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Rev 123 - Dec 18, 2009-Jan 3, 2010 - Prometheus
ElkGroveDan
post Jan 28 2010, 02:58 PM
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QUOTE (Phil Stooke @ Jan 28 2010, 06:50 AM) *
Here's a hint of what's hiding in the shadows...


Aha! I KNEW it! Saturn's small moons are covered in jpeg compression artifacts!


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Phil Stooke
post Jan 28 2010, 04:41 PM
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A cleaned-up view of the end facing the F ring. There's a hint of lineations near the bottom, and a smooth area in the middle. I expected a smoother surface.

Phil

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CAP-Team
post Jan 28 2010, 08:08 PM
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Looks like a ringshadow!

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Ian R
post Jan 28 2010, 08:32 PM
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Here's an animation consisting of six NAC frames that show the shadow of the F-ring moving across Prometheus. Some spacecraft movement is evident too.

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Stu
post Jan 28 2010, 08:38 PM
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QUOTE (Ian R @ Jan 28 2010, 08:32 PM) *
Some spacecraft movement is evident too.


That wasn't 'spacecraft movement', that was the shock wave from my jaw hitting the floor. Every time I think "That's one of the coolest things I've seen on UMSF!" someone posts something like that...!

The wonders we're seeing... just incredible... smile.gif


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elakdawalla
post Jan 28 2010, 08:48 PM
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That's not Prometheus, that's a beating heart ohmy.gif


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dilo
post Jan 28 2010, 08:55 PM
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Color composition from images N00150201/202/203 (respectively clean, Red and Blue filters); on the right weak illumination is enhanced.
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helvick
post Jan 28 2010, 09:00 PM
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I need a new word, Awesome just doesn't cut it anymore. Out of curiosity have there been any other examples of ring shadows on Moons captured before?
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volcanopele
post Jan 28 2010, 09:25 PM
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QUOTE (helvick @ Jan 28 2010, 02:00 PM) *
I need a new word, Awesome just doesn't cut it anymore. Out of curiosity have there been any other examples of ring shadows on Moons captured before?

http://ciclops.org/view/5818/Ring_Shadows_on_Janus
http://photojournal.jpl.nasa.gov/catalog/PIA10469
http://nssdc.gsfc.nasa.gov/imgcat/html/obj...g1_3494245.html


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elakdawalla
post Jan 28 2010, 09:26 PM
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Tremendous. And yes ring shadows have been seen on moons before, both by Cassini and Voyager.
http://www.planetary.org/blog/article/00002078/


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Ian R
post Jan 28 2010, 09:30 PM
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Epimetheus as seen by Voyager 1:

http://en.wikipedia.org/wiki/File:Epimetheus_moon.jpg

Janus as seen by Cassini:

http://photojournal.jpl.nasa.gov/catalog/PIA11694


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Patteroast
post Jan 29 2010, 05:25 AM
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Yay! Glad to be getting really good views of Prometheus finally. It seems to be the last of the bigger rocks that needed it.

The Aegaeon images definitely seem to show some shape. Elongated, but then again they all are. laugh.gif

http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=211946

(Edit: D'oh, I see now that Aegaeon's been discussed in the Cassini Raws thread already.)
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dilo
post Jan 30 2010, 03:02 PM
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An "extended color" composition from N00150212+214+215 (filters G, IR3 and UV respectively).
Attached Image

Ring shadow colors are probably a timing artifact...


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Ian R
post Mar 20 2010, 11:36 PM
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http://photojournal.jpl.nasa.gov/catalog/PIA12593

Here's a normal and enhanced version of the newly released image:

Attached Image


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machi
post Jan 16 2011, 10:25 PM
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Prometheus flyby animation.
Timewarp 200×.
Attached File(s)
Attached File  Prometheus200x.avi ( 593.34K ) Number of downloads: 393
 


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