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Astronomy Picture of the Day -- One-Armed Spiral Galaxy NGC 4725
NASA ^ | May 30, 2013 | (see photo credit)

Posted on 05/30/2013 2:48:35 PM PDT by SunkenCiv

Explanation: While most spiral galaxies, including our own Milky Way, have two or more spiral arms, NGC 4725 has only one. In this sharp color composite image, the solo spira mirabilis seems to wind from a prominent ring of bluish, newborn star clusters and red tinted star forming regions. The odd galaxy also sports obscuring dust lanes a yellowish central bar structure composed of an older population of stars. NGC 4725 is over 100 thousand light-years across and lies 41 million light-years away in the well-groomed constellation Coma Berenices. Computer simulations of the formation of single spiral arms suggest that they can be either leading or trailing arms with respect to a galaxy's overall rotation. Also included in the frame, a more traditional looking spiral appears as a smaller background galaxy.

May 30, 2013

TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; comaberenices; milkyway; ngc4725; science
[Image Data: Subaru Telescope (NAOJ), Hubble Space Telescope; Additional Color data: Adam Block, Bob Franke, Maurice Toet; Assembly and Processing: Robert Gendler]

1 posted on 05/30/2013 2:48:35 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The big one.

2 posted on 05/30/2013 2:50:28 PM PDT by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

Shows how insignificant earth is. And I guess us.

3 posted on 05/30/2013 2:55:27 PM PDT by SkyDancer (Live your life in such a way that the Westboro church will want to picket your funeral.)
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To: SunkenCiv

One armed? Maybe it is a pirate galaxy.

4 posted on 05/30/2013 2:55:41 PM PDT by 17th Miss Regt
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To: 17th Miss Regt

I’m looking for a one-armed galaxy that killed my wife.

5 posted on 05/30/2013 2:58:39 PM PDT by DannyTN
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To: SkyDancer

Pretty amazing innit?

6 posted on 05/30/2013 3:27:35 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
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