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Originally Posted by Tropo-Bob
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.
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Weather permitting Bob, I'm going to roll out the 254mm Sct on the Celestron AVX mount.. just got it from Bintel ,and have a good look at it, and also those unusually bright bluish Festoons!
Cheers bigjoe.