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Astronomy Picture of the Day -- Rigel and the Witch Head Nebula
NASA ^ | November 01, 2012 | (see photo credit)

Posted on 11/01/2012 5:33:22 PM PDT by SunkenCiv

Explanation: Double, double toil and trouble; Fire burn, and cauldron bubble -- maybe Macbeth should have consulted the Witch Head Nebula. The suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion. More formally known as IC 2118, the Witch Head Nebula spans about 50 light-years and is composed of interstellar dust grains reflecting Rigel's starlight. In this cosmic portrait, the blue color of the Witch Head Nebula and of the dust surrounding Rigel is caused not only by Rigel's intense blue starlight but because the dust grains scatter blue light more efficiently than red. The same physical process causes Earth's daytime sky to appear blue, although the scatterers in Earth's atmosphere are molecules of nitrogen and oxygen. Rigel, the Witch Head Nebula, and gas and dust that surrounds them lie about 800 light-years away.

November 01, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; rigel; science; witchheadnebula
[Credit & Copyright: Rogelio Bernal Andreo (Deep Sky Colors)]

1 posted on 11/01/2012 5:33:22 PM PDT by SunkenCiv
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To: SunkenCiv
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2 posted on 11/01/2012 5:40:22 PM PDT by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
[singing] Witch Head woman, she got the Moon in her eyes...

3 posted on 11/01/2012 6:01:46 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Rigel always reminds me of Farscape.


4 posted on 11/01/2012 6:03:59 PM PDT by TheOldLady
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To: SunkenCiv

Looks like a croc to me!


5 posted on 11/01/2012 6:05:18 PM PDT by left that other site (Worry is the Darkroom that Develops Negatives.)
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To: SunkenCiv

Beautiful purple.
Thanks very much, Sunken Civ!


6 posted on 11/01/2012 6:06:01 PM PDT by onyx (FREE REPUBLIC IS HERE TO STAY! DONATE MONTHLY! IF YOU WANT ON SARAH PALIN''S PING LIST, LET ME KNOW)
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To: SunkenCiv

Beautiful...thank you.


7 posted on 11/01/2012 7:59:36 PM PDT by BlessingsofLiberty (Remember Brian Terry...)
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To: SunkenCiv

If you look real close.....about a third of the way up the nebula.....on the left....that’s me in my space cruiser. I put new rims on her this summer. They really shine.


8 posted on 11/01/2012 8:20:19 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: TheOldLady

I miss Farscape


9 posted on 11/03/2012 11:26:29 AM PDT by hattend (Firearms and ammunition...the only growing industries under the Obama regime.)
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To: hattend

I think you can get Farscape on Amazon.

Hubby and I have a copy. That and Firefly.

The TV-Serial producers keep killing the shows I like the best.

They’ve cancelled House and Sanctuary, the bastids.


10 posted on 11/03/2012 1:23:41 PM PDT by TheOldLady
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