APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
CG4: A Ruptured Cometary Globule
Explanation: Can a gas cloud grab a galaxy? It's not even close. The “claw” of this odd looking “creature” in the featured 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 comet s, 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 yet known. The galaxy to the left of the globule is huge, very far in the distance, and only placed near CG4 by chance superposition .
| Date | July 26, 2021 |
|---|---|
| Credit | Image Credit & Copyright: Nicolas Rolland & Martin Pugh |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |