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Astronomy Picture of the Day -- Ou4: A Giant Squid Nebula
NASA ^ | July 18, 2014 | (see photo credit)

Posted on 07/19/2014 4:41:59 AM PDT by SunkenCiv

Explanation: A mysterious, squid-like apparition, this nebula is very faint, but also very large in planet Earth's sky. In the mosaic image, composed with narrowband data from the 2.5 meter Isaac Newton Telescope, it spans some 2.5 full moons toward the constellation Cepheus. Recently discovered by French astro-imager Nicolas Outters, the remarkable nebula's bipolar shape and emission are consistent with it being a planetary nebula, the gaseous shroud of a dying sun-like star, but its actual distance and origin are unknown. A new investigation suggests Ou4 really lies within the emission region SH2-129 some 2,300 light-years away. Consistent with that scenario, the cosmic squid would represent a spectacular outflow of material driven by a triple system of hot, massive stars, cataloged as HR8119, seen near the center of the nebula. If so, this truly giant squid nebula would physically be nearly 50 light-years across.

July 18, 2014

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; hr8119; nebula; science
[Credit: Romano Corradi (IAC), Nicolas Grosso, Agnès Acker, Robert Greimel, Patrick Guillout]

1 posted on 07/19/2014 4:42:00 AM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 07/19/2014 4:42:41 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

that photo favors ‘slimer’ of Ghost Busters.


3 posted on 07/19/2014 4:56:08 AM PDT by no-to-illegals (Scrutinize our government and Secure the Blessing of Freedom and Justice)
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To: SunkenCiv
Simpson's constellation 3 Wise Men


4 posted on 07/19/2014 5:08:48 AM PDT by Vaquero (Don't pick a fight with an old guy. If he is too old to fight, he'll just kill you.)
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To: SunkenCiv

BUMP


5 posted on 07/19/2014 5:55:46 AM PDT by a fool in paradise (Ellian Gonzalez sought asylum and was sent back to Cuba, send these kids back to THEIR parents.)
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To: SunkenCiv

It really does look like a squid, but it needs some tentacles.
I wish JoeProBono were still here to add some. Sigh...


6 posted on 07/19/2014 11:56:51 AM PDT by TheOldLady
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