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Astronomy Picture of the Day -- Hickson 44 in Leo
NASA ^ | August 29, 2011 | (see photo credit)

Posted on 08/29/2011 12:16:02 AM PDT by SunkenCiv

Explanation: Scanning the skies for galaxies, Canadian astronomer Paul Hickson and colleagues identified some 100 compact groups of galaxies, now appropriately called Hickson Compact Groups. The four prominent galaxies seen in this intriguing telescopic skyscape are one such group, Hickson 44, about 100 million light-years distant toward the constellation Leo. The two spiral galaxies in the center of the image are edge-on NGC 3190 with its distinctive, warped dust lanes, and S-shaped NGC 3187. Along with the bright elliptical, NGC 3193 at the right, they are also known as Arp 316. The spiral in the upper left corner is NGC 3185, the 4th member of the Hickson group. Like other galaxies in Hickson groups, these show signs of distortion and enhanced star formation, evidence of a gravitational tug of war that will eventually result in galaxy mergers on a cosmic timescale. The merger process is now understood to be a normal part of the evolution of galaxies, including our own Milky Way. For scale, NGC 3190 is about 75,000 light-years across at the estimated distance of Hickson 44.

August 29, 2011

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; hickson44; science
[Image Credit & Copyright: Stephen Leshin]

1 posted on 08/29/2011 12:16:08 AM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

2 posted on 08/29/2011 12:17:13 AM PDT by SunkenCiv (It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
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To: SunkenCiv

That’s a pretty picture. Just look at all that galactic diversity! NGC 3190, NGC 3187, NGC 3193, and NGC 3185 look nothing like each other, but there they are, palling around together. How nice.


3 posted on 08/29/2011 2:45:16 AM PDT by TheOldLady (FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
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To: TheOldLady

Galactic multicultural diversity?


4 posted on 08/29/2011 2:56:32 AM PDT by ixtl (You live and learn. Or you don't live long.)
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To: SunkenCiv

I sure am enjoying these daily astronomy pictures! Space is beautiful, and its vastness is almost beyond comprehension. I’ve spent many nights peering through the telescope, taking in what’s out there. Simply amazing.

Kharis13


5 posted on 08/29/2011 3:26:12 AM PDT by Kharis13 (That noise you hear is our Founding Fathers spinning in their graves.)
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To: ixtl
Indeed. They set an example for the rest of us. We need more diversity. Our diversity is our strength.

If I need a </sarc> tag for you, you don't know me.

6 posted on 08/29/2011 3:36:01 AM PDT by TheOldLady (FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
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To: SunkenCiv

Wonderful!


7 posted on 08/29/2011 5:12:24 AM PDT by left that other site (Psalm 122:6)
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To: TheOldLady

I’m surprised NASA isn’t publishing pictures of galactic clusters where they are all lined up, facing east, praying together. You know, part of their Muslim outreach...


8 posted on 08/29/2011 5:25:09 AM PDT by ThunderSleeps (Stop obama now! Stop the hussein - insane agenda!)
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To: left that other site
Wonderful!

Not so much. Galactical miscegenation demonstrates the struggle between good and evil on a universal scale. The perfect integrity of each of these unique galaxies will be forever lost as they merge, pitiful. (For the uninitiated here's a /s.)

9 posted on 08/29/2011 5:28:19 AM PDT by Louis Foxwell (O assumes the trappings of the presidency, not its mantle. He is not presidential.)
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To: Louis Foxwell

Ha Ha!

You are probably right.


10 posted on 08/29/2011 5:32:27 AM PDT by left that other site (Psalm 122:6)
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To: ThunderSleeps

Yeah. Pipe down; you’ll give them ideas. ;-)


11 posted on 08/29/2011 5:38:51 AM PDT by TheOldLady (FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
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To: SunkenCiv

I saw this cluster of galaxies a few years ago on a starchart and it’s one of my ‘must sees’ each Spring when Leo pokes it’s head above the horizon.

The item on the far left (far right in the scope) is pretty dim visually, but, can be seen in a 10” scope.

The one in the middle has a nice write up in wikipedia:

http://en.wikipedia.org/wiki/NGC_3190

The one next to the star is very pretty.

The barred spiral is pretty dim too, and, about all you can see is the central bar.


12 posted on 08/29/2011 9:38:24 AM PDT by Conan the Librarian (The Best in Life is to crush my enemies, see them driven before me, and the Dewey Decimal System)
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To: SunkenCiv

So Pretty! Saved!


13 posted on 08/29/2011 2:21:29 PM PDT by DeoVindiceSicSemperTyrannis (Want to make $$$? It's easy! Use FR as a platform to pimp your blog for hits!!!)
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