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.
The Arms of NGC 7424
Explanation: The grand , winding arms are almost mesmerizing in this face-on view of NGC 7424, a spiral galaxy with a prominent central bar . About 40 million light-years distant in the headlong constellation Grus , this island universe is also about 100,000 light-years across making it remarkably similar to our own Milky Way . Following along the winding arms, many bright bluish clusters of massive young stars can be found. The star clusters themselves are several hundred light-years in diameter. And while massive stars are born in the arms of NGC 7424, they also die there. Notably, this galaxy was home to a powerful stellar explosion, supernova SN 2001ig , which faded before this deep European Southern Observatory image was recorded .
| Date | December 16, 2004 |
|---|---|
| Credit | Credit: VIMOS / VLT , European Southern Observatory |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



