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.
Wild Duck Open Cluster M11
Explanation: Many stars like our Sun were formed in open clusters . The above open cluster, M11 , contains thousands of stars and is just over three thousand light years distant. The stars in this cluster all formed together about 150 million years ago. The bright young stars in M11 appear blue. Open clusters , also called galactic clusters, contain fewer and younger stars than globular clusters . Also unlike globular clusters, open clusters are generally confined to the plane of our Galaxy . M11 is visible with binoculars towards the constellation of Scutum .
| Date | October 22, 2000 |
|---|---|
| Credit | Credit & Copyright: D. F. Malin , AAO |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |