Friday, February 02, 2007

Apod3.5- Thor's Helmet


This is a picture of NGC 2359, a striking emission nebulae. It is nicknamed Thor's helmet. This bubble nebulae is 30 light years across and is blown by energetic winds from a very hot star in the center. This star is known as a Wolf-Rayet star, a rare massive blue giant which develops tremendous winds that go at millions of kilometers per hour.

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