mmcirvin: (Default)
mmcirvin ([personal profile] mmcirvin) wrote2005-03-10 01:35 am

OK, here's a color one before I go to bed

Wrinked and cracked Enceladus against the yellowish disc of Saturn

This is Enceladus against the disc of Saturn, a not-quite-true-color picture taken in infrared, green and ultraviolet light. A little misregistered around the edges, and I was unable to completely get rid of the ghosts of the dropouts induced by the effect they had on the raw images' JPEG compression. But it's nice.

[identity profile] mmcirvin.livejournal.com 2005-03-11 04:43 am (UTC)(link)
There are a lot of crescent-Tethys and crescent-Enceladus pictures up there now, some more distant shots of Tethys from yesterday that show another large crater that I think hasn't been imaged well up to now (it could be the big one next to Ithaca Chasma that Cassini caught a while back), and some more icon-sized shots of Mimas in classic Death Star pose (with Herschel away from the terminator). In some of them, the dark hemisphere of Mimas is noticeably darker than the dark background, which raises the question of what it's in front of; probably the night side of Saturn, could be the Milky Way, zodiacal light and/or E ring. I don't have time to play with them at the moment, but they're worth checking out.

[identity profile] mmcirvin.livejournal.com 2005-03-11 04:50 am (UTC)(link)
...Also, some of the later, smaller Enceladus pictures have a lot of Saturn-shine on the night hemisphere, and you can make out the tidal elongation of Enceladus just as with Mimas earlier, though it's nowhere near as extreme (Enceladus is a little further out). In the picture above you can't really see it because you're looking straight along the Enceladus-Saturn line.