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Astronomy Picture of the Day -- Polar Ring Galaxy NGC 2685
NASA ^ | March 14, 2014 | (see photo credit)

Posted on 03/14/2014 9:23:34 PM PDT by SunkenCiv

Explanation: NGC 2685 is a confirmed polar ring galaxy - a rare type of galaxy with stars, gas and dust orbiting in rings perpendicular to the plane of a flat galactic disk. The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring. Still, observed properties of NGC 2685 suggest that the rotating ring structure is remarkably old and stable. In this sharp view of the peculiar system also known as Arp 336 or the Helix galaxy, the strange, perpendicular rings are easy to trace as they pass in front of the galactic disk, along with other disturbed outer structures. NGC 2685 is about 50,000 light-years across and 40 million light-years away in the constellation Ursa Major.

March 14, 2014

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; arp336; astronomy; galaxy; haltonarp; helixgalaxy; ngc2685; polar; polarring; polarringgalaxy; ring; science
[Credit & Copyright: Ken Crawford]

1 posted on 03/14/2014 9:23:35 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The Big One

2 posted on 03/14/2014 9:25:12 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Beautiful


3 posted on 03/14/2014 9:25:37 PM PDT by blueyon (The U. S. Constitution - read it and weep)
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To: SunkenCiv

Put’s me in mind of the issues raised by Giordano Bruno in his dialogue concerning the Infinite Universe, as put before us recently by the eminent Dr. Tyson.

In particular it reminds me that Bruno’s “guess” as it was called, but which I am inclined to see as legitimate insight, was after all lacking something. Recall that it was only in the last, i.e. the 20th century that the existence and nature of galaxies was comprehended. It is significant that they were called “island universes” as it came to be realized that the extensive field of stars visible to us is in fact local to our galaxy, and it was only in the mid to late 1900’s that the “large scale” structure of the visible universe came into the view that we see today.

I have to say that these later developments only add to my appreciation of Bruno’s startling insight.


4 posted on 03/14/2014 10:11:33 PM PDT by dr_lew
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To: SunkenCiv
Why couldn't I have been born in a cool galaxy like that?
This galaxy sucks! It's so boring. There's nothing to do here.

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Just tapping my inner teenager ... carry on! ;^)

5 posted on 03/14/2014 11:05:00 PM PDT by TigersEye (Stupid is a Progressive disease.)
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To: TigersEye
Why couldn't I have been born in a cool galaxy like that?

But darling, you were born in a GRAND DESIGN galaxy. Everyone knows that they're the best!

6 posted on 03/14/2014 11:23:06 PM PDT by dr_lew
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To: dr_lew
Pretty astounding really. We think of some 14.5 billion light years as the size of the universe but 14.5 billion light years is only the universe we can see.

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7 posted on 03/15/2014 5:12:35 AM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: SunkenCiv

40 million light years away?

That would be BILLyuns and BILLyons of Miles!


8 posted on 03/15/2014 5:19:12 AM PDT by left that other site
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To: dr_lew
Well ... I've never heard of that. That sounds kinda cool.

But look at this polar ring galaxy. It looks kind of like some cosmic vacuum tube.

9 posted on 03/15/2014 12:46:59 PM PDT by TigersEye (Stupid is a Progressive disease.)
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