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Astronomy Picture of the Day -- NGC 7293: The Helix Nebula
NASA ^ | October 04, 2012 | (see photo credit)

Posted on 10/05/2012 4:40:35 PM PDT by SunkenCiv

Explanation: A mere seven hundred light years from Earth, in the constellation Aquarius, a sun-like star is dying. Its last few thousand years have produced the Helix Nebula (NGC 7293), a well studied and nearby example of a Planetary Nebula, typical of this final phase of stellar evolution. A total of 58 hours of exposure time have gone in to creating this deep view of the nebula. Accumulating narrow band data from emission lines of hydrogen atoms in red and oxygen atoms in blue-green hues, it shows remarkable details of the Helix's brighter inner region, about 3 light-years across, but also follows fainter outer halo features that give the nebula a span of well over six light-years. The white dot at the Helix's center is this Planetary Nebula's hot, central star. A simple looking nebula at first glance, the Helix is now understood to have a surprisingly complex geometry.

October 04, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; helixnebula; ngc7293; science
[Credit & Copyright: Martin Pugh]

1 posted on 10/05/2012 4:40:43 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

Steamhammer ping.
Help Evaluate APOD: Where are you when you usually view APOD?

2 posted on 10/05/2012 4:42:26 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Looking for the Mote.


3 posted on 10/05/2012 4:57:01 PM PDT by Mike Darancette (Take two Aspirin and call me in November - Obama for Hindmost.)
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To: SunkenCiv

“A simple looking nebula”.....Hey! NASA! We don’t talk like that anymore. Now, we call them Challenged Nebula. Filthy, stinkin’ bigots.


4 posted on 10/05/2012 5:15:46 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: blueunicorn6; SunkenCiv
NASA! ... Filthy, stinkin’ bigots.

Ima thinking they had it right in the original writing. Moslems aren't bigots. They just got it a bit skewed when they translated it from arabic to English.

5 posted on 10/05/2012 5:36:27 PM PDT by bigheadfred (wowza)
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To: SunkenCiv

Bump this one too.


6 posted on 10/05/2012 6:30:49 PM PDT by Roses0508
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To: Mike Darancette

THe eye of GOD?


7 posted on 10/05/2012 6:32:49 PM PDT by MadMax, the Grinning Reaper
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To: bigheadfred

I don’t care if they did get screwed when they were translating this. Sex is no excuse for bigotry! But it is an excuse for missing work.


8 posted on 10/05/2012 6:45:17 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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