical data and useful information a links.

Gray Kronk’s comets web site at http://cometography.com/

The International Comet Quarterly (ICQ) has many pages with information on comet observing.

Dan Green Harvard Observatory at http://www.cfa.harvard.edu/icq/CometMags.html

All of the above sites are useful when planning to view comets in the sky. Happy Hunting.

Observing Jupiter

Jupiter is still in good viewing position in the early evening sky. I find that observing the planet during twilight may better that later in the night. My local seeing conditions are sometimes better shortly after twilight than later. One feature to keep an eye on is the possibility of that the SEB preceding the GRS many be fading in color. Christopher Pellier noted this in photos on the Jupiter Yahoo Group page. If the belt does fade, as it has done so in the past, then the GRS will stand out against a white background region. This will take a while to develop along the length of the belt, and my not occur until the next apparition of Jupiter in our skies. But for now there are a number of dark barges that follow the GRS in the SEB. Opposite the GRS on the other side of the planet the dark spot in the STRZ is still observable.

Here is the list of observing times of these features.

 2009 / 11 / 1  U.T. DATE , CM AT  0:00 U.T SYS I= 2.11 SYS II= 295.66

The GRS Spot (SYS II = 138)  transits at   5:34 U.T.
The GRS Spot (SYS II = 138)  transits at  15:30 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:45 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:40 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:36 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  9:38 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 19:33 U.T.

 2009 / 11 / 2  U.T. DATE , CM AT  0:00 U.T SYS I= 159.96 SYS II= 85.43

The GRS Spot (SYS II = 138)  transits at   1:26 U.T.
The GRS Spot (SYS II = 138)  transits at  11:22 U.T.
The GRS Spot (SYS II = 138)  transits at  21:18 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:33 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:28 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  5:30 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 15:25 U.T.

 2009 / 11 / 3  U.T. DATE , CM AT  0:00 U.T SYS I= 317.46 SYS II= 235.55

The GRS Spot (SYS II = 138)  transits at   7:14 U.T.
The GRS Spot (SYS II = 138)  transits at  17: 9 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:24 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:20 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22:16 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  1:21 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 11:17 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 21:13 U.T.

 2009 / 11 / 4  U.T. DATE , CM AT  0:00 U.T SYS I= 115.31 SYS II= 25.66

The GRS Spot (SYS II = 138)  transits at   3: 5 U.T.
The GRS Spot (SYS II = 138)  transits at  13: 1 U.T.
The GRS Spot (SYS II = 138)  transits at  22:57 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:11 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18: 7 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  7: 9 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 17: 4 U.T.

 2009 / 11 / 5  U.T. DATE , CM AT  0:00 U.T SYS I= 273.16 SYS II= 176.13

The GRS Spot (SYS II = 138)  transits at   8:52 U.T.
The GRS Spot (SYS II = 138)  transits at  18:48 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4: 3 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13:58 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23:54 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  3: 0 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 12:55 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 22:51 U.T.

 2009 / 11 / 6  U.T. DATE , CM AT  0:00 U.T SYS I= 71.02 SYS II= 325.9

The GRS Spot (SYS II = 138)  transits at   4:44 U.T.
The GRS Spot (SYS II = 138)  transits at  14:40 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9:50 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19:46 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  8:48 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 18:43 U.T.

 2009 / 11 / 7  U.T. DATE , CM AT  0:00 U.T SYS I= 228.52 SYS II= 116.02

The GRS Spot (SYS II = 138)  transits at   0:36 U.T.
The GRS Spot (SYS II = 138)  transits at  10:32 U.T.
The GRS Spot (SYS II = 138)  transits at  20:27 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  5:42 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 15:38 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  4:39 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 14:35 U.T.

 2009 / 11 / 8  U.T. DATE , CM AT  0:00 U.T SYS I= 26.37 SYS II= 266.13

The GRS Spot (SYS II = 138)  transits at   6:23 U.T.
The GRS Spot (SYS II = 138)  transits at  16:19 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1:34 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11:29 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21:25 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  0:31 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 10:26 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 20:22 U.T.

 2009 / 11 / 9  U.T. DATE , CM AT  0:00 U.T SYS I= 184.22 SYS II= 56.6

The GRS Spot (SYS II = 138)  transits at   2:14 U.T.
The GRS Spot (SYS II = 138)  transits at  12:10 U.T.
The GRS Spot (SYS II = 138)  transits at  22: 6 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7:20 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 17:16 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  6:17 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 16:13 U.T.

 2009 / 11 / 10  U.T. DATE , CM AT  0:00 U.T SYS I= 341.72 SYS II= 206.37

The GRS Spot (SYS II = 138)  transits at   8: 2 U.T.
The GRS Spot (SYS II = 138)  transits at  17:58 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3:12 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13: 8 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23: 4 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  2:10 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 12: 5 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 22: 1 U.T.

 2009 / 11 / 11  U.T. DATE , CM AT  0:00 U.T SYS I= 139.57 SYS II= 356.48

The GRS Spot (SYS II = 138)  transits at   3:54 U.T.
The GRS Spot (SYS II = 138)  transits at  13:49 U.T.
The GRS Spot (SYS II = 138)  transits at  23:45 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9: 0 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:55 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  7:57 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 17:53 U.T.

 2009 / 11 / 12  U.T. DATE , CM AT  0:00 U.T SYS I= 297.42 SYS II= 146.6

The GRS Spot (SYS II = 138)  transits at   9:41 U.T.
The GRS Spot (SYS II = 138)  transits at  19:37 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:51 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:47 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  3:49 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 13:44 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 23:40 U.T.

 2009 / 11 / 13  U.T. DATE , CM AT  0:00 U.T SYS I= 94.92 SYS II= 296.72

The GRS Spot (SYS II = 138)  transits at   5:33 U.T.
The GRS Spot (SYS II = 138)  transits at  15:28 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:43 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:39 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:34 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  9:36 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 19:31 U.T.

 2009 / 11 / 14  U.T. DATE , CM AT  0:00 U.T SYS I= 252.77 SYS II= 86.84

The GRS Spot (SYS II = 138)  transits at   1:24 U.T.
The GRS Spot (SYS II = 138)  transits at  11:20 U.T.
The GRS Spot (SYS II = 138)  transits at  21:16 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:30 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:26 U.T.

The Dark Spot (SYS II = 285) in STRz transits at  5:27 U.T.
The Dark Spot (SYS II = 285) in STRz transits at 15:23 U.T.

Photo of the STRZ Spot

 By chance a fellow ALPO Jupter observer, Geoff Chester, managed to image Jupiter with the 12 inch A. Clark Refractor from Washington, DC on the same night I was observing from TGC Observatory. It clearly shows the spot in the STRZ and the section of the belt before transiting the merdian. 

 In the image the spot is considerable larger, possible due to stacking processing and seeing effects. I did not see any of the three white ovals while observing, which just goes to show the ablity of imaging and processing vs. the visual ablity of the observer. Perhaps if I was more on my game or took the time to sketch I may have seen one of those spots.

The photo cam ne found  here:

http://www.arksky.org/alpo/alpoimg/Jup1270AC26.jpg

Transit of a STRZ Spot

October 20, 2009

October 19, 2009  

 I detected a small dark spot in the STRZ.  Seeing conditions were very good  and steady,  a 8 on the scale used by the ALPO.  Since  the STRZ and the STZ is mostly a white swatch, this small dark spot stood out plainly.  Not sure how long it will be around to see,  so I created this list of possible viewing times.  The longitude used was obtained from the CM crossing I times last night.

 

 2009 / 10 / 20  U.T. DATE , CM AT  0:00 U.T SYS I= 268.59 SYS II= 293.55

The Dark Spot (SYS II = 285) in STRz transits at   9:42 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  19:38 U.T.

 2009 / 10 / 21  U.T. DATE , CM AT  0:00 U.T SYS I= 66.45 SYS II= 83.67

The Dark Spot (SYS II = 285) in STRz transits at   5:34 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  15:30 U.T.

 2009 / 10 / 22  U.T. DATE , CM AT  0:00 U.T SYS I= 224.65 SYS II= 234.14

The Dark Spot (SYS II = 285) in STRz transits at   1:25 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  11:21 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  21:16 U.T.

 2009 / 10 / 23  U.T. DATE , CM AT  0:00 U.T SYS I= 22.15 SYS II= 24.26

The Dark Spot (SYS II = 285) in STRz transits at   7:12 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  17: 8 U.T.

 2009 / 10 / 24  U.T. DATE , CM AT  0:00 U.T SYS I= 180 SYS II= 174.38

The Dark Spot (SYS II = 285) in STRz transits at   3: 4 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  13: 0 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  22:55 U.T.

 2009 / 10 / 25  U.T. DATE , CM AT  0:00 U.T SYS I= 337.85 SYS II= 324.14

The Dark Spot (SYS II = 285) in STRz transits at   8:52 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  18:47 U.T.

 2009 / 10 / 26  U.T. DATE , CM AT  0:00 U.T SYS I= 135.35 SYS II= 114.61

The Dark Spot (SYS II = 285) in STRz transits at   4:43 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  14:38 U.T.

 2009 / 10 / 27  U.T. DATE , CM AT  0:00 U.T SYS I= 293.2 SYS II= 264.73

The Dark Spot (SYS II = 285) in STRz transits at   0:34 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  10:30 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  20:26 U.T.

 2009 / 10 / 28  U.T. DATE , CM AT  0:00 U.T SYS I= 91.05 SYS II= 54.84

The Dark Spot (SYS II = 285) in STRz transits at   6:22 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  16:17 U.T.

 2009 / 10 / 29  U.T. DATE , CM AT  0:00 U.T SYS I= 248.91 SYS II= 204.96

The Dark Spot (SYS II = 285) in STRz transits at   2:13 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  12: 9 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  22: 5 U.T.

 2009 / 10 / 30  U.T. DATE , CM AT  0:00 U.T SYS I= 46.41 SYS II= 355.08

The Dark Spot (SYS II = 285) in STRz transits at   8: 1 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  17:56 U.T.

 2009 / 10 / 31  U.T. DATE , CM AT  0:00 U.T SYS I= 204.26 SYS II= 145.2

The Dark Spot (SYS II = 285) in STRz transits at   3:52 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  13:48 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  23:43 U.T.

 2009 / 11 / 1  U.T. DATE , CM AT  0:00 U.T SYS I= 2.11 SYS II= 295.66

The Dark Spot (SYS II = 285) in STRz transits at   9:39 U.T.
The Dark Spot (SYS II = 285) in STRz transits at  19:35 U.T.

Jupiter’s Moons Mutual Events

October 18, 2009

 In addition to the regular passage of  the Galilian Moons in front of Jupter and into Jupiter’s shadow, the mooms will be passing in front of each other and casting their shadow onto the other moons.  Most of the time they will be partial eclipse, where only a fractor of the shadow falls on another moon. Same for the occultations.  They will challenge your observing skills, espescially when seeing conditions are poor.  Have a try at it anyway, you my be surprised by what can be seen.

All times EDT.
Oct 21, 2009  7:11 – 7:17  EDT Ganymede occults Io
Oct 23, 2009  8:31 – 8:17  EDT Ganymede occults Europa
Oct 24, 2009  9:19 – 9:24  EDT Io occults Europa
Oct 29, 2009 10:03 – 10:09 EDT Ganymede occults Io
Oct 30, 2009 11:54 – 12:02 EDT Ganymede occults Europa

Jupiter Events in October

October 6, 2009

At this time Jupiter is the brightest object in that dominates the southern horizon sky. I’ve updated the list of cloud features transits times, droping the Wesley Impact Scar and adding a darg reddish barg that follows in the wake of the GRS. I was able to measure the central merdian crossing of this barge on night of steady seeing.  On  September 25, 2009 UT while uing the RC-20 at 158X the bar was timed that resulted in a L2 longitude of 157 degrees.
2009 / 10 / 18  U.T. DATE , CM AT  0:00 U.T SYS I= 312.89 SYS II= 353.32

The GRS Spot (SYS II = 138)  transits at   3:59 U.T.
The GRS Spot (SYS II = 138)  transits at  13:55 U.T.
The GRS Spot (SYS II = 138)  transits at  23:50 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9: 5 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19: 1 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  4:30 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 14:26 U.T.

2009 / 10 / 19  U.T. DATE , CM AT  0:00 U.T SYS I= 111.09 SYS II= 143.09

The GRS Spot (SYS II = 138)  transits at   9:47 U.T.
The GRS Spot (SYS II = 138)  transits at  19:42 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:57 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:53 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  0:23 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 10:18 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 20:14 U.T.

2009 / 10 / 20  U.T. DATE , CM AT  0:00 U.T SYS I= 268.59 SYS II= 293.55

The GRS Spot (SYS II = 138)  transits at   5:38 U.T.
The GRS Spot (SYS II = 138)  transits at  15:33 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:48 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:44 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:40 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  6: 9 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 16: 5 U.T.

2009 / 10 / 21  U.T. DATE , CM AT  0:00 U.T SYS I= 66.45 SYS II= 83.67

The GRS Spot (SYS II = 138)  transits at   1:29 U.T.
The GRS Spot (SYS II = 138)  transits at  11:25 U.T.
The GRS Spot (SYS II = 138)  transits at  21:21 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:36 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:31 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  2: 1 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 11:57 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 21:52 U.T.

2009 / 10 / 22  U.T. DATE , CM AT  0:00 U.T SYS I= 224.65 SYS II= 234.14

The GRS Spot (SYS II = 138)  transits at   7:16 U.T.
The GRS Spot (SYS II = 138)  transits at  17:12 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:27 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:22 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22:18 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  7:48 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 17:43 U.T.

2009 / 10 / 23  U.T. DATE , CM AT  0:00 U.T SYS I= 22.15 SYS II= 24.26

The GRS Spot (SYS II = 138)  transits at   3: 8 U.T.
The GRS Spot (SYS II = 138)  transits at  13: 3 U.T.
The GRS Spot (SYS II = 138)  transits at  22:59 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:14 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18: 9 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  3:39 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 13:35 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 23:30 U.T.

2009 / 10 / 24  U.T. DATE , CM AT  0:00 U.T SYS I= 180 SYS II= 174.38

The GRS Spot (SYS II = 138)  transits at   8:55 U.T.
The GRS Spot (SYS II = 138)  transits at  18:51 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4: 5 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14: 1 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23:57 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  9:26 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 19:22 U.T.

2009 / 10 / 25  U.T. DATE , CM AT  0:00 U.T SYS I= 337.85 SYS II= 324.14

The GRS Spot (SYS II = 138)  transits at   4:47 U.T.
The GRS Spot (SYS II = 138)  transits at  14:43 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9:53 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19:49 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  5:19 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 15:14 U.T.

2009 / 10 / 26  U.T. DATE , CM AT  0:00 U.T SYS I= 135.35 SYS II= 114.61

The GRS Spot (SYS II = 138)  transits at   0:38 U.T.
The GRS Spot (SYS II = 138)  transits at  10:34 U.T.
The GRS Spot (SYS II = 138)  transits at  20:30 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  5:44 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 15:40 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  1:10 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 11: 5 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 21: 1 U.T.

2009 / 10 / 27  U.T. DATE , CM AT  0:00 U.T SYS I= 293.2 SYS II= 264.73

The GRS Spot (SYS II = 138)  transits at   6:25 U.T.
The GRS Spot (SYS II = 138)  transits at  16:21 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1:36 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11:32 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21:27 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  6:57 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 16:53 U.T.

2009 / 10 / 28  U.T. DATE , CM AT  0:00 U.T SYS I= 91.05 SYS II= 54.84

The GRS Spot (SYS II = 138)  transits at   2:17 U.T.
The GRS Spot (SYS II = 138)  transits at  12:13 U.T.
The GRS Spot (SYS II = 138)  transits at  22: 8 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7:23 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 17:19 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  2:49 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 12:44 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 22:40 U.T.

2009 / 10 / 29  U.T. DATE , CM AT  0:00 U.T SYS I= 248.91 SYS II= 204.96

The GRS Spot (SYS II = 138)  transits at   8: 4 U.T.
The GRS Spot (SYS II = 138)  transits at  18: 0 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3:15 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13:10 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23: 6 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  8:36 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 18:31 U.T.

2009 / 10 / 30  U.T. DATE , CM AT  0:00 U.T SYS I= 46.41 SYS II= 355.08

The GRS Spot (SYS II = 138)  transits at   3:56 U.T.
The GRS Spot (SYS II = 138)  transits at  13:52 U.T.
The GRS Spot (SYS II = 138)  transits at  23:47 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9: 2 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:58 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  4:27 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 14:23 U.T.

2009 / 10 / 31  U.T. DATE , CM AT  0:00 U.T SYS I= 204.26 SYS II= 145.2

The GRS Spot (SYS II = 138)  transits at   9:43 U.T.
The GRS Spot (SYS II = 138)  transits at  19:39 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:54 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:49 U.T.

The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at  0:19 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 10:15 U.T.
The Dark Barge Folowing GRS  (SYS II = 157) in SEBs transits at 20:10 U.T.

Observing Notes by John Sabia

 
JUPITER
 
Sept 5, 2009
In the last three week the local weather conditions have been more favorable for Lunar and Planetary seeing conditions. After a long period of dismal cloudy weather I have been able to view and image Jupiter. With my latest image from August, 26, 2009 UT and the WinJUPOS program I have refined the longitude of the white Oval in the SSTBs edge, just intruding in the SSTZ.. Another change is the longitude of the GRS to SYS II 138, as reported by the Jupiter Section of the ALPO.This is the last time the Wesley Impact will appear in my list it is becoming difficult to view. Although the Oval BA postion is listed, the longitude of 323 it is an very old measurement. I have not had a chance to confirm it’s present longitudal position.

 

Don’t forget to look for the Mutual Occultations and Eclipse of Jupiter’s Moon. During September 2009 there are a number of days when they will be visible locally.

Finally if you are up early in the morning take a gander at the Waning crescent moon passing by Mars and Venus September 13- 18, 2009, some beautiful pairings in the morning sky.
 2009 / 9 / 5  U.T. DATE , CM AT  0:00 U.T SYS I= 3.52 SYS II= 11.6

The GRS Spot (SYS II = 138)  transits at   3:29 U.T.
The GRS Spot (SYS II = 138)  transits at  13:24 U.T.
The GRS Spot (SYS II = 138)  transits at  23:20 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:35 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:30 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5:38 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15:33 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   0:28 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  10:24 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  20:20 U.T.

 2009 / 9 / 6  U.T. DATE , CM AT  0:00 U.T SYS I= 161.72 SYS II= 162.07

The GRS Spot (SYS II = 138)  transits at   9:15 U.T.
The GRS Spot (SYS II = 138)  transits at  19:11 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:26 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:21 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1:29 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11:24 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 21:20 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   6:15 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  16:11 U.T.

 2009 / 9 / 7  U.T. DATE , CM AT  0:00 U.T SYS I= 319.57 SYS II= 312.19

The GRS Spot (SYS II = 138)  transits at   5: 7 U.T.
The GRS Spot (SYS II = 138)  transits at  15: 3 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:17 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:13 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20: 9 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  7:16 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 17:12 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   2: 7 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  12: 2 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  21:58 U.T.

 2009 / 9 / 8  U.T. DATE , CM AT  0:00 U.T SYS I= 117.42 SYS II= 102.66

The GRS Spot (SYS II = 138)  transits at   0:58 U.T.
The GRS Spot (SYS II = 138)  transits at  10:54 U.T.
The GRS Spot (SYS II = 138)  transits at  20:49 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6: 4 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16: 0 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  3: 7 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 13: 3 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 22:58 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   7:53 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  17:49 U.T.

 2009 / 9 / 9  U.T. DATE , CM AT  0:00 U.T SYS I= 275.63 SYS II= 253.13

The GRS Spot (SYS II = 138)  transits at   6:45 U.T.
The GRS Spot (SYS II = 138)  transits at  16:40 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1:55 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11:51 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21:46 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  8:54 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 18:49 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   3:44 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  13:40 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  23:36 U.T.

 2009 / 9 / 10  U.T. DATE , CM AT  0:00 U.T SYS I= 73.13 SYS II= 43.24

The GRS Spot (SYS II = 138)  transits at   2:36 U.T.
The GRS Spot (SYS II = 138)  transits at  12:32 U.T.
The GRS Spot (SYS II = 138)  transits at  22:28 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7:42 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 17:38 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  4:45 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 14:41 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   9:32 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  19:27 U.T.

 2009 / 9 / 11  U.T. DATE , CM AT  0:00 U.T SYS I= 231.33 SYS II= 193.71

The GRS Spot (SYS II = 138)  transits at   8:23 U.T.
The GRS Spot (SYS II = 138)  transits at  18:19 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3:33 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13:29 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23:25 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  0:36 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 10:32 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 20:28 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   5:23 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  15:18 U.T.

 2009 / 9 / 12  U.T. DATE , CM AT  0:00 U.T SYS I= 29.18 SYS II= 343.83

The GRS Spot (SYS II = 138)  transits at   4:15 U.T.
The GRS Spot (SYS II = 138)  transits at  14:10 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9:21 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19:16 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  6:24 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 16:19 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   1:14 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  11:10 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  21: 6 U.T.

 2009 / 9 / 13  U.T. DATE , CM AT  0:00 U.T SYS I= 187.38 SYS II= 134.65

The GRS Spot (SYS II = 138)  transits at   0: 5 U.T.
The GRS Spot (SYS II = 138)  transits at  10: 1 U.T.
The GRS Spot (SYS II = 138)  transits at  19:56 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  5:11 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 15: 7 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  2:14 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 12:10 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 22: 5 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   7: 0 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  16:56 U.T.

 2009 / 9 / 14  U.T. DATE , CM AT  0:00 U.T SYS I= 345.23 SYS II= 284.77

The GRS Spot (SYS II = 138)  transits at   5:52 U.T.
The GRS Spot (SYS II = 138)  transits at  15:48 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1: 3 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:58 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:54 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  8: 1 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 17:57 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   2:52 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  12:48 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  22:43 U.T.

 2009 / 9 / 15  U.T. DATE , CM AT  0:00 U.T SYS I= 143.09 SYS II= 74.88

The GRS Spot (SYS II = 138)  transits at   1:44 U.T.
The GRS Spot (SYS II = 138)  transits at  11:40 U.T.
The GRS Spot (SYS II = 138)  transits at  21:35 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:50 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:46 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  3:53 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 13:49 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 23:44 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   8:39 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  18:35 U.T.

 2009 / 9 / 16  U.T. DATE , CM AT  0:00 U.T SYS I= 301.29 SYS II= 225.35

The GRS Spot (SYS II = 138)  transits at   7:31 U.T.
The GRS Spot (SYS II = 138)  transits at  17:26 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:41 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:37 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22:32 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  9:40 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 19:35 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   4:30 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  14:26 U.T.

 2009 / 9 / 17  U.T. DATE , CM AT  0:00 U.T SYS I= 99.14 SYS II= 15.82

The GRS Spot (SYS II = 138)  transits at   3:22 U.T.
The GRS Spot (SYS II = 138)  transits at  13:17 U.T.
The GRS Spot (SYS II = 138)  transits at  23:13 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:28 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:23 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5:31 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15:26 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   0:21 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  10:17 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  20:13 U.T.

 2009 / 9 / 18  U.T. DATE , CM AT  0:00 U.T SYS I= 256.99 SYS II= 165.94

The GRS Spot (SYS II = 138)  transits at   9: 9 U.T.
The GRS Spot (SYS II = 138)  transits at  19: 5 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:19 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:15 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1:22 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11:18 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 21:14 U.T.

The White Oval (SYS II = 29) in SSTZ / SSTB transits at   6: 9 U.T.
The White Oval (SYS II = 29) in SSTZ / SSTB transits at  16: 4 U.T.

  
August 21, 2009

 

The Wesley Impact Scar
It has been a month since a small solar system body collided into Jupiter’s South Polar Region, SPR, and created the dark mark discovered by Anthony Wesley. Since then Wesley Impact Scar, as it has become to be referred to, has change in size and visual appearance. Beginning as a dark black patch in the SPR has gradually spread out into a long streak by the winds in the atmosphere of Jupiter. In doing the dark intensity of the debris has decreased enough to make visual sighting difficult. Most trained observer of the planet are able to spot it, those new to the visual appearance of the cloud features of Jupiter have a hard task seeing the remnants of the impact scar. My own observations found it difficult until it was near the central meridian. Nonetheless imagers of the planet continue to capture with little difficulty. There are many fine examples in the ALPO Jupiter web site newsletter, http://mysite.verizon.net/macdouc/alpo/jovenews.htm and much more in the Jupiter Yahoo Group.

The central meridian transit of the Wesley Impact Scar and other features of Jupiter are following this note.

The Dance of the Moons of Jupiter

 Regular observers of Jupiter are familiar with the transits of Io, Europa, Ganymede and Callisto across the face of Jupiter. Watching those dark circular shadows cast onto the atmosphere make their way across the face of the planet is an impressive sight to see. The view of a moon as it begins or ends a transit is an even more remarkable sight to see. Before the moon moves from the edge of Jupiter’s disk to the background of the sky the outline of the moon’s disk is clearly visible. Watching one of the moons pass into the shadow of Jupiter and slowly diminish in brightness before disappearing is also thrilling to witness.

 

This year and the next you can look for line of sight interactions of one moon and another. These are known as the mutual events between the moons that occur every six years as the equator of Jupiter is situated on the orbital plane of its 12-year path around the Sun. Two types of events can be observed; an occultation is the easier one to see. These are more than just close passages of one moon to another. During an occultation one moon will pass in front of another from our line of sight. A pass can range from partials when only a small portion of one moon occults the other, to a total were they seem to merge as one. Eclipses are possible too, when one moon enters the shadow of another. They also range from partial eclipses to total eclipse. Keeping track of the time of the event is important. You want to start at least 30 minutes before any event.

Listings of these mutual events can be found at the U.S. Naval Observatory web site

http://asa.usno.navy.mil/SecF/Jupiter.html

Pierpaolo Ricci of Rovereto Italy has produced listings of these events on his web page.

http://www.pierpaoloricci.it/eventi/PHEMU2009gio_eng.htm

 

 

 2009 / 8 / 22  U.T. DATE , CM AT  0:00 U.T SYS I= 311.84 SYS II= 66.8

The GRS Spot (SYS II = 134)  transits at   1:51 U.T.
The GRS Spot (SYS II = 134)  transits at  11:46 U.T.
The GRS Spot (SYS II = 134)  transits at  21:42 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7: 3 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:59 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  4: 6 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 14: 2 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 23:58 U.T.

The White Oval (SYS II = 71) in SSTB transits at   0: 6 U.T.
The White Oval (SYS II = 71) in SSTB transits at  10: 2 U.T.
The White Oval (SYS II = 71) in SSTB transits at  19:58 U.T.

 2009 / 8 / 23  U.T. DATE , CM AT  0:00 U.T SYS I= 109.34 SYS II= 216.91

The GRS Spot (SYS II = 134)  transits at   7:38 U.T.
The GRS Spot (SYS II = 134)  transits at  17:34 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:55 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:51 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22:46 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  9:54 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 19:49 U.T.

The White Oval (SYS II = 71) in SSTB transits at   5:54 U.T.
The White Oval (SYS II = 71) in SSTB transits at  15:49 U.T.

 2009 / 8 / 24  U.T. DATE , CM AT  0:00 U.T SYS I= 267.89 SYS II= 7.38

The GRS Spot (SYS II = 134)  transits at   3:29 U.T.
The GRS Spot (SYS II = 134)  transits at  13:25 U.T.
The GRS Spot (SYS II = 134)  transits at  23:20 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:42 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:37 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5:45 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15:40 U.T.

The White Oval (SYS II = 71) in SSTB transits at   1:45 U.T.
The White Oval (SYS II = 71) in SSTB transits at  11:40 U.T.
The White Oval (SYS II = 71) in SSTB transits at  21:36 U.T.

 2009 / 8 / 25  U.T. DATE , CM AT  0:00 U.T SYS I= 65.39 SYS II= 157.85

The GRS Spot (SYS II = 134)  transits at   9:16 U.T.
The GRS Spot (SYS II = 134)  transits at  19:11 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:33 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:28 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1:36 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11:31 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 21:27 U.T.

The White Oval (SYS II = 71) in SSTB transits at   7:31 U.T.
The White Oval (SYS II = 71) in SSTB transits at  17:27 U.T.

 2009 / 8 / 26  U.T. DATE , CM AT  0:00 U.T SYS I= 223.59 SYS II= 308.32

The GRS Spot (SYS II = 134)  transits at   5: 7 U.T.
The GRS Spot (SYS II = 134)  transits at  15: 2 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:24 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:19 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:15 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  7:22 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 17:18 U.T.

The White Oval (SYS II = 71) in SSTB transits at   3:22 U.T.
The White Oval (SYS II = 71) in SSTB transits at  13:18 U.T.
The White Oval (SYS II = 71) in SSTB transits at  23:14 U.T.

 2009 / 8 / 27  U.T. DATE , CM AT  0:00 U.T SYS I= 21.8 SYS II= 98.44

The GRS Spot (SYS II = 134)  transits at   0:58 U.T.
The GRS Spot (SYS II = 134)  transits at  10:54 U.T.
The GRS Spot (SYS II = 134)  transits at  20:50 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:11 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16: 7 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  3:14 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 13:10 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 23: 5 U.T.

The White Oval (SYS II = 71) in SSTB transits at   9:10 U.T.
The White Oval (SYS II = 71) in SSTB transits at  19: 5 U.T.

 2009 / 8 / 28  U.T. DATE , CM AT  0:00 U.T SYS I= 179.65 SYS II= 248.91

The GRS Spot (SYS II = 134)  transits at   6:45 U.T.
The GRS Spot (SYS II = 134)  transits at  16:41 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2: 2 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11:58 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21:53 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  9: 1 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 18:56 U.T.

The White Oval (SYS II = 71) in SSTB transits at   5: 1 U.T.
The White Oval (SYS II = 71) in SSTB transits at  14:56 U.T.

 2009 / 8 / 29  U.T. DATE , CM AT  0:00 U.T SYS I= 337.85 SYS II= 39.38

The GRS Spot (SYS II = 134)  transits at   2:36 U.T.
The GRS Spot (SYS II = 134)  transits at  12:32 U.T.
The GRS Spot (SYS II = 134)  transits at  22:27 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7:49 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 17:44 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  4:52 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 14:47 U.T.

The White Oval (SYS II = 71) in SSTB transits at   0:52 U.T.
The White Oval (SYS II = 71) in SSTB transits at  10:47 U.T.
The White Oval (SYS II = 71) in SSTB transits at  20:43 U.T.

 2009 / 8 / 30  U.T. DATE , CM AT  0:00 U.T SYS I= 135.7 SYS II= 189.84

The GRS Spot (SYS II = 134)  transits at   8:23 U.T.
The GRS Spot (SYS II = 134)  transits at  18:18 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3:40 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13:36 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23:31 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  0:43 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 10:38 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 20:34 U.T.

The White Oval (SYS II = 71) in SSTB transits at   6:39 U.T.
The White Oval (SYS II = 71) in SSTB transits at  16:34 U.T.

 2009 / 8 / 31  U.T. DATE , CM AT  0:00 U.T SYS I= 293.91 SYS II= 339.96

The GRS Spot (SYS II = 134)  transits at   4:14 U.T.
The GRS Spot (SYS II = 134)  transits at  14:10 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9:27 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19:23 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  6:30 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 16:26 U.T.

The White Oval (SYS II = 71) in SSTB transits at   2:30 U.T.
The White Oval (SYS II = 71) in SSTB transits at  12:26 U.T.
The White Oval (SYS II = 71) in SSTB transits at  22:21 U.T.

 2009 / 9 / 1  U.T. DATE , CM AT  0:00 U.T SYS I= 91.41 SYS II= 130.08

The GRS Spot (SYS II = 134)  transits at   0: 6 U.T.
The GRS Spot (SYS II = 134)  transits at  10: 2 U.T.
The GRS Spot (SYS II = 134)  transits at  19:57 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  5:19 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 15:14 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  2:22 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 12:17 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 22:13 U.T.

The White Oval (SYS II = 71) in SSTB transits at   8:17 U.T.
The White Oval (SYS II = 71) in SSTB transits at  18:13 U.T.

 2009 / 9 / 2  U.T. DATE , CM AT  0:00 U.T SYS I= 249.61 SYS II= 280.9

The GRS Spot (SYS II = 134)  transits at   5:52 U.T.
The GRS Spot (SYS II = 134)  transits at  15:48 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1: 9 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11: 5 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21: 1 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  8: 8 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 18: 3 U.T.

The White Oval (SYS II = 71) in SSTB transits at   4: 8 U.T.
The White Oval (SYS II = 71) in SSTB transits at  14: 4 U.T.
The White Oval (SYS II = 71) in SSTB transits at  23:59 U.T.

 2009 / 9 / 3  U.T. DATE , CM AT  0:00 U.T SYS I= 47.46 SYS II= 71.02

The GRS Spot (SYS II = 134)  transits at   1:44 U.T.
The GRS Spot (SYS II = 134)  transits at  11:39 U.T.
The GRS Spot (SYS II = 134)  transits at  21:35 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:56 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:52 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  3:59 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 13:55 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 23:51 U.T.

The White Oval (SYS II = 71) in SSTB transits at   9:55 U.T.
The White Oval (SYS II = 71) in SSTB transits at  19:51 U.T.

August 1, 2009  Transit Times of Jupiter features.
 2009 / 8 / 1  U.T. DATE , CM AT  0:00 U.T SYS I= 233.09 SYS II= 148.01

The GRS Spot (SYS II = 134)  transits at   9:32 U.T.
The GRS Spot (SYS II = 134)  transits at  19:28 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:49 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:45 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1:52 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11:48 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 21:43 U.T.

The White Oval (SYS II = 71) in SSTB transits at   7:48 U.T.
The White Oval (SYS II = 71) in SSTB transits at  17:43 U.T.

 2009 / 8 / 2  U.T. DATE , CM AT  0:00 U.T SYS I= 30.59 SYS II= 298.48

The GRS Spot (SYS II = 134)  transits at   5:23 U.T.
The GRS Spot (SYS II = 134)  transits at  15:19 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:40 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:36 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:31 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  7:39 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 17:34 U.T.

The White Oval (SYS II = 71) in SSTB transits at   3:39 U.T.
The White Oval (SYS II = 71) in SSTB transits at  13:34 U.T.
The White Oval (SYS II = 71) in SSTB transits at  23:30 U.T.

 2009 / 8 / 3  U.T. DATE , CM AT  0:00 U.T SYS I= 189.14 SYS II= 88.95

The GRS Spot (SYS II = 134)  transits at   1:14 U.T.
The GRS Spot (SYS II = 134)  transits at  11:10 U.T.
The GRS Spot (SYS II = 134)  transits at  21: 5 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:27 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:22 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  3:30 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 13:25 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 23:21 U.T.

The White Oval (SYS II = 71) in SSTB transits at   9:25 U.T.
The White Oval (SYS II = 71) in SSTB transits at  19:21 U.T.

 2009 / 8 / 4  U.T. DATE , CM AT  0:00 U.T SYS I= 346.99 SYS II= 239.41

The GRS Spot (SYS II = 134)  transits at   7: 1 U.T.
The GRS Spot (SYS II = 134)  transits at  16:56 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:18 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:13 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22: 9 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  9:16 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 19:12 U.T.

The White Oval (SYS II = 71) in SSTB transits at   5:17 U.T.
The White Oval (SYS II = 71) in SSTB transits at  15:12 U.T.

 2009 / 8 / 5  U.T. DATE , CM AT  0:00 U.T SYS I= 144.84 SYS II= 29.88

The GRS Spot (SYS II = 134)  transits at   2:52 U.T.
The GRS Spot (SYS II = 134)  transits at  12:47 U.T.
The GRS Spot (SYS II = 134)  transits at  22:43 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8: 5 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18: 0 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5: 7 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15: 3 U.T.

The White Oval (SYS II = 71) in SSTB transits at   1: 8 U.T.
The White Oval (SYS II = 71) in SSTB transits at  11: 3 U.T.
The White Oval (SYS II = 71) in SSTB transits at  20:59 U.T.

 2009 / 8 / 6  U.T. DATE , CM AT  0:00 U.T SYS I= 303.05 SYS II= 180

The GRS Spot (SYS II = 134)  transits at   8:39 U.T.
The GRS Spot (SYS II = 134)  transits at  18:35 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3:56 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13:52 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23:47 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  0:59 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 10:55 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 20:50 U.T.

The White Oval (SYS II = 71) in SSTB transits at   6:55 U.T.
The White Oval (SYS II = 71) in SSTB transits at  16:50 U.T.

 2009 / 8 / 7  U.T. DATE , CM AT  0:00 U.T SYS I= 101.25 SYS II= 330.47

The GRS Spot (SYS II = 134)  transits at   4:30 U.T.
The GRS Spot (SYS II = 134)  transits at  14:26 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9:43 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19:38 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  6:46 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 16:41 U.T.

The White Oval (SYS II = 71) in SSTB transits at   2:46 U.T.
The White Oval (SYS II = 71) in SSTB transits at  12:42 U.T.
The White Oval (SYS II = 71) in SSTB transits at  22:37 U.T.

 2009 / 8 / 8  U.T. DATE , CM AT  0:00 U.T SYS I= 259.1 SYS II= 120.59

The GRS Spot (SYS II = 134)  transits at   0:22 U.T.
The GRS Spot (SYS II = 134)  transits at  10:17 U.T.
The GRS Spot (SYS II = 134)  transits at  20:13 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  5:34 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 15:30 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  2:37 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 12:33 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 22:29 U.T.

The White Oval (SYS II = 71) in SSTB transits at   8:33 U.T.
The White Oval (SYS II = 71) in SSTB transits at  18:29 U.T.

 2009 / 8 / 9  U.T. DATE , CM AT  0:00 U.T SYS I= 57.3 SYS II= 271.41

The GRS Spot (SYS II = 134)  transits at   6: 8 U.T.
The GRS Spot (SYS II = 134)  transits at  16: 3 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1:25 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11:21 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21:16 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  8:23 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 18:19 U.T.

The White Oval (SYS II = 71) in SSTB transits at   4:24 U.T.
The White Oval (SYS II = 71) in SSTB transits at  14:19 U.T.

 2009 / 8 / 10  U.T. DATE , CM AT  0:00 U.T SYS I= 215.16 SYS II= 61.88

The GRS Spot (SYS II = 134)  transits at   1:59 U.T.
The GRS Spot (SYS II = 134)  transits at  11:55 U.T.
The GRS Spot (SYS II = 134)  transits at  21:50 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7:12 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 17: 7 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  4:15 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 14:10 U.T.

The White Oval (SYS II = 71) in SSTB transits at   0:15 U.T.
The White Oval (SYS II = 71) in SSTB transits at  10:10 U.T.
The White Oval (SYS II = 71) in SSTB transits at  20: 6 U.T.

 2009 / 8 / 11  U.T. DATE , CM AT  0:00 U.T SYS I= 13.36 SYS II= 212.34

The GRS Spot (SYS II = 134)  transits at   7:46 U.T.
The GRS Spot (SYS II = 134)  transits at  17:41 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3: 3 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:58 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22:54 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  0: 6 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 10: 1 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 19:57 U.T.

The White Oval (SYS II = 71) in SSTB transits at   6: 1 U.T.
The White Oval (SYS II = 71) in SSTB transits at  15:57 U.T.

 2009 / 8 / 12  U.T. DATE , CM AT  0:00 U.T SYS I= 171.21 SYS II= 2.46

The GRS Spot (SYS II = 134)  transits at   3:37 U.T.
The GRS Spot (SYS II = 134)  transits at  13:33 U.T.
The GRS Spot (SYS II = 134)  transits at  23:29 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:50 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:46 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5:53 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15:49 U.T.

The White Oval (SYS II = 71) in SSTB transits at   1:53 U.T.
The White Oval (SYS II = 71) in SSTB transits at  11:49 U.T.
The White Oval (SYS II = 71) in SSTB transits at  21:44 U.T.

 2009 / 8 / 13  U.T. DATE , CM AT  0:00 U.T SYS I= 329.41 SYS II= 152.93

The GRS Spot (SYS II = 134)  transits at   9:24 U.T.
The GRS Spot (SYS II = 134)  transits at  19:20 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:41 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:37 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1:44 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11:40 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 21:35 U.T.

The White Oval (SYS II = 71) in SSTB transits at   7:40 U.T.
The White Oval (SYS II = 71) in SSTB transits at  17:35 U.T.

 2009 / 8 / 14  U.T. DATE , CM AT  0:00 U.T SYS I= 127.27 SYS II= 303.4

The GRS Spot (SYS II = 134)  transits at   5:15 U.T.
The GRS Spot (SYS II = 134)  transits at  15:11 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:32 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:28 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:23 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  7:31 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 17:26 U.T.

The White Oval (SYS II = 71) in SSTB transits at   3:31 U.T.
The White Oval (SYS II = 71) in SSTB transits at  13:26 U.T.
The White Oval (SYS II = 71) in SSTB transits at  23:22 U.T.

 

 

Schedule Updated on July 24, 2009.  Using CM II longitude of 216 degrees.

 Possible Impact on Jupiter or a very dark spot. See  July 19 2009 www.spaceweather.com for discovery and picture. In the mean time here are UT date and time the spot can be seen.  Provided by, author of WinJupOS.  Taken from from Jupiter Yahoo group.

Hans-Joerg Mettig, Kirchzartener Str. 28,
D-79117 Freiburg im Breisgau
http://jupos.org

WinJUPOS 8.1.8 (Jupiter), C.M. transit times, 2009.07.19 19:17
Object longitude: L2 = 216,0° + 0,0000°/d * (T – 2009 Aug 01,5)
Time interval: 2009 Jul 19,0 … 2009 Aug 01,0
Output format: Date UT (C.M. of System 2)
——————————————————————————
2009 Jul 19 06:09 ( 216°) 16:05 ( 216°)
2009 Jul 20 02:00 ( 216°) 11:56 ( 216°) 21:52 ( 216°)
2009 Jul 21 07:47 ( 216°) 17:43 ( 216°)
2009 Jul 22 03:38 ( 216°) 13:34 ( 216°) 23:30 ( 216°)
2009 Jul 23 09:25 ( 216°) 19:21 ( 216°)
2009 Jul 24 05:16 ( 216°) 15:12 ( 216°)
2009 Jul 25 01:08 ( 216°) 11:03 ( 216°) 20:59 ( 216°)
2009 Jul 26 06:54 ( 216°) 16:50 ( 216°)
2009 Jul 27 02:45 ( 216°) 12:41 ( 216°) 22:37 ( 216°)
2009 Jul 28 08:32 ( 216°) 18:28 ( 216°)
2009 Jul 29 04:23 ( 216°) 14:19 ( 216°)
2009 Jul 30 00:15 ( 216°) 10:10 ( 216°) 20:06 ( 216°)
2009 Jul 31 06:01 ( 216°) 15:57 ( 216°)
——————————————————————————

PS this is not  the same as the white oval in the SSTB.

I go away for the weekend and this happens!

As of July 2009 the color of the GRS is noticable dimmer than the previous year. It will take a very keen eye to see the shape of Oval BA. No longer a bright orange hue the oval will take some effort to see.

July 2009

The planet Jupiter, whose atmospheric features are easy to see in modest telescopes, is rising earlier in July. Rising above the eastern horizon at 11:00 p.m. the first week of July and by 9:00 p.m. the last week of July. To get a good view of the many different cloud types on the planet, Jupiter must be 15 degrees or more above the horizon.

What can you see? Then two dark equatorial belts in the north and south show up in the smallest of scopes. Examine them for fine detail in and around them. The GRS Red Spot is on the southern edge of the South Equatorial Belt within the South Tropical Zone. This large oval shaped storm system varies in color and brightness. This year it is a pale orange hue, making it a little difficult to see.  A darker string of clouds outlines its position in the Red Spot Hollow.  The current longitude position is 134 degrees in the System II rotation stream. It will slowly drift in the wind currents, increasing or decreasing in longitude over time.

The newly formed oval BA, created from the merger of three long lasting ovals name BC, DE, and FA, at one time was nearly as colorful as the GRS. Presently it has lost most of that hue and may be difficult to see as a pale white oval.

These transit listings for both the GRS and oval BA will provide a time frame when they are near the central meridian, the north -south line, of the planet. Better time frames can be determined by visually measuring when the center of the GRS or oval BA crosses the central meridian of Jupiter.

The movements of the four Galilean Moons will pass in front of the planet, a transit, from our point of view and cast a shadow onto the cloud tops of Jupiter. Each moon displays a different appearance while in transit. Io and Europa will disappear soon after entering transit only to be betrayed by their shadow on the clouds. Ganymede and Callisto remain a darker shape while in front of Jupiter, sometimes mistaken for a shadow.

Consult the list of events to view one of these events.

Listing of the Great Red Spot,GRS, and Oval BA for the next 14 days.
Times listed are for Universal Time, U.T., and Universal Date.

 2009 / 7 / 23  U.T. DATE , CM AT  0:00 U.T SYS I= 250.66 SYS II= 234.49

The GRS Spot (SYS II = 134)  transits at   7: 9 U.T.
The GRS Spot (SYS II = 134)  transits at  17: 5 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:26 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:22 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22:17 U.T.

The Dark Condensation (SYS II = 216) in SPR transits at  9:25 U.T.
The Dark Condensation (SYS II = 216) in SPR transits at 19:20 U.T.

The White Oval (SYS II = 71) in SSTB transits at   5:25 U.T.
The White Oval (SYS II = 71) in SSTB transits at  15:20 U.T.

 2009 / 7 / 24  U.T. DATE , CM AT  0:00 U.T SYS I= 48.52 SYS II= 24.61

The GRS Spot (SYS II = 134)  transits at   3: 1 U.T.
The GRS Spot (SYS II = 134)  transits at  12:56 U.T.
The GRS Spot (SYS II = 134)  transits at  22:52 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:13 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18: 9 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5:16 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15:12 U.T.

The White Oval (SYS II = 71) in SSTB transits at   1:16 U.T.
The White Oval (SYS II = 71) in SSTB transits at  11:12 U.T.
The White Oval (SYS II = 71) in SSTB transits at  21: 8 U.T.

 2009 / 7 / 25  U.T. DATE , CM AT  0:00 U.T SYS I= 206.37 SYS II= 175.08

The GRS Spot (SYS II = 134)  transits at   8:47 U.T.
The GRS Spot (SYS II = 134)  transits at  18:43 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4: 4 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14: 0 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23:56 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1: 7 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11: 3 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 20:59 U.T.

The White Oval (SYS II = 71) in SSTB transits at   7: 3 U.T.
The White Oval (SYS II = 71) in SSTB transits at  16:59 U.T.

 2009 / 7 / 26  U.T. DATE , CM AT  0:00 U.T SYS I= 4.92 SYS II= 325.55

The GRS Spot (SYS II = 134)  transits at   4:38 U.T.
The GRS Spot (SYS II = 134)  transits at  14:34 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  9:51 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 19:47 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  6:54 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 16:50 U.T.

The White Oval (SYS II = 71) in SSTB transits at   2:54 U.T.
The White Oval (SYS II = 71) in SSTB transits at  12:50 U.T.
The White Oval (SYS II = 71) in SSTB transits at  22:45 U.T.

 2009 / 7 / 27  U.T. DATE , CM AT  0:00 U.T SYS I= 162.42 SYS II= 116.02

The GRS Spot (SYS II = 134)  transits at   0:29 U.T.
The GRS Spot (SYS II = 134)  transits at  10:25 U.T.
The GRS Spot (SYS II = 134)  transits at  20:21 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  5:42 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 15:38 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  2:45 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 12:41 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 22:36 U.T.

The White Oval (SYS II = 71) in SSTB transits at   8:41 U.T.
The White Oval (SYS II = 71) in SSTB transits at  18:36 U.T.

 2009 / 7 / 28  U.T. DATE , CM AT  0:00 U.T SYS I= 320.63 SYS II= 266.48

The GRS Spot (SYS II = 134)  transits at   6:16 U.T.
The GRS Spot (SYS II = 134)  transits at  16:12 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  1:33 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 11:29 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 21:24 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  8:32 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 18:27 U.T.

The White Oval (SYS II = 71) in SSTB transits at   4:32 U.T.
The White Oval (SYS II = 71) in SSTB transits at  14:27 U.T.

 2009 / 7 / 29  U.T. DATE , CM AT  0:00 U.T SYS I= 118.83 SYS II= 56.6

The GRS Spot (SYS II = 134)  transits at   2: 8 U.T.
The GRS Spot (SYS II = 134)  transits at  12: 3 U.T.
The GRS Spot (SYS II = 134)  transits at  21:59 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  7:20 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 17:16 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  4:23 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 14:19 U.T.

The White Oval (SYS II = 71) in SSTB transits at   0:23 U.T.
The White Oval (SYS II = 71) in SSTB transits at  10:19 U.T.
The White Oval (SYS II = 71) in SSTB transits at  20:15 U.T.

 2009 / 7 / 30  U.T. DATE , CM AT  0:00 U.T SYS I= 276.68 SYS II= 207.42

The GRS Spot (SYS II = 134)  transits at   7:54 U.T.
The GRS Spot (SYS II = 134)  transits at  17:49 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  3:11 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 13: 6 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 23: 2 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  0:14 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 10: 9 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 20: 5 U.T.

The White Oval (SYS II = 71) in SSTB transits at   6: 9 U.T.
The White Oval (SYS II = 71) in SSTB transits at  16: 5 U.T.

 2009 / 7 / 31  U.T. DATE , CM AT  0:00 U.T SYS I= 74.88 SYS II= 357.54

The GRS Spot (SYS II = 134)  transits at   3:45 U.T.
The GRS Spot (SYS II = 134)  transits at  13:41 U.T.
The GRS Spot (SYS II = 134)  transits at  23:37 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8:58 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18:54 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  6: 1 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15:57 U.T.

The White Oval (SYS II = 71) in SSTB transits at   2: 1 U.T.
The White Oval (SYS II = 71) in SSTB transits at  11:57 U.T.
The White Oval (SYS II = 71) in SSTB transits at  21:52 U.T.

 2009 / 8 / 1  U.T. DATE , CM AT  0:00 U.T SYS I= 233.09 SYS II= 148.01

The GRS Spot (SYS II = 134)  transits at   9:32 U.T.
The GRS Spot (SYS II = 134)  transits at  19:28 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  4:49 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 14:45 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  1:52 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 11:48 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 21:43 U.T.

The White Oval (SYS II = 71) in SSTB transits at   7:48 U.T.
The White Oval (SYS II = 71) in SSTB transits at  17:43 U.T.

 2009 / 8 / 2  U.T. DATE , CM AT  0:00 U.T SYS I= 30.59 SYS II= 298.48

The GRS Spot (SYS II = 134)  transits at   5:23 U.T.
The GRS Spot (SYS II = 134)  transits at  15:19 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  0:40 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 10:36 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 20:31 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  7:39 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 17:34 U.T.

The White Oval (SYS II = 71) in SSTB transits at   3:39 U.T.
The White Oval (SYS II = 71) in SSTB transits at  13:34 U.T.
The White Oval (SYS II = 71) in SSTB transits at  23:30 U.T.

 2009 / 8 / 3  U.T. DATE , CM AT  0:00 U.T SYS I= 189.14 SYS II= 88.95

The GRS Spot (SYS II = 134)  transits at   1:14 U.T.
The GRS Spot (SYS II = 134)  transits at  11:10 U.T.
The GRS Spot (SYS II = 134)  transits at  21: 5 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  6:27 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 16:22 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  3:30 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 13:25 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 23:21 U.T.

The White Oval (SYS II = 71) in SSTB transits at   9:25 U.T.
The White Oval (SYS II = 71) in SSTB transits at  19:21 U.T.

 2009 / 8 / 4  U.T. DATE , CM AT  0:00 U.T SYS I= 346.99 SYS II= 239.41

The GRS Spot (SYS II = 134)  transits at   7: 1 U.T.
The GRS Spot (SYS II = 134)  transits at  16:56 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  2:18 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 12:13 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 22: 9 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  9:16 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 19:12 U.T.

The White Oval (SYS II = 71) in SSTB transits at   5:17 U.T.
The White Oval (SYS II = 71) in SSTB transits at  15:12 U.T.

 2009 / 8 / 5  U.T. DATE , CM AT  0:00 U.T SYS I= 144.84 SYS II= 29.88

The GRS Spot (SYS II = 134)  transits at   2:52 U.T.
The GRS Spot (SYS II = 134)  transits at  12:47 U.T.
The GRS Spot (SYS II = 134)  transits at  22:43 U.T.

The Oval BA  (SYS II = 323) in STZ  transits at  8: 5 U.T.
The Oval BA  (SYS II = 323) in STZ  transits at 18: 0 U.T.

The Dark Impact (SYS II = 216) in SPR transits at  5: 7 U.T.
The Dark Impact (SYS II = 216) in SPR transits at 15: 3 U.T.

The White Oval (SYS II = 71) in SSTB transits at   1: 8 U.T.
The White Oval (SYS II = 71) in SSTB transits at  11: 3 U.T.
The White Oval (SYS II = 71) in SSTB transits at  20:59 U.T.

GALILEAN SATELLITE PHENOMENA

July 2009
Transits, Occultations, Reappearance and disappearances
from Jupiters’s limb and Jupiter’s shadow.

Table created using The Planets 2.02
A FREE program available from http://www.cpac.org.uk

All times given as Universal Time

Thu  2 Jul 2009 08:14   Io : Shadow Transit Begins        S
Thu  2 Jul 2009 09:13   Io : Transit Begins               ST
Thu  2 Jul 2009 10:32   Io : Shadow Transit Ends          T
Thu  2 Jul 2009 11:31   Io : Transit Ends                
Fri  3 Jul 2009 00:01   Eur: Disappears into Eclipse     
Fri  3 Jul 2009 04:54   Eur: Reappears from Occultation  
Fri  3 Jul 2009 05:33   Io : Disappears into Eclipse     
Fri  3 Jul 2009 08:48   Io : Reappears from Occultation  
Sat  4 Jul 2009 02:43   Io : Shadow Transit Begins        S
Sat  4 Jul 2009 03:40   Io : Transit Begins               ST
Sat  4 Jul 2009 05:01   Io : Shadow Transit Ends          T
Sat  4 Jul 2009 05:58   Io : Transit Ends                
Sat  4 Jul 2009 08:35   Gan: Disappears into Eclipse     
Sat  4 Jul 2009 12:14   Gan: Reappears from Eclipse      
Sat  4 Jul 2009 12:24   Gan: Disappears into Occultation 
Sat  4 Jul 2009 16:01   Gan: Reappears from Occultation  
Sat  4 Jul 2009 19:01   Eur: Shadow Transit Begins        S
Sat  4 Jul 2009 20:52   Eur: Transit Begins               ST
Sat  4 Jul 2009 21:53   Eur: Shadow Transit Ends          T
Sat  4 Jul 2009 23:44   Eur: Transit Ends                
Sun  5 Jul 2009 00:02   Io : Disappears into Eclipse     
Sun  5 Jul 2009 03:15   Io : Reappears from Occultation  
Sun  5 Jul 2009 21:11   Io : Shadow Transit Begins        S
Sun  5 Jul 2009 22:07   Io : Transit Begins               ST
Sun  5 Jul 2009 23:30   Io : Shadow Transit Ends          T
Mon  6 Jul 2009 00:25   Io : Transit Ends                
Mon  6 Jul 2009 11:00   Cal: Shadow Transit Begins        S
Mon  6 Jul 2009 13:19   Eur: Disappears into Eclipse      S
Mon  6 Jul 2009 15:52   Cal: Shadow Transit Ends         
Mon  6 Jul 2009 18:04   Eur: Reappears from Occultation  
Mon  6 Jul 2009 18:30   Io : Disappears into Eclipse     
Mon  6 Jul 2009 19:43   Cal: Transit Begins               T
Mon  6 Jul 2009 21:41   Io : Reappears from Occultation   T
Tue  7 Jul 2009 00:22   Cal: Transit Ends                
Tue  7 Jul 2009 15:40   Io : Shadow Transit Begins        S
Tue  7 Jul 2009 16:33   Io : Transit Begins               ST
Tue  7 Jul 2009 17:58   Io : Shadow Transit Ends          T
Tue  7 Jul 2009 18:51   Io : Transit Ends                
Tue  7 Jul 2009 22:37   Gan: Shadow Transit Begins        S
Wed  8 Jul 2009 02:11   Gan: Transit Begins               ST
Wed  8 Jul 2009 02:16   Gan: Shadow Transit Ends          T
Wed  8 Jul 2009 05:49   Gan: Transit Ends                
Wed  8 Jul 2009 08:18   Eur: Shadow Transit Begins        S
Wed  8 Jul 2009 10:02   Eur: Transit Begins               ST
Wed  8 Jul 2009 11:11   Eur: Shadow Transit Ends          T
Wed  8 Jul 2009 12:54   Eur: Transit Ends                
Wed  8 Jul 2009 12:59   Io : Disappears into Eclipse     
Wed  8 Jul 2009 16:08   Io : Reappears from Occultation  
Thu  9 Jul 2009 10:08   Io : Shadow Transit Begins        S
Thu  9 Jul 2009 11:00   Io : Transit Begins               ST
Thu  9 Jul 2009 12:27   Io : Shadow Transit Ends          T
Thu  9 Jul 2009 13:18   Io : Transit Ends                
Fri 10 Jul 2009 02:38   Eur: Disappears into Eclipse     
Fri 10 Jul 2009 07:15   Eur: Reappears from Occultation  
Fri 10 Jul 2009 07:27   Io : Disappears into Eclipse     
Fri 10 Jul 2009 10:34   Io : Reappears from Occultation  
Sat 11 Jul 2009 04:37   Io : Shadow Transit Begins        S
Sat 11 Jul 2009 05:26   Io : Transit Begins               ST
Sat 11 Jul 2009 06:55   Io : Shadow Transit Ends          T
Sat 11 Jul 2009 07:45   Io : Transit Ends                
Sat 11 Jul 2009 12:36   Gan: Disappears into Eclipse     
Sat 11 Jul 2009 19:29   Gan: Reappears from Occultation  
Sat 11 Jul 2009 21:36   Eur: Shadow Transit Begins        S
Sat 11 Jul 2009 23:11   Eur: Transit Begins               ST
Sun 12 Jul 2009 00:28   Eur: Shadow Transit Ends          T
Sun 12 Jul 2009 01:55   Io : Disappears into Eclipse      T
Sun 12 Jul 2009 02:03   Eur: Transit Ends                
Sun 12 Jul 2009 05:00   Io : Reappears from Occultation  
Sun 12 Jul 2009 23:05   Io : Shadow Transit Begins        S
Sun 12 Jul 2009 23:53   Io : Transit Begins               ST
Mon 13 Jul 2009 01:24   Io : Shadow Transit Ends          T
Mon 13 Jul 2009 02:11   Io : Transit Ends                
Mon 13 Jul 2009 15:56   Eur: Disappears into Eclipse     
Mon 13 Jul 2009 20:24   Io : Disappears into Eclipse     
Mon 13 Jul 2009 20:24   Eur: Reappears from Occultation  
Mon 13 Jul 2009 23:27   Io : Reappears from Occultation  
Tue 14 Jul 2009 17:34   Io : Shadow Transit Begins        S
Tue 14 Jul 2009 18:19   Io : Transit Begins               ST
Tue 14 Jul 2009 19:53   Io : Shadow Transit Ends          T
Tue 14 Jul 2009 20:37   Io : Transit Ends                
Tue 14 Jul 2009 21:19   Cal: Disappears into Eclipse     
Wed 15 Jul 2009 02:07   Cal: Reappears from Eclipse      
Wed 15 Jul 2009 02:37   Gan: Shadow Transit Begins        S
Wed 15 Jul 2009 04:18   Cal: Disappears into Occultation  S
Wed 15 Jul 2009 05:37   Gan: Transit Begins               ST
Wed 15 Jul 2009 06:16   Gan: Shadow Transit Ends          T
Wed 15 Jul 2009 08:53   Cal: Reappears from Occultation   T
Wed 15 Jul 2009 09:14   Gan: Transit Ends                
Wed 15 Jul 2009 10:53   Eur: Shadow Transit Begins        S
Wed 15 Jul 2009 12:19   Eur: Transit Begins               ST
Wed 15 Jul 2009 13:45   Eur: Shadow Transit Ends          T
Wed 15 Jul 2009 14:52   Io : Disappears into Eclipse      T
Wed 15 Jul 2009 15:11   Eur: Transit Ends                
Wed 15 Jul 2009 17:53   Io : Reappears from Occultation  
Thu 16 Jul 2009 12:03   Io : Shadow Transit Begins        S
Thu 16 Jul 2009 12:46   Io : Transit Begins               ST
Thu 16 Jul 2009 14:21   Io : Shadow Transit Ends          T
Thu 16 Jul 2009 15:04   Io : Transit Ends                
Fri 17 Jul 2009 05:15   Eur: Disappears into Eclipse     
Fri 17 Jul 2009 09:21   Io : Disappears into Eclipse     
Fri 17 Jul 2009 09:34   Eur: Reappears from Occultation  
Fri 17 Jul 2009 12:19   Io : Reappears from Occultation  
Sat 18 Jul 2009 06:31   Io : Shadow Transit Begins        S
Sat 18 Jul 2009 07:12   Io : Transit Begins               ST
Sat 18 Jul 2009 08:50   Io : Shadow Transit Ends          T
Sat 18 Jul 2009 09:30   Io : Transit Ends                
Sat 18 Jul 2009 16:36   Gan: Disappears into Eclipse     
Sat 18 Jul 2009 22:53   Gan: Reappears from Occultation  
Sun 19 Jul 2009 00:10   Eur: Shadow Transit Begins        S
Sun 19 Jul 2009 01:28   Eur: Transit Begins               ST
Sun 19 Jul 2009 03:02   Eur: Shadow Transit Ends          T
Sun 19 Jul 2009 03:49   Io : Disappears into Eclipse      T
Sun 19 Jul 2009 04:20   Eur: Transit Ends                
Sun 19 Jul 2009 06:45   Io : Reappears from Occultation  
Mon 20 Jul 2009 01:00   Io : Shadow Transit Begins        S
Mon 20 Jul 2009 01:38   Io : Transit Begins               ST
Mon 20 Jul 2009 03:18   Io : Shadow Transit Ends          T
Mon 20 Jul 2009 03:56   Io : Transit Ends                
Mon 20 Jul 2009 18:33   Eur: Disappears into Eclipse     
Mon 20 Jul 2009 22:18   Io : Disappears into Eclipse     
Mon 20 Jul 2009 22:43   Eur: Reappears from Occultation  
Tue 21 Jul 2009 01:12   Io : Reappears from Occultation  
Tue 21 Jul 2009 19:29   Io : Shadow Transit Begins        S
Tue 21 Jul 2009 20:04   Io : Transit Begins               ST
Tue 21 Jul 2009 21:47   Io : Shadow Transit Ends          T
Tue 21 Jul 2009 22:23   Io : Transit Ends                
Wed 22 Jul 2009 06:36   Gan: Shadow Transit Begins        S
Wed 22 Jul 2009 08:58   Gan: Transit Begins               ST
Wed 22 Jul 2009 10:16   Gan: Shadow Transit Ends          T
Wed 22 Jul 2009 12:36   Gan: Transit Ends                
Wed 22 Jul 2009 13:27   Eur: Shadow Transit Begins        S
Wed 22 Jul 2009 14:35   Eur: Transit Begins               ST
Wed 22 Jul 2009 16:19   Eur: Shadow Transit Ends          T
Wed 22 Jul 2009 16:46   Io : Disappears into Eclipse      T
Wed 22 Jul 2009 17:27   Eur: Transit Ends                
Wed 22 Jul 2009 19:38   Io : Reappears from Occultation  
Thu 23 Jul 2009 05:11   Cal: Shadow Transit Begins        S
Thu 23 Jul 2009 10:02   Cal: Shadow Transit Ends         
Thu 23 Jul 2009 10:35   Cal: Transit Begins               T
Thu 23 Jul 2009 13:57   Io : Shadow Transit Begins        ST
Thu 23 Jul 2009 14:31   Io : Transit Begins               STT
Thu 23 Jul 2009 15:13   Cal: Transit Ends                 ST
Thu 23 Jul 2009 16:16   Io : Shadow Transit Ends          T
Thu 23 Jul 2009 16:49   Io : Transit Ends                
Fri 24 Jul 2009 07:52   Eur: Disappears into Eclipse     
Fri 24 Jul 2009 11:15   Io : Disappears into Eclipse     
Fri 24 Jul 2009 11:52   Eur: Reappears from Occultation  
Fri 24 Jul 2009 14:04   Io : Reappears from Occultation  
Sat 25 Jul 2009 08:26   Io : Shadow Transit Begins        S
Sat 25 Jul 2009 08:57   Io : Transit Begins               ST
Sat 25 Jul 2009 10:44   Io : Shadow Transit Ends          T
Sat 25 Jul 2009 11:15   Io : Transit Ends                
Sat 25 Jul 2009 20:36   Gan: Disappears into Eclipse     
Sun 26 Jul 2009 02:14   Gan: Reappears from Occultation  
Sun 26 Jul 2009 02:45   Eur: Shadow Transit Begins        S
Sun 26 Jul 2009 03:43   Eur: Transit Begins               ST
Sun 26 Jul 2009 05:37   Eur: Shadow Transit Ends          T
Sun 26 Jul 2009 05:43   Io : Disappears into Eclipse      T
Sun 26 Jul 2009 06:35   Eur: Transit Ends                
Sun 26 Jul 2009 08:30   Io : Reappears from Occultation  
Mon 27 Jul 2009 02:54   Io : Shadow Transit Begins        S
Mon 27 Jul 2009 03:23   Io : Transit Begins               ST
Mon 27 Jul 2009 05:13   Io : Shadow Transit Ends          T
Mon 27 Jul 2009 05:41   Io : Transit Ends                
Mon 27 Jul 2009 21:10   Eur: Disappears into Eclipse     
Tue 28 Jul 2009 00:12   Io : Disappears into Eclipse     
Tue 28 Jul 2009 01:00   Eur: Reappears from Occultation  
Tue 28 Jul 2009 02:56   Io : Reappears from Occultation  
Tue 28 Jul 2009 21:23   Io : Shadow Transit Begins        S
Tue 28 Jul 2009 21:49   Io : Transit Begins               ST
Tue 28 Jul 2009 23:42   Io : Shadow Transit Ends          T
Wed 29 Jul 2009 00:07   Io : Transit Ends                
Wed 29 Jul 2009 10:37   Gan: Shadow Transit Begins        S
Wed 29 Jul 2009 12:17   Gan: Transit Begins               ST
Wed 29 Jul 2009 14:17   Gan: Shadow Transit Ends          T
Wed 29 Jul 2009 15:55   Gan: Transit Ends                
Wed 29 Jul 2009 16:02   Eur: Shadow Transit Begins        S
Wed 29 Jul 2009 16:50   Eur: Transit Begins               ST
Wed 29 Jul 2009 18:40   Io : Disappears into Eclipse      ST
Wed 29 Jul 2009 18:54   Eur: Shadow Transit Ends          T
Wed 29 Jul 2009 19:42   Eur: Transit Ends                
Wed 29 Jul 2009 21:22   Io : Reappears from Occultation  
Thu 30 Jul 2009 15:52   Io : Shadow Transit Begins        S
Thu 30 Jul 2009 16:15   Io : Transit Begins               ST
Thu 30 Jul 2009 18:10   Io : Shadow Transit Ends          T
Thu 30 Jul 2009 18:33   Io : Transit Ends                
Fri 31 Jul 2009 10:29   Eur: Disappears into Eclipse     
Fri 31 Jul 2009 13:09   Io : Disappears into Eclipse     
Fri 31 Jul 2009 14:08   Eur: Reappears from Occultation  
Fri 31 Jul 2009 15:28   Cal: Disappears into Eclipse     
Fri 31 Jul 2009 15:48   Io : Reappears from Occultation  
Fri 31 Jul 2009 23:27   Cal: Reappears from Occultation  
Sat  1 Aug 2009 10:21   Io : Shadow Transit Begins        S
Sat  1 Aug 2009 10:41   Io : Transit Begins               ST
Sat  1 Aug 2009 12:39   Io : Shadow Transit Ends          T
Sat  1 Aug 2009 12:59   Io : Transit Ends

eg: “SST” indicates a triple event. 2 shadow-transits  and 1 moon-transit

DISCLAIMER: The above table is for indicative purposes only.
Times may differ by a minute or two to those quoted in the
Astronomical Almanac.

 

Lunar Observing

When it comes to viewing a diverse variety of terrain our moon has it.  Craters come in all types, but there is more to the moon than craters. The right lighting conditions and the rocking, or librations, also comes into play when observing the lunar terrain. Observing the moon is always an enjoyable experience. In the last fifteen years interest in lunar observing has been rebounding. And why not, it’s close and easy to find, obviously.  New exploration by spacecraft from more than one county’s space agency is spurring up more interest in the astronomy community.

In the commercial market, software aimed at amateur astronomers that identifying lunar terrain features and viewing conditions had been slow to developed. Now they are readily available along with new charts designed for use at the telescope eyepiece.  As with most observing targets, there are list of the best, largest, or most difficult in a class. Mostly found on web pages of individuals or an amateur astronomy organization. The Astronomical League has developed a Lunar Observing Award Certificate program.

One developed by Dr. Charles Wood and marketed by Sky Publishing Co. has generated a large following. Unlike most lists, The Lunar 100 is a list of the different lunar features in order of difficulty, including a description of each item. A lunar map of the whole moon identifies the location of each. Maps of a larger scale are needed to identify most of the higher numbered items.

Other fine reference I’ve come across include the pdf publication Observing The Lunar 100, that can be downloaded from http://www.kerryastronomyclub.com/lunar100.htm,  and personal web pages aimed at photographing all of the L100 features. A recent addition is one by Mike Morris, at  http://almiraobservatory.awardspace.com/OBSLUNAR100.html

While the highest numbered object may be challenging and take time, I still keep at it. Just recently I was able to see L100 with my TV101  f/5.4  and employing a magnification of 98X. Knowing what to look for was imperative; otherwise I would not have seen it.

Good Viewing!

Variable Stars

Epsilion Aurigae

One of the key projects of the International Year of Astronomy 2009 is the monitoring of the very long period eclipsing variable star Epsilon Aurigae. This campaign is the cooperation of the IYA the AAVSO, American Association of Variable Star Observers, world wide Variable Star Observers organizations and many professional astronomers and observatories. This naked eye star has an unusual companion that eclipses the primary every 27 years. The exact type and nature of the companion has been the conjecture for over 175 years. The AAVSO has more details at this web site http://www.aavso.org/vstar/vsots/eps_aur.shtml

One IYA project goal is to get ordinary citizen worldwide to observe and report Epsilon Aurigae estimated magnitude brightness to a dedicated web page. The site provides information on how to find and how to determine the magnitude of the star. Point your browser to http://www.citizensky.org for the all the details.  Navigate to the Getting Started then Observing portion of the web page where you can download the file 10startutorial.pdf.  All of the information is in the PDF file to begin observing 10 variable stars throughout the year and where to report online. You must register to submit observations.  Here’s a short cut  http://www.citizensky.org/content/how-observe

What kind of equipment is required?  None at all!  Magnitude values are determined by eye alone. For the more serious amateur with the right equipment, software and experience photometric magnitude values can be submitted to the observing campaign.   More insight about this can be found on Jeff  Hopkins http://www.hposoft.com/Campaign09.html web site.

Epsilon Aurigae timeline

CALENDAR OF ECLIPSE EVENTS:
2009 Aug 6th – predicted start of eclipse, rising with sun as a morning star
2009 Nov/Dec – eps Aur transits at midnight –> evening star
2009 Dec 21 – predicted start of totality, evening star
2010 May – eps Aur setting with the sun, mid eclipse brightening?
2010 Aug 1st – predicted time of mid-eclipse, early morning star
2010 autumn – end of mid-eclipse brightening?
2010 Nov/Dec – eps Aur transits at midnight –> evening star
2011 March 12 – predicted end of totality, evening star
2011 May 15 – predicted end of eclipse, next one starts in 2036.

Go ahead, get involved. It’s a little more complicated the The Globe at Night program.

I am all ready submitting observations of the stars in the 10 Star Tutorial PDF. Time for you to begin!

Good Viewing!

Java Program back online

For those that have been asking the java script program that I modified to include a few Eclipsing binary and Cepheid variable stars is once more avialable. Follow this link.  http://lackawannaastronomicalsociety.org/varstar.htm

Good Viewing.