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Rev 123 - Dec 18, 2009-Jan 3, 2010 - Prometheus
Stu
post Dec 21 2009, 05:20 PM
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I was struck by how much images like this...

http://saturn.jpl.nasa.gov/multimedia/imag...5/N00148493.jpg

... remind me of the view through my 4.5" scope when I peer into it without the eyepiece. LOts of fascinating internal light reflections there...


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ugordan
post Dec 21 2009, 05:22 PM
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QUOTE (Stu @ Dec 21 2009, 06:20 PM) *
LOts of fascinating internal light reflections there...

Looks like someone's been hunting for Iapetan moons again... cool.gif


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peter59
post Dec 27 2009, 03:32 PM
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Prometheus at last seen at close range.
Attached Image

and
Attached Image
Reason for edit: Corrected Subtitle of thread


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Big_Gazza
post Dec 27 2009, 03:42 PM
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Raw close-up pics now (finally) available of Prometheus, courtesy of Rev 124

http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=210215
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=210303

I know i've been hanging out for close pics of this rock, being the last of the big(-ish) inner rocks to be imaged up close-ish (good pics already of Janus, Epimetheus & Pandora). I'll bet i'm not the only one smile.gif
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Bjorn Jonsson
post Dec 27 2009, 03:52 PM
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Now that Cassini is no longer orbiting in the ring plane there are some interesting images of the spokes:

http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=210366
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=210363
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=210360

Soon there will be exactly one Saturninan year from the Voyager 1 flyby.
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tedstryk
post Dec 27 2009, 03:56 PM
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Check out Enceladus!
http://saturn.jpl.nasa.gov/multimedia/imag...6/N00148932.jpg

and talk about high phase!

http://saturn.jpl.nasa.gov/multimedia/imag...6/W00062176.jpg


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volcanopele
post Dec 27 2009, 04:12 PM
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ROFLMAO, thank you for also posting the WAC view. I just about had a heart attack when I saw the NAC image.


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ugordan
post Dec 27 2009, 06:08 PM
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Awesome Prometheus images, a quick RGB composite from the first set:
Attached Image
Attached Image


EDIT: Added 2nd, lower phase set as well.


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volcanopele
post Dec 27 2009, 06:18 PM
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I'm still trying to deal with all these noise hits... darn you charged particles, why do you pain me so?


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The Singing Badg...
post Dec 27 2009, 11:30 PM
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Man, that is one ugly space rock. It looks like some kind of mutant tuber.
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ugordan
post Dec 27 2009, 11:33 PM
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It's not ugly. It's got character.


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nprev
post Dec 27 2009, 11:55 PM
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laugh.gif

It's also apparently got a lot of ring material deposition, though seemingly not as much as Atlas.


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ugordan
post Dec 28 2009, 12:05 AM
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And, not surprisingly, its craters appear to be more "eroded" or rather covered in dust than Pandora's craters.


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nprev
post Dec 28 2009, 12:14 AM
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You know, that's an interesting point. I wonder how much real erosion of surface features on these ring rocks does actually occur via this process vs. just coating everything.

Probably not much, but it's definitely a factor in play.


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tasp
post Dec 28 2009, 02:36 AM
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Perhaps we have an ongoing process of gradual deposition (precipitation?) interrupted by the occasional thwack of an impact knocking off most of it . . . . .

Or maybe mag field effects zorch some off when the field flips or Saturn passes thru the Jovian magneto tail.

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