Category Archives: Observing Notes

Observing Notes by John Sabia

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 … Continue reading

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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 … Continue reading

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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 … Continue reading

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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, … Continue reading

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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 … Continue reading

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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 … Continue reading

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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. … Continue reading

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