Rev 141 - Nov 20-Dec 10, 2010 - Hyperion and Enceladus E12 |
Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images  |
Rev 141 - Nov 20-Dec 10, 2010 - Hyperion and Enceladus E12 |
 Dec 2 2010, 07:37 AM
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#31
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 Junior Member  Group: Members Posts: 49 Joined: 9-October 10 From: Victoria, BC Member No.: 5483  |
I've put together a sequence of images of Hyperion (false colour, from the IR/Green/UV images) from the November 2010 sequence that you guys might appreciate
 . I've also written an article about the images and Hyperion on my Science blog!
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Dec 2 2010, 09:37 AM
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#32
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 Member Group: Members Posts: 513 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
QUOTE (EDG @ Dec 2 2010, 04:29 AM)  Did you put that together? I'd like to mention/link to it on my blog if I could. Yes, that's mine: you're more than welcome to use it on your blog. As it happens, I've just produced a slightly better colorized version too: http://www.youtube.com/watch?v=U5VfYDYL3rA -------------------- |
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Dec 2 2010, 09:49 AM
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#33
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Member Group: Members Posts: 513 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
The Enceladan horizon from 51 kilometres above the surface:
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=230082 -------------------- |
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Dec 2 2010, 10:01 AM
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#34
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Junior Member Group: Members Posts: 49 Joined: 9-October 10 From: Victoria, BC Member No.: 5483 |
QUOTE (Ian R @ Dec 2 2010, 01:37 AM) Yes, that's mine: you're more than welcome to use it on your blog. As it happens, I've just produced a slightly better colorized version too: http://www.youtube.com/watch?v=U5VfYDYL3rA Great, thanks! I've updated the link on my blog to it as well. QUOTE (Ian R @ Dec 2 2010, 01:49 AM) The Enceladan horizon from 51 kilometres above the surface:
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=230082 Blimey, that's cutting it close! 
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Dec 2 2010, 10:07 AM
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#35
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Junior Member Group: Members Posts: 49 Joined: 9-October 10 From: Victoria, BC Member No.: 5483 |
Nice new one of Enceladus over the rings (or maybe the shadow of the rings on Saturn?):
 http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=230086 I think something weird going on here (taken with CL1 and CL2):  http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=230114 Compare that with this (same filters):  http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=230116 It looks to me like the first image has more specular reflection (and contrast) in it? Is that just down to different exposure lengths, or is something else going on? Or is it just an illusion? |
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Dec 2 2010, 11:12 AM
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#36
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 Senior Member Group: Moderator Posts: 2823 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
It is just a different stretch used by the JPL raw images page. The first image has fewer pixels on Enceladus' night side so the black level is set at a higher I/F than in the second 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 2 2010, 04:19 PM
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#37
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Senior Member Group: Members Posts: 4587 Joined: 5-April 05 From: Canada Member No.: 227 |
Very serious case of deja vu with this image:
http://saturn.jpl.nasa.gov/multimedia/imag...5/N00165320.jpg Doesn't the terminator region look like the well-known corona on Miranda? I think so. Phil -------------------- ... because the Solar System ain't gonna map itself.
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Dec 2 2010, 05:26 PM
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#38
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Member Group: Members Posts: 513 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Here's a IR/UV/GRN combo, with the saturation increased, and the gamma decreased:
The small orange splotch that appears half way up, on the far left of the image, appears to be a real feature; it's very prominent in the UV image, and faintly visible in the GRN filter too. -------------------- |
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Dec 2 2010, 07:27 PM
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#39
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 Senior Member Group: Members Posts: 3538 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (Ian R @ Dec 2 2010, 06:26 PM) The small orange splotch that appears half way up, on the far left of the image, appears to be a real feature Sorry, that's a flatfield effect. Another dust ring effect or similar. -------------------- |
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Dec 3 2010, 01:32 PM
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#40
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Member Group: Members Posts: 513 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Gordan,
I stand corrected!  It was the differing visibility of this feature in the individual filters that threw me: a quick check of several different UV-filtered images confirm that it is indeed an artefact.In the meantime, here's a four-frame clear filter mosaic:
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Dec 3 2010, 02:08 PM
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#41
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Senior Member Group: Members Posts: 3538 Joined: 1-October 05 From: Croatia Member No.: 523 |
Nice!
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Dec 3 2010, 05:30 PM
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#42
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 Interplanetary Dumpster Diver Group: Moderator Posts: 4061 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (Phil Stooke @ Dec 2 2010, 04:19 PM) Very serious case of deja vu with this image: http://saturn.jpl.nasa.gov/multimedia/imag...5/N00165320.jpg Doesn't the terminator region look like the well-known corona on Miranda? I think so. Phil It is uncanny... -------------------- |
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Dec 3 2010, 06:15 PM
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#43
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 Bloggette par Excellence Group: Admin Posts: 3982 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
QUOTE (Ian R @ Dec 3 2010, 05:32 AM) In the meantime, here's a four-frame clear filter mosaic: Great stuff, Ian. I tried to put that one together but couldn't figure out how to deal with Saturn's shifting position. Your cheat is quite elegant!-------------------- |
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Dec 3 2010, 07:44 PM
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#44
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 Member Group: Members Posts: 662 Joined: 9-February 07 Member No.: 1700 |
Ian, that's a great composite! thanks for posting it
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Dec 3 2010, 07:52 PM
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#45
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Senior Member Group: Members Posts: 1108 Joined: 14-October 05 From: Seattle Member No.: 530 |
QUOTE (Phil Stooke @ Dec 2 2010, 11:19 AM) Doesn't the terminator region look like the well-known corona on Miranda? I think so. Hey, look at that, Miranda is hypothesized to have once been in a 3:1 resonance with Umbriel and had more tidal heating. Good captioned version of the photo here: http://nssdc.gsfc.nasa.gov/imgcat/html/obj...g2_2684620.html |
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