Voyager 2 imaging of Triton |
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Voyager 2 imaging of Triton |
 Mar 7 2006, 04:15 PM
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#1
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 Member  Group: Members Posts: 159 Joined: 4-March 06 Member No.: 694  |
I was just wondering if someone has "super enhanced" the Voyager 2 images of Neptune's largest moon Triton and made them available to the public? I've read about and seen it done on Voyager images of Saturn's moons. Considering there won't be an orbiter going to Neptune being launched for a long time, this could be very worth while idea.
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- Opening line from episode 13 of "Cosmos" |
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Mar 7 2006, 04:21 PM
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#2
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 Interplanetary Dumpster Diver Group: Admin Posts: 4405 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (angel1801 @ Mar 7 2006, 04:15 PM)  I was just wondering if someone has "super enhanced" the Voyager 2 images of Neptune's largest moon Triton and made them available to the public? I've read about and seen it done on Voyager images of Saturn's moons. Considering there won't be an orbiter going to Neptune being launched for a long time, this could be very worth while idea. I have been doing some work on Triton, slowly. Malmer had a really good Trition image as well. It is one of the best Voyager data sets in terms of coverage, but has some problems with smear and spacecraft motion. -------------------- |
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Mar 7 2006, 11:26 PM
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#3
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Senior Member Group: Members Posts: 1278 Joined: 25-November 04 Member No.: 114 |
Here are some of my favs... global views
http://astrogeology.usgs.gov/Projects/Brow...ifs/triton2.gif http://nssdc.gsfc.nasa.gov/imgcat/hires/vg2_1138639.gif And best of all |
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Mar 8 2006, 09:31 AM
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#4
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 Member Group: Members Posts: 106 Joined: 26-September 05 Member No.: 508 |
QUOTE (Decepticon @ Mar 8 2006, 01:26 AM) Here are some of my favs... global views And best of all Thanks Decepticon 
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 Mar 8 2006, 11:11 PM
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#5
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 Member Group: Members Posts: 288 Joined: 28-September 05 From: Orion arm Member No.: 516 |
QUOTE (Decepticon @ Mar 8 2006, 12:26 AM) Here are some of my favs... global views http://astrogeology.usgs.gov/Projects/Brow...ifs/triton2.gif http://nssdc.gsfc.nasa.gov/imgcat/hires/vg2_1138639.gif And best of all Lovely... Beautiful...  But were has this orange hue gone?
The orange, turquoise and violet colors were the most astonishing and impressive features, when I first saw the images in 1989: 'Wow, so far away from sun and then these colors.' Actually images from less distance didn't show them in this color strenght any more... Why? False color imaging? What are the natural colors of Triton? Bye. |
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Mar 9 2006, 02:41 AM
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#6
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Interplanetary Dumpster Diver Group: Admin Posts: 4405 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Looks to me like like it is a color balance issue. And, remember that since it is Voyager data, there is no red, so the color will be shifted with either Green or Orange substituted for red.
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Jan 10 2010, 05:32 PM
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#7
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 Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Result from cooperation with Ted Stryk. Triton animation from four Ted Stryk's processed images (from Voyager 2 WAC camera). Framerate is one frame per 2 seconds. Images are magnified 2x. Time from 1989-08-25T08:15:09.000 to 1989-08-25T08:39:09.000.
Download link is lower. Old animation with wrong colors was deleted. -------------------- |
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Jan 10 2010, 08:59 PM
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#8
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Junior Member Group: Members Posts: 52 Joined: 16-November 06 Member No.: 1364 |
Two Triton color composites:
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Jan 11 2010, 11:02 AM
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#9
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Very nice images Stefan! Especially second one. One of the best Triton crescent images which I ever seen. But try remove color noise from image (speckles in image). Best way is perhaps manually removal. Than this image will be perfect.
I send improved version of Triton animation. Past version had wrong colors (problems with colorspace in encoder).
Attached File(s)
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Jan 11 2010, 03:49 PM
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#10
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Junior Member Group: Members Posts: 52 Joined: 16-November 06 Member No.: 1364 |
Thanks, perhaps I'll find time to improve it.
Another color composite:
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Jan 11 2010, 06:39 PM
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#11
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Interplanetary Dumpster Diver Group: Admin Posts: 4405 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (machi @ Jan 11 2010, 11:02 AM) I send improved version of Triton animation. Past version had wrong colors (problems with colorspace in encoder). Excellent work animating this! -------------------- |
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Oct 16 2010, 01:30 AM
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#12
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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 often wondered which Voyager picture Candy Hansen used in the following video to demonstrate how tectonic activity may have altered Triton's surface:
http://www.youtube.com/watch?v=yy2iscggebI Well, I've found it -- it's a crop of image c1139623.png:
The cropped region:
In the video linked above, Ms. Hansen disects the image twice, moving the resultant pieces to reveal an ancient and degraded impact feature: Cut One:
Cut Two:
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Oct 16 2010, 04:35 PM
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#13
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 Member Group: Members Posts: 207 Joined: 6-March 07 From: houston, texas Member No.: 1828 |
i had forgotten about this idea long ago. interesting but the difficulty has been that any number of cuts and rearrangements can be made on this surface and none are truly unique or diagnostic. this terrain is not easy to work on but it is comprised of lots of adjacent closed and partly open circular features of similar size, a characteristic of diapirism (think salt domes or convection) not impact craters.
-------------------- Dr. Paul Schenk, Lunar and Planetary Institute, Houston TX
http://stereomoons.blogspot.com; http://www.youtube.com/galsat400; http://www.lpi.usra.edu/science/schenk/ |
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Oct 16 2010, 04:55 PM
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#14
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Solar System Cartographer Group: Members Posts: 10256 Joined: 5-April 05 From: Canada Member No.: 227 |
I agree. It was an interesting idea, but different cuts and moves might create different apparent craters.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Oct 19 2010, 04:16 PM
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#15
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Interplanetary Dumpster Diver Group: Admin Posts: 4405 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
I played around with it when I was working on the images for this post and noticed the fact that multiple alignments seemed to work. http://planetimages.blogspot.com/2009/08/m...ton-images.html
By the way, here is my version of the last set before Triton filled the frame:
And the high-pass version:
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