Rev 123 - Dec 18, 2009-Jan 3, 2010 - Prometheus |
Rev 123 - Dec 18, 2009-Jan 3, 2010 - Prometheus |
Dec 21 2009, 05:20 PM
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#1
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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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Dec 21 2009, 05:22 PM
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#2
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
LOts of fascinating internal light reflections there... Looks like someone's been hunting for Iapetan moons again... -------------------- |
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Dec 27 2009, 03:32 PM
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#3
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Member Group: Members Posts: 568 Joined: 20-April 05 From: Silesia Member No.: 299 |
-------------------- Free software for planetary science (including Cassini Image Viewer).
http://members.tripod.com/petermasek/marinerall.html |
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Dec 27 2009, 03:42 PM
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#4
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Junior Member Group: Members Posts: 66 Joined: 8-November 05 From: Australia Member No.: 547 |
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 |
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Dec 27 2009, 03:52 PM
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#5
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IMG to PNG GOD Group: Moderator Posts: 2251 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
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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Dec 27 2009, 03:56 PM
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#6
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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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Dec 27 2009, 04:12 PM
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#7
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
ROFLMAO, thank you for also posting the WAC view. I just about had a heart attack when I saw the NAC image.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 27 2009, 06:08 PM
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#8
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Awesome Prometheus images, a quick RGB composite from the first set:
EDIT: Added 2nd, lower phase set as well. -------------------- |
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Dec 27 2009, 06:18 PM
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#9
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
I'm still trying to deal with all these noise hits... darn you charged particles, why do you pain me so?
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 27 2009, 11:30 PM
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#10
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Junior Member Group: Members Posts: 45 Joined: 11-March 05 From: Canada Member No.: 188 |
Man, that is one ugly space rock. It looks like some kind of mutant tuber.
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Dec 27 2009, 11:33 PM
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#11
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
It's not ugly. It's got character.
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Dec 27 2009, 11:55 PM
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#12
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
It's also apparently got a lot of ring material deposition, though seemingly not as much as Atlas. -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Dec 28 2009, 12:05 AM
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#13
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
And, not surprisingly, its craters appear to be more "eroded" or rather covered in dust than Pandora's craters.
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Dec 28 2009, 12:14 AM
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#14
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
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. -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Dec 28 2009, 02:36 AM
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#15
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Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
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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