Reprocessed - Ganymede crescent coming out of shadow

[iceman (Mike)]

Hi guys.

Damian Peach got a fabulous image while in Barbados, showing a crescent Ganymede as it disappeared into Jupiter's shadow.

It reminded me of my imaging session earlier this year (on the 26th March), where I captured images of Ganymede's crescent as it emerged from Jupiter's shadow.

I spent the last 2 days reprocessing the 15 avi's, as my technique has improved since then, and I redid the animation.

You can download the animation from here:
Jupiter, with Io transit and Ganymede crescent - 600k gif

If you've seen it before (back in March), press ctrl-F5 to reload the latest.

Attached are 2 of the better images from the animation.

Taken with my 10" dob, EQ platform, ToUcam + 5x Powermate.

The seeing fluctuated during the session thanks to passing clouds, so half of the frames are poorer quality.

Thanks for looking.

[Astroman (Andrew Wall)]

Looks good mike, nice image scale on the moon, your not wrong about the fluctuations in the seeing, still looks pretty good.

[Robert_T]

The detail you've squeezed out on Ganymede here is gob-smaking Mike. It really is on a par with a lot of my early Mars attempts from mid last year and has a very similar look to mars with the albedo features.

impressive

[matt]

Superlative work yet again Mike.

From capture through to processing, it's terrific stuff

[iceman (Mike)]

Thanks guys.

The one thing I noticed in reprocessing this one was the extra detail I got out of ganymede. In my original sequence of this session, ganymede was a nice disc but didn't have the albedo features. I think I just ran it through registax last time and didn't do any LR deconvolution on it, which I did this time.

I'm really happy to see the crescent of ganymede as the shadow of Jupiter obscures it, and how it comes out from behind to reveal the whole disc. And with Io looking 3D as it transits, it really makes it look like a 3D world out there.. which it is!

I was more careful this time in colour matching the individual images and aligning them for the animation. It's still not perfect but it's better than it was.

[Hammerman]

Not perfect to you.... but much better than a lot of us could do. Very well done, Mike! It's alwasy nice to see a good animation like this.