Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble Nebula  ·  NGC 7635  ·  Sh2-162
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The Bubble Nebula: NGC 7635, Prabhakaran
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The Bubble Nebula: NGC 7635

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The Bubble Nebula: NGC 7635, Prabhakaran
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The Bubble Nebula: NGC 7635

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Description

Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 7 light-year diameter bubble offers evidence of violent processes at work. Above and right of the Bubble's center is a hot, O-type star, several hundred thousand times more luminous and some 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star have blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula and associated cloud complex lie a mere 7,100 light-years away towards the constellation Cassiopeia.

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The Bubble Nebula: NGC 7635, Prabhakaran