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Contains:  Solar system body or event
Jupiter Animation with Ganymede and Io 9-25-2023, walkman

Jupiter Animation with Ganymede and Io 9-25-2023

Acquisition type: Lucky imaging

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Description

Ganymede had a grazing occultation by Jupiter last Sunday (9-24/25).  From my vantage point at the VIS on Mauna Kea, the occultation began while Jupiter was very low.  I had planned to start imaging around mid-occultation while Jupiter was still only 27 degrees altitude.  But I had spent more time on Saturn than I had planned so Ganymede had just emerged from behind Jupiter by the time I got set up.

C8 with Siebert 1.5x barlow and Player One Uranus-C planetary camera.  I began the capture sequence at 11:04pm HST/0904 UTC using 120 sec video captures and 120 sec delay.  The actual delay was longer than 120 sec because SharpCap had to write buffered frames before it began the programmed delay.  The camera was capturing over 15K frames per exposure.  I ended the session at 2:06am HST/1204 UTC shortly after Io began its transit across Jupiter.

Stacked 3500 frames for each of the 47 individual videos in AutoStakkert!3, sharpened them in RegiStax6 and then used PIPP to make the animation.  Seeing ranged from average to very good, especially as Jupiter rose higher in the sky as the session continued.

I'm quite pleased with the new Uranus-C camera after this first outing.

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