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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.
Southwest Andromeda
Explanation: This new image composite of the southwest region of M31 from the Subaru Telescope shows many stars, nebulae, and star clusters never before resolved. An older population of stars near Andromeda's center causes the yellow hue visible on the upper right. Young blue stars stand out in the spiral arms on the lower left. Red emission nebula , blue open clusters of stars, and sweeping lanes of dark dust punctuate the swirling giant. Andromeda , at about 2.5 million light years distant, and our Milky Way are the largest galaxies in the Local Group of Galaxies . Understanding M31 helps astronomers to understand our own Milky Way Galaxy , since the two are so similar.
| Date | September 17, 2001 |
|---|---|
| Credit | Credit & Copyright: Satoshi Miyazaki ( NAOJ ) et al., Suprime-Cam , Subaru Telescope , NOAJ |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |