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Voyager 2 imaging of Triton
angel1801
post Mar 7 2006, 04:15 PM
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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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tedstryk
post Mar 7 2006, 04:21 PM
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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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Decepticon
post Mar 7 2006, 11:26 PM
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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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t_oner
post Mar 8 2006, 09:31 AM
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QUOTE (Decepticon @ Mar 8 2006, 01:26 AM) *
Here are some of my favs... global views

And best of all


Thanks Decepticon smile.gif
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TritonAntares
post Mar 8 2006, 11:11 PM
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QUOTE (Decepticon @ Mar 8 2006, 12:26 AM) *


Lovely...
Beautiful... rolleyes.gif

But were has this orange hue gone?

Attached Image
Attached Image


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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tedstryk
post Mar 9 2006, 02:41 AM
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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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machi
post Jan 10 2010, 05:32 PM
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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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Stefan
post Jan 10 2010, 08:59 PM
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Two Triton color composites:

Attached Image
Attached Image
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machi
post Jan 11 2010, 11:02 AM
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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)
Attached File  TritonTSwmv8_2.avi ( 757.89K ) Number of downloads: 422
 


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Stefan
post Jan 11 2010, 03:49 PM
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Thanks, perhaps I'll find time to improve it.

Another color composite:
Attached Image

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tedstryk
post Jan 11 2010, 06:39 PM
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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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Ian R
post Oct 16 2010, 01:30 AM
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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:

Attached Image


The cropped region:

Attached Image


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:

Attached Image


Cut Two:

Attached Image


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DrShank
post Oct 16 2010, 04:35 PM
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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.


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Phil Stooke
post Oct 16 2010, 04:55 PM
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I agree. It was an interesting idea, but different cuts and moves might create different apparent craters.

Phil


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tedstryk
post Oct 19 2010, 04:16 PM
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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:

Attached Image


And the high-pass version:

Attached Image


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