Jupiter animation - Ganymede transit
Taken by Alessio Lotito on April 7, 2017 @ Torino, Italy
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A short timelapse (57 frames) showing the transit of Ganymede in front of Jupiter over the course of an hour and a half. Considering the distance of 666 million km, seeing visible changes over the course of just minutes at such a low resolution gives the idea of the incredible speeds involved. Skywatcher Mak 102/1300 on Eq2 + Canon 60D. Videos stacked in Autostakkert 2 and processed with Registax 6, animation made in Photoshop. Sorry for the quality, but: 1) average to bad seeing 2) the 60D threw colour balance out the window most of the time (it's not really suited for such works I'm afraid) 3) it's just my third attempt at timelapses, hope to do more of those!
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Very cool!!
It is near opposition, so Ganymede and its shadow seem to be very close.
Another Galilean satellite seems to move to the left, probably far side of Jupiter.
Posted by shiram 2017-04-09 09:54:22
Yes that was Io passing behind Jupiter, unfortunately it was too faint to be correctly exposed on my 4, and the stacking was aligned on Jupiter so it ended up smeared in the frames. Also, I should have taken captures shorter than the 40 seconds each I used, thats already a length for which derotation is probably needed not to loose fine details.

Thanks!
Posted by aken_bosch 2017-04-09 11:40:18
Wow! Good job,really!! Thanks!
Posted by satieb123 2017-04-12 18:17:57
 
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