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  #1  
Old 24-08-2009, 09:34 PM
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Black dot on Jupiter?

The clouds have cleared.. just got my AP out, and there is a black dot on jupiter.. nearly bang smack in the middle..

Is this a moon transit?

Can someone else have a look?

Daniel.
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  #2  
Old 24-08-2009, 09:39 PM
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[1ponders] (Paul)
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Yep its Io. If you look closely you should also see Io just to the side of the shadow.
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  #3  
Old 24-08-2009, 11:08 PM
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Wohooo... the clouds cleared a bit more.. and there it is, clear as day, a golf ball floating across the surface of Jupiter.

The best view was with the Zeiss 4mm w/Zeiss barlow. The view is crisp, and I can see graduation on one edge of IO. The Takahashi 2.8 is sharp as well, but the Zeiss Abbes just have a touch more contrast that you notice in the bands which just keeps you bringing them back.

I tried the Tak 2.8 with the barlow, but there is too much haze/cloud. I think this will be doable under clearer skies.

I kept watching until it "left the planet".

Awesome first light
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Old 25-08-2009, 02:29 AM
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astroron (Ron)
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Nice eyepieces but what telescope are you using
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  #5  
Old 25-08-2009, 08:58 AM
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It was first light for my AP 130 EDF GT
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