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CG4: A Ruptured Cometary Globule
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CG4: A Ruptured Cometary Globule
Credit & Copyright: Josch Hambsch
Explanation: Can a gas cloud eat a galaxy? It's not even close. The odd looking "creature" or "hand" extending down from the top of the above photo is a gas cloud known as a cometary globule. This globule, however, has ruptured. Cometary globules are typically characterized by dusty heads and elongated tails. These features cause cometary globules to have visual similarities to comets, but in reality they are very much different. Globules are frequently the birthplaces of stars, and many show very young stars in their heads. The reason for the rupture in the head of this object is not completely known. The galaxy to the near the bottom of the image is huge, very far in the distance, and only placed near CG4 by chance superposition.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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Based on Astronomy Picture Of the Day

Publications with keywords: cometary globule
Publications with words: cometary globule
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