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Astronomy Picture of the Day -- Messier 109
NASA ^ | May 23, 2013 | (see photo credit)

Posted on 05/23/2013 3:51:36 AM PDT by SunkenCiv

Explanation: Beautiful barred spiral galaxy M109, 109th entry in Charles Messier's famous catalog of bright Nebulae and Star Clusters, is found just below the Big Dipper's bowl in the northern constellation Ursa Major. In telescopic views, its striking central bar gives the galaxy the appearance of the Greek letter "theta", θ, a common mathematical symbol representing an angle. Of course M109 spans a very small angle in planet Earth's sky, about 7 arcminutes or 0.12 degrees. But that small angle corresponds to an enormous 120,000 light-year diameter at the galaxy's estimated 60 million light-year distance. The brightest member of the now recognized Ursa Major galaxy cluster, M109 (aka NGC 3992) is joined by three spiky foreground stars strung out across this frame. The three small, fuzzy bluish galaxies also on the scene, identified left to right as UGC 6969, UGC 6940 and UGC 6923, are possibly satellite galaxies of the larger M109.

May 23, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; bigdipper; m109; messierobject; messierobjects; ngc3992; science; ugc6923; ugc6940; ugc6969; ursamajor
[Credit & Copyright: Bob Franke]

1 posted on 05/23/2013 3:51:36 AM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
the big one.

2 posted on 05/23/2013 3:53:51 AM PDT by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
Whoops.

3 posted on 05/23/2013 3:55:48 AM PDT by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

Beautiful!

Thank You.


4 posted on 05/23/2013 4:10:00 AM PDT by gortklattu (God knows who is best, everybody else is making guesses - Tony Snow)
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To: SunkenCiv

5 posted on 05/23/2013 4:20:32 AM PDT by JoeProBono (Mille vocibus imago valet;-{)
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To: SunkenCiv

It’s Bigger...

But is it Messier?


6 posted on 05/23/2013 4:50:20 AM PDT by left that other site ((Ban the ubiquitous and deadly solvent, Di-hydrogen monoxide!!!))
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To: SunkenCiv

Happy Birthday, ya big, good-lookin’ hunk!

And many more, my dear friend.


7 posted on 05/23/2013 6:28:28 AM PDT by TheOldLady
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To: SunkenCiv

When I was a kid, I was told that finding this bugger would be very hard, because it’s kind of faint.

Those folks were wrong.

It sits just outside the bottom of the bowl of the Big Dipper, near Gamma UMa. A rewarding find.


8 posted on 05/23/2013 7:25:03 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: left that other site

You think that’s Messier - you should see my kids’ rooms.


9 posted on 05/23/2013 7:26:17 AM PDT by MrB (The difference between a Humanist and a Satanist - the latter admits whom he's working for)
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To: MrB

Ha Ha Ha


10 posted on 05/23/2013 8:14:26 AM PDT by left that other site (You Shall Know the Truth, and the Truth Shall Set You Free...John 8:32)
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To: SunkenCiv

So it’s off the corner of the big dipper, how much farther away? In big dipper pics I cannot see 109.


11 posted on 05/24/2013 5:30:28 AM PDT by VaRepublican (I would propagate taglines but I don't know how. But bloggers do.)
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