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Astronomy Picture of the Day -- Stephan's Quintet
NASA ^ | February 25, 2012 | (see photo credit)

Posted on 02/25/2012 7:44:12 AM PST by SunkenCiv

Explanation: The first identified compact galaxy group, Stephan's Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only four of these five galaxies are actually locked in a cosmic dance of repeated close encounters. The odd man out is easy to spot, though. The interacting galaxies, NGC 7319, 7318A, 7318B, and 7317 have an overall yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. But the predominantly bluish galaxy, NGC 7320, is closer, just 40 million light-years distant, and isn't part of the interacting group. Stephan's Quintet lies within the boundaries of the high flying constellation Pegasus. At the estimated distance of the quartet of interacting galaxies, this field of view spans about 500,000 light-years. However, moving just beyond this field, above and to the left, astronomers can identify another galaxy, NGC 7320C, that is also 300 million light-years distant. Of course, including it would bring the interacting quartet back up to quintet status.

February 25, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; ngc7317; ngc7318a; ngc7318b; ngc7319; ngc7320; ngc7320c; pegasus; science
[Image Data: Hubble Legacy Archive, ESA, NASA;Processing: Al Kelly]

1 posted on 02/25/2012 7:44:14 AM PST by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

2 posted on 02/25/2012 7:45:54 AM PST by SunkenCiv (FReep this FReepathon!)
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To: SunkenCiv

Is the stars and galaxies just the right height and color for Moonbeam Michigan Mittens ?


3 posted on 02/25/2012 7:48:35 AM PST by American Constitutionalist (The fool has said in his heart, " there is no GOD " ..)
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To: SunkenCiv

Nice photo. Observed them once with the help of a very large Dobsonian.


4 posted on 02/25/2012 8:26:47 AM PST by ILS21R (Never give up.)
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To: SunkenCiv

Five galaxies locked in a cosmic dance of close encounters? Oh, The Bump! I remember The Bump! Great dance! Kind of suggestive, though. Wait a minbute.....do those galaxies have clothes on? Astronomy porn? You should be ashamed of yourself. Moderator! Moderator! SunkenCiv is showing dirty pictures again!


5 posted on 02/25/2012 8:54:23 AM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: SunkenCiv

Do they take requests?

I’d like “Stardust” by Hoagy Carmichael!


6 posted on 02/25/2012 9:33:51 AM PST by left that other site
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To: reed13k

Bfl


7 posted on 02/25/2012 10:42:45 AM PST by reed13k (For evil to triumph it is only necessary for good men to do nothing.)
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To: SunkenCiv
Stefan's Quintet famously appears in the opening of It's A Wonderful Life, as described here.
8 posted on 02/25/2012 10:47:08 AM PST by dr_lew
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