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Astronomy Picture Of The Day
NASA ^ | 8-5-09 | Credit: NaCo, VLT, ESO

Posted on 08/05/2009 4:50:47 AM PDT by paul in cape

>b?Betelgeuse Resolved

Explanation: The sharpest image ever of Betelgeuse shows a mammoth star that is slowly evaporating. Betelgeuse (sounds a lot like "beetle juice"), also known as Alpha Orionis, is one of the largest and brightest stars known.

The star is a familiar orange fixture easily visible to the unaided eye toward the constellation of Orion. The above recent image from the Very Large Telescope in Chile resolves not only the face of Betelgeuse, but a large and previously unknown plume of surrounding gas. This plume gives fresh indications of how the massive star is shedding mass as it nears the end of its life.

Conversely, a series of previous observations indicate that the surface of Betelgeuse has noticeably shrunk, on the average, over the past decade. If Betelgeuse, a red supergiant star about 640 light years distant, were placed at the center of our Solar System, the plume would extend past the orbit of Jupiter. Since Betelgeuse is known to change its brightness irregularly, future observations may determine if changes its appearance irregularly as well.

Betelgeuse is a candidate to undergo a spectacular supernova explosion almost anytime in the next few thousand years.


TOPICS: Astronomy
KEYWORDS: astronomy; betelgeuse; nasa

1 posted on 08/05/2009 4:50:47 AM PDT by paul in cape
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To: paul in cape

Whatever you do, don’t say “Betelgeuse” three times in a row.


2 posted on 08/05/2009 4:54:21 AM PDT by Recovering Hermit (I shot the rooster, the one that used'er, wake me up at four A.M....)
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To: paul in cape
That is an amazing image. Anyone who has Celestia installed (highly recommended - free versions available for Linux, Mac, and Windows) can easily go to Betelgeuse and check this mammoth star out. If you dropped that star into the Sun's place in our solar system, the Earth (and Mars I believe) would actually be under the surface of the star.
3 posted on 08/05/2009 4:56:41 AM PDT by zeugma (Will it be nukes or aliens? Time will tell.)
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To: paul in cape

We better send Bill Klinton up there as soon as possible to get this straightened out.


4 posted on 08/05/2009 5:09:02 AM PDT by BigLittle
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To: BigLittle

Nah, he wouldn’t go - there are no women involved.


5 posted on 08/05/2009 5:49:24 AM PDT by PIF
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To: paul in cape
This plume gives fresh indications of how the massive star is shedding mass as it nears the end of its life.

At least under ObamaCare...otherwise it would get a pacemaker.

6 posted on 08/05/2009 5:49:40 AM PDT by JRios1968 (The real first rule of Fight Club: don't invite Chuck Norris...EVER)
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To: Recovering Hermit

Betelgeuse. Betelgeuse. Betelgeuse.


7 posted on 08/05/2009 6:48:48 AM PDT by NCC-1701 (ON 1-19-09 GAS WAS, ON AVERAGE IN MEMPHIS, $1.43 A GALLON.)
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To: NCC-1701

You rang ?

8 posted on 08/05/2009 12:04:04 PM PDT by fieldmarshaldj (~"This is what happens when you find a stranger in the Alps !"~~)
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