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Astronomy Picture of the Day -- M57: The Ring Nebula
NASA ^ | April 20, 2012 | (see photo credit)

Posted on 04/20/2012 4:24:29 PM PDT by SunkenCiv

Explanation: Except for the rings of Saturn, the Ring Nebula (M57) is probably the most famous celestial band. Its classic appearance is understood to be due to perspective - our view from planet Earth looks down the center of a roughly barrel-shaped cloud of glowing gas. But expansive looping structures are seen to extend far beyond the Ring Nebula's familiar central regions in this intriguing composite of ground based and Hubble Space Telescope images with narrowband image data from Subaru. Of course, in this well-studied example of a planetary nebula, the glowing material does not come from planets. Instead, the gaseous shroud represents outer layers expelled from the dying, once sun-like star at the nebula's center. Intense ultraviolet light from the hot central star ionizes atoms in the gas. Ionized oxygen atoms produce the characteristic greenish glow and ionized hydrogen the prominent red emission. The central ring of the Ring Nebula is about one light-year across and 2,000 light-years away. To accompany tonight's shooting stars it shines in the northern constellation Lyra.

April 20, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; m57; science
[Credit: Credit: Composite Image Data: Subaru Telescope (NAOJ), Hubble Legacy Archive; Processing and additional imaging - Robert Gendler]


1 posted on 04/20/2012 4:24:31 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

Sorry, I muffed the shot yesterday. :'(


2 posted on 04/20/2012 4:26:43 PM PDT by SunkenCiv (FReepathon 2Q time -- https://secure.freerepublic.com/donate/)
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To: SunkenCiv

If I wasn’t in such a light polluted area, I would love to get a Dobs Telescope for these deep space beauties.


3 posted on 04/20/2012 4:30:07 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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To: SunkenCiv
Mesmerizing in the larger size! Thanks very much, Sunken Civ!
4 posted on 04/20/2012 4:32:55 PM PDT by onyx (SUPPORT FREE REPUBLIC, DONATE MONTHLY. If you want on Sarah Palin's Ping List, let me know.)
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To: SunkenCiv

looks like a cross between the catseye and eta carinae..

just imagine how quick ya could bake a pizza or calzone in one of them things? ;-)


5 posted on 04/20/2012 4:35:52 PM PDT by NormsRevenge
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To: SunkenCiv
Sorry, I muffed the shot yesterday. :'(

On the bright side there WAS a muff involved.

This pic is off the hook.

6 posted on 04/20/2012 4:54:07 PM PDT by bigheadfred (MY PET TAPEWORM (OBIWAN) IS AN INSANE MILITARY HATING LEFTIST)
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To: SunkenCiv

this doesn’t concern anyone’s anus, does it?


7 posted on 04/20/2012 4:56:40 PM PDT by the invisib1e hand (void where prohibited.)
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To: SunkenCiv

God said: “let it be and it was”! Wow!


8 posted on 04/20/2012 5:27:18 PM PDT by ForAmerica (Conservative Christian Black Man!)
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To: SunkenCiv

Really Excellent! Love it!


9 posted on 04/20/2012 5:31:13 PM PDT by left that other site
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To: mylife; SunkenCiv

A friend has a 32” Dobsonian that I saw that through.

I could swear I saw color. I know that’s not really possible but the image was so clear my mind might have filled in the blanks.

Please control yourselves with the obligatory clear mind comments.


10 posted on 04/20/2012 6:10:35 PM PDT by AZ .44 MAG (Repeal Obama)
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To: AZ .44 MAG

Attaching a digital CCD camera to the Dobs will pick up wavelength colors our eyes cant process.


11 posted on 04/20/2012 6:15:11 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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To: NormsRevenge
God's eye nebulae.


12 posted on 04/20/2012 6:18:22 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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All contributions are for the Current Quarter Expenses.


13 posted on 04/20/2012 6:53:10 PM PDT by RedMDer (https://support.woundedwarriorproject.org/default.aspx?tsid=93)
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To: SunkenCiv

“Ring Nebula is probably the most famous celestial band” Has Kenny G ever played with them? You can’t be really famous unless Kenny G has played with your band.


14 posted on 04/20/2012 7:01:54 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: AZ .44 MAG

:’D


15 posted on 04/20/2012 7:45:10 PM PDT by SunkenCiv (FReepathon 2Q time -- https://secure.freerepublic.com/donate/)
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To: blueunicorn6

The only track I can think of that I really like is “Wizard Island”, the title track, when he was a side man in The Jeff Lorber Fusion.


16 posted on 04/20/2012 7:46:02 PM PDT by SunkenCiv (FReepathon 2Q time -- https://secure.freerepublic.com/donate/)
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To: AZ .44 MAG
You probably did see some color with that big of an aperture.

I saw it through a 6" refractor, on an absolutely still, moonless and clear night, and I still had to use averted peripheral vision after night adapting my eyes for a couple of hours. It appeared like a tiny grey ghost image flickering in and out of view - but I saw it! LOL!

17 posted on 04/20/2012 8:08:36 PM PDT by Talisker (He who commands, must obey.)
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To: SunkenCiv

Love The Jeff Lorber Fusion.


18 posted on 04/20/2012 8:13:53 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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