My Assistant
Project, A pet project of mine.... |
Mar 23 2005, 05:33 PM
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![]() Interplanetary Dumpster Diver ![]() ![]() ![]() ![]() Group: Admin Posts: 4408 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
I have long had the dream of improving the lone closeup Voyager image of Proteus. Being Neptune's second largest moon, I always thought it a pity we don't have a good view of it. There is one multispectral set, taken from two or three million km, and a few slightly more distant clear filtered shots. But this lone frame is from only 144,000 km, with a resolution of 1.3 km/ pixel. Only Triton and Miranda technically have better resolution coverage (I am ignoring the moons of Saturn and Jupiter here). Problem is that it is terribly underexposed. I just wish there were two frames. It is amazing what you can do to reduce noise.
Here is the raw frame: ![]() Here is the best I have been able to do so far. I have created some artificial masks to act as multiple frame to artificially reduce grain: ![]() ![]() Anyone have any tips? I'd be curious to see what others could do with this. Ted [CODE] -------------------- |
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Mar 25 2005, 02:58 PM
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 3009 Joined: 30-October 04 Member No.: 105 |
Good work, Ted. I got the raw image and barely was able to see anything after twiddling with gamma/brightness/contrast.
Of interest, just below center, there appears to be a broad scrape/groove with a 5km boulder at the end. Possibly a low angle, low velocity impact? Or a cat in the clouds... --Bill -------------------- |
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Mar 26 2005, 03:26 AM
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![]() Interplanetary Dumpster Diver ![]() ![]() ![]() ![]() Group: Admin Posts: 4408 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
There does seem to be a raised area at the end of that groove. Far to big and too flat to be a boulder. I think, though, that the whole feature might be just a strange alignment of craters atop the remnants of previous craters. Sort of like this the way Proteus has a strange resemblace to a decayed tooth in this image, Voyager's lone multispectral set.
![]() QUOTE (Bill Harris @ Mar 25 2005, 02:58 PM)
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tedstryk Project Mar 23 2005, 05:33 PM
erwan Ted: No tips, alas, but i'm amazed with what y... Mar 23 2005, 06:56 PM
tedstryk Thanks. The thing that makes it really hard to de... Mar 23 2005, 11:01 PM
erwan in one word : BRAVO, Ted.... Exactly what amateurs... Mar 23 2005, 11:14 PM
MizarKey Wow, one more example of a huge crater taking up a... Mar 23 2005, 11:40 PM
ElkGroveDan QUOTE (tedstryk @ Mar 23 2005, 05:33 PM)Anyon... Mar 24 2005, 12:22 AM
tedstryk Actually, I used Photoshop too. There are quite a... Mar 24 2005, 12:38 AM
tedstryk Here are some other versions of the image.
Planet... Mar 24 2005, 01:32 AM![]() ![]() |
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