Rev 141 - Nov 20-Dec 10, 2010 - Hyperion and Enceladus E12 |
Rev 141 - Nov 20-Dec 10, 2010 - Hyperion and Enceladus E12 |
Dec 3 2010, 08:06 PM
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#46
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Junior Member Group: Members Posts: 74 Joined: 9-October 10 From: Victoria, BC Member No.: 5483 |
In the meantime, here's a four-frame clear filter mosaic: [attachment=23152:enceladus_mosaic.jpg] Wow, that is an absolutely gorgeous image! I love the ring in the background too! (EDIT: Oh, now I see the "cheat" that you used that Emily mentioned - the background was changing as the images were being taken so you've smoothed that out) |
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Dec 4 2010, 01:13 AM
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#47
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
(BTW, what's up with the UV1 filter on wheel 2? The images of Hyperion taken through that have lots of white speckles on them) Could be that it's a very 'dark' filter (i.e. it's bandpass is either narrow, or well outside the best efficiency of the ccd, or both) and thus requires long exposure times and thus the raw unprocessed imagery is prone to noise. Yes, that's it - the UV1 images are always long exposure images and thus noisy. All (or possibly most - I'm too lazy to check it) of the UV1 images are like this. BTW lovely mosaics and color composites by Ian. |
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Dec 5 2010, 08:44 AM
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#48
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
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Dec 7 2010, 08:12 PM
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#49
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Senior Member Group: Members Posts: 1074 Joined: 21-September 07 From: Québec, Canada Member No.: 3908 |
There is a long series of images of a Tethys-Dione mutual event on the Cassini raw images pages. These images are just begging for an animation. (No, sorry, I can't do it myself now, I've got work to do .)
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Dec 7 2010, 10:33 PM
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#50
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Senior Member Group: Members Posts: 1418 Joined: 26-July 08 Member No.: 4270 |
http://www.youtube.com/watch?v=Hm955AJ_yJ4
I made no effort to re-centre Dione (seemed a lot of effort for so many images). -------------------- -- Hungry4info (Sirius_Alpha)
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Dec 10 2010, 02:21 AM
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#51
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Here's my version, making full use of the R/G/B filtered images:
http://www.youtube.com/watch?v=gN62-at3Xm4 -------------------- |
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Dec 15 2010, 08:13 AM
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#52
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
I've re-compiled the video linked in my previous post based on a very good suggestion from Emily.
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Dec 15 2010, 08:31 AM
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#53
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Member Group: Members Posts: 399 Joined: 28-August 07 From: San Francisco Member No.: 3511 |
So gracious, love watching that, thanks
-------------------- 'She drove until the wheels fell off...'
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