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Astronomy Picture of the Day -- Flying Past Neptune's Moon Triton
NASA ^ | August 26, 2014 | (see photo credit)

Posted on 08/28/2014 6:55:04 PM PDT by SunkenCiv

Explanation: What would it look like to fly past Triton, the largest moon of planet Neptune? Only one spacecraft has ever done this -- and now, for the first time, images of this dramatic encounter have been gathered into a movie. On 1989 August 25, the Voyager 2 spacecraft shot through the Neptune system with cameras blazing. Triton is slightly smaller than Earth's Moon but has ice volcanoes and a surface rich in frozen nitrogen. The first sequence in the video shows Voyager's approach to Triton, which, despite its unusual green tint, appears in approximately true color. The mysterious terrain seen under the spacecraft soon changed from light to dark, with the terminator of night soon crossing underneath. After closest approach, Voyager pivoted to see the departing moon, now visible as a diminishing crescent. Next July, assuming all goes well, the robotic New Horizons spacecraft will make a similar flight past Pluto, an orb of similar size to Triton.

August 26, 2014

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; neptune; science; triton; voyager2
[Credit: Voyager 2, JPL, NASA; ]Digital composition: Paul Schenk (LPI, USRA)

1 posted on 08/28/2014 6:55:04 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 08/28/2014 6:57:12 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Very nice. Quite different than any other moon in the solar system. Thanks,sunkenciv


3 posted on 08/28/2014 6:59:35 PM PDT by lbryce (Barack Obama:Misbegotten, Bastard Offspring of Satan and Medusa.)
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To: lbryce

What is an ice volcano?


4 posted on 08/28/2014 7:01:18 PM PDT by NutCrackerBoy
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To: NutCrackerBoy

Hillary.


5 posted on 08/28/2014 7:19:34 PM PDT by fieldmarshaldj (Resist We Much)
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To: SunkenCiv

Now THAT was cool. We got our money’s worth from the Voyagers.


6 posted on 08/28/2014 7:27:06 PM PDT by henkster (Do I really need a sarcasm tag?)
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To: henkster

We don’t make them like we used to.


7 posted on 08/28/2014 7:31:40 PM PDT by glyptol
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To: SunkenCiv

Awesome. Thanks.


8 posted on 08/28/2014 7:51:50 PM PDT by PGalt
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To: fieldmarshaldj
What is an ice volcano? -NutCrackerBoy

Hillary. -fieldmarshaldj

OMG I'm picturing her with icebergs flying out of her butt!

9 posted on 08/28/2014 9:51:17 PM PDT by NutCrackerBoy
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To: SunkenCiv
Trek-like GIF of the fly-by:

10 posted on 08/29/2014 9:15:07 AM PDT by mikrofon (APOD Bump)
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To: mikrofon

Nice job!


11 posted on 08/30/2014 12:33:12 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Just wow.


12 posted on 08/30/2014 12:39:26 PM PDT by Yardstick
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To: NutCrackerBoy

What is an ice volcano?

You know, like Bardabardabing in Iceland...


13 posted on 08/30/2014 12:43:05 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: SunkenCiv

Thanks… To outline the multi-step process, in case anyone might be interested:

– Captured the video from the source site as an 720p MP4 (also for the Library)
– Ran this through Windows Movie Maker; changed the video speed to 5X to get the total time under 10 secs
– Exported the result as the default WMV format
– Uploaded this to a public Automated GIF site (lots out there); saved the conversion locally with appropriate dimensions & file size
– Uploaded this file to a linkable site (e.g. Photobucket) for posting

Many other ways to skin the cat, I’m sure ;-)


14 posted on 08/30/2014 1:54:11 PM PDT by mikrofon (APOD Bump)
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To: tet68

15 posted on 09/03/2014 2:04:37 AM PDT by NutCrackerBoy
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