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Baggins

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M27: The Dumbbell Nebula
« on: December 29, 2011, 10:51:36 AM »



The first hint of what will become of our Sun was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets. The 27th object on Messier's list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, the type of nebula our Sun will produce when nuclear fusion stops in its core. M27 is one of the brightest planetary nebulae on the sky, and can be seen toward the constellation of the Fox (Vulpecula) with binoculars. It takes light about 1000 years to reach us from M27, shown above in colors emitted by hydrogen and oxygen. Understanding the physics and significance of M27 was well beyond 18th century science. Even today, many things remain mysterious about bipolar planetary nebula like M27, including the physical mechanism that expels a low-mass star's gaseous outer-envelope, leaving an X-ray hot white dwarf.
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The Fuzz

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Re: M27: The Dumbbell Nebula
« Reply #1 on: December 29, 2011, 05:13:23 PM »

Sweet....good post.

I've always wondered if color enhancements are made of those shots.
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Baggins

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Re: M27: The Dumbbell Nebula
« Reply #2 on: December 29, 2011, 05:53:41 PM »

Sweet....good post.

I've always wondered if color enhancements are made of those shots.

Some are inhanced, but ones like this are pretty cool because the color comes from the gas atoms being energized by the near by radiation...
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"Praise not the day until evening has come,
 A sword until it is tried,
 A maiden until she is married,
 Ice until it has been crossed,
 Beer until it has been drunk!" - (Viking proverb)
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