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Astronomy Picture of the Day -- Ringside with Titan and Dione
NASA ^ | January 05, 2012 | (see photo credit)

Posted on 01/05/2012 6:45:53 PM PST by SunkenCiv

Explanation: Orbiting in the plane of Saturn's rings, Saturnian moons have a perpetual ringside view of the gorgeous gas giant planet. Of course, while passing near the ring plane the Cassini spacecraft also shares their stunning perspective. The rings themselves can be seen slicing across the middle of this Cassini snapshot from May of last year. The scene features Titan, largest, and Dione, third largest moon of Saturn. Remarkably thin, the bright rings still cast arcing shadows across the planet's cloud tops at the bottom of the frame. Pale Dione is about 1,100 kilometers across and orbits over 300,000 kilometers from the visible outer edge of the A ring. Dione is seen through Titan's atmospheric haze. At 5,150 kilometers across, Titan is about 2.3 million kilometers from Cassini, while Dione is 3.2 million kilometers away.

January 05, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; dionecassini; saturn; science; titan
[Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA]

1 posted on 01/05/2012 6:46:03 PM PST by SunkenCiv
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To: SunkenCiv

Nice pic! As always.


2 posted on 01/05/2012 6:48:22 PM PST by KoRn (Department of Homeland Security, Certified - "Right Wing Extremist")
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

One last reminder:
Best Short Astronomy Videos: APOD editor to speak in New York City on Friday, January 6

3 posted on 01/05/2012 6:49:33 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: SunkenCiv

Are there liberals on Titan?


4 posted on 01/05/2012 6:50:02 PM PST by RockinRight (If you're waiting to drink until you find pure water, you're going to die of dehydration.)
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To: SunkenCiv

Magnificent! thanks!


5 posted on 01/05/2012 6:59:38 PM PST by left that other site
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To: KoRn

It’s pretty cool lookin’. Other than the physical drawbacks to long-term microgravity, spending time aboard a station orbiting Saturn would have to be right up there on both the vocation and avocation lists. :’)


6 posted on 01/05/2012 7:05:30 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: SunkenCiv

Looks fake. But, since it’s real, great pic!


7 posted on 01/05/2012 7:06:02 PM PST by Engraved-on-His-hands
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To: SunkenCiv

Interesting story about the search for moons around exoplanets.

http://www.space.com/14141-alien-planets-moons-life-computer-simulations.html


8 posted on 01/05/2012 7:08:22 PM PST by cripplecreek (Stand with courage or shut up and do as you're told.)
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To: SunkenCiv
I had a little trouble picturing the ring shadows. This raw image from around the same time makes it a easier since it shows the rim of Saturn's disk, plus you can see detail on Titan's surface in this shot. ( I searched the raw image gallery for TITAN as target of the NARROW ANGLE camera for dates 05/01/2011 thru 05/31/2011 . )


9 posted on 01/05/2012 7:08:38 PM PST by dr_lew
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To: SunkenCiv; cripplecreek; dr_lew

Thanks. WOW!


10 posted on 01/05/2012 8:05:22 PM PST by PGalt
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To: SunkenCiv

I’d hang that on my wall. It’s at least as good as any “modern” art, and the fact that it’s a photograph makes it infinitely cooler.


11 posted on 01/05/2012 8:28:14 PM PST by Little Pig (Vi Veri Veniversum Vivus Vici.)
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Titan’s atmosphere is about 1.19 times as massive as Earth’s overall and includes Methane & Ethane. There are also trace amounts of other hydrocarbons, such as ethane, diacetylene, methylacetylene, acetylene and propane. Titan’s atmosphere is the only dense, nitrogen-rich atmosphere in the Solar System aside from the Earth’s.

So there is a hydrocarbon rich body larger than our own moon & the planet Mercury. Why is this not evidence that oil & gas have nothing to with ancient biological activity. If true it could render the theory of “peak oil” null & void.


12 posted on 01/05/2012 8:56:50 PM PST by RC51
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To: RC51

Are you telling us there is oil and gas on Titan? OMG! If this doesn’t get the space program going again, nothing will. (Tongue firmly embedded in cheek.)


13 posted on 01/06/2012 5:46:59 AM PST by ixtl ( You live and learn. Or you don't live long.)
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To: Engraved-on-His-hands

You’re right it does. I wonder why? But yes, cool image. As always.


14 posted on 01/06/2012 9:56:54 AM PST by brytlea (An ounce of chocolate is worth a pound of cure)
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To: RockinRight

No, but I can’t think of a better place to send ‘em all. :’)


15 posted on 01/06/2012 2:31:50 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: cripplecreek

Thanks, and I hope that’s a potential X-Planets topic for FR.


16 posted on 01/06/2012 2:33:15 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: dr_lew

Thanks!


17 posted on 01/06/2012 2:33:24 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: left that other site; PGalt; Little Pig

Thanks for the kind remarks!


18 posted on 01/06/2012 2:34:07 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: Engraved-on-His-hands; brytlea

It’s an “autumn” complexioned planetary system. :’)


19 posted on 01/06/2012 2:34:07 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: RC51; ixtl

Thanks RC51, here’s a keyword related to your excellent post.

http://www.freerepublic.com/tag/thomasgold/index


20 posted on 01/06/2012 2:34:45 PM PST by SunkenCiv (Merry Christmas, Happy New Year! May 2013 be even Happier!)
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To: SunkenCiv

Aha, well, I hope it always wears the proper make up and clothing colors to compliment it’s tone! Never EVER should it wear pink! :)


21 posted on 01/06/2012 3:15:43 PM PST by brytlea (An ounce of chocolate is worth a pound of cure)
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