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 [...]

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, [...]

 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 [...]

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 [...]

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 [...]

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 [...]