Quote:
Originally Posted by bigjoe
..It was awfully close to the polar region saw some obvious bluish regions (Festoons) in and extending out of the main belt nearby, in ordinary seeing with Etx125 and 13mm nagler, here in Concord..
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The Shadow certainly was close to the Pole. Europa's shadow goes over Jupiter on Monday evening (8.20 to 10.46). I will watch with interest to see where its shadow fall in comparison. Clouds permitting ( I only saw the Shadow for 2 minutes last night, then cloud, then rain
); I will also look for Europa reappearing after Transit at 9.20ish.
I noticed last night that Ganymede could be detected reappearing outside of Jupiter's disc some 2 minutes earlier than the prediction. Anybody know how these predictions work? Is it the middle of the moons disc crossing the Jupiter's edge that is used for the prediction? I am guessing so and that is why I could see the edge of the moon clear Jupiter earlier than the predicted time.