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Grand Finale part 1, F ring orbits
nprev
post Jan 27 2017, 03:12 AM
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ADMIN NOTE: Moved 8 posts regarding possible future ring missions to a dedicated thread for that topic.


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Phil Stooke
post Feb 1 2017, 04:51 PM
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Wow, check out Epimetheus here. This just in!

http://saturnraw.jpl.nasa.gov/multimedia/i...7/N00275739.jpg

People pondering the origin of the grooves of Phobos will need to think about this.

Phil


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charborob
post Feb 1 2017, 06:38 PM
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Mosaic of two images of Epimetheus:
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Explorer1
post Feb 1 2017, 07:17 PM
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The same grooves on an object about 5 x the radius of Phobos, and made of ice rather than rock... how bizarre.

New Mimas Saturnshine images are down as well!
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machi
post Feb 1 2017, 08:12 PM
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It looks that Epimetheus is another body in the Solar System with dune-like features on its surface (look at central lower part of this image).
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jasedm
post Feb 1 2017, 08:41 PM
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QUOTE (Phil Stooke @ Feb 1 2017, 04:51 PM) *
People pondering the origin of the grooves of Phobos will need to think about this.


Good point Phil - the two look visually analogous. I wonder if it's anything to do with these small bodies being at or near the Roche limit?

The Mimas images are beautiful too - this phase angle really shows up the fact that Mimas is largely water ice rather than 'rock'

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JRehling
post Feb 1 2017, 09:47 PM
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Epimetheus really looks like two parts Phobos (the grooves and shape), one part Eros (the bicolored slopes).

It feels like we're getting close to something like a phase-state diagram of small bodies. Something like escape velocity on one axis and whatever else explains the varied nature of these places on the other axis/axes. It's remarkable how varied they are, but we're seeing repetitions of each phenomenon; the causes should start to become clearer.
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nprev
post Feb 2 2017, 05:30 AM
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Amazing views.

Looks like there may be a few collapse pits in addition to craters. Reminds me a bit of a cometary surface, actually.


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Therion
post Feb 2 2017, 10:38 PM
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Some flyby gifs:





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Adam Hurcewicz
post Feb 8 2017, 05:50 PM
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Color image of Daphnis from 2017-02-06 21:05 (UTC)

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Phil Stooke
post Feb 28 2017, 01:24 AM
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Some very nice images of Epimetheus recently. Here are two showing lots of grooves. I have brightened the area illuminated by Saturn to hint at what the raw data will show us when it arrives in PDS. one image is almost entirely lit by Saturn rather than the Sun.

Phil

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... because the Solar System ain't gonna map itself.

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NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
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wildespace
post Mar 4 2017, 04:18 PM
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Some great Mimas closeups in the newest raw images! Looking forward to colour composites from you excellent lot.

Here's a quick RGB composite from yours truly, with some cleaning up of the artifact, although it's still not perfect:

Attached Image


That's no space station, it's one heavily cratered moon!


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Ian R
post Mar 9 2017, 11:36 AM
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Incredible new views of Pan, and its razor-thin equatorial bulge!

Attached Image

North is to the upper-right.

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Staring face-on at the north pole.

Edit: Thanks to Dr. Phil for pointing out my north/south confusion.


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Ian R
post Mar 9 2017, 11:38 AM
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Attached Image

Medium range view, showing the full extent of the Encke Division.


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Ian R
post Mar 9 2017, 12:55 PM
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Another medium range view, bore-sighted on the moon's north pole:

Attached Image


Edit: Thanks to Dr. Phil for pointing out my north/south confusion.


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