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 Doomed Dust Disk of NGC 7052
Explanation: What created the dust disk in the center of NGC 7052, and what keeps it spinning? Although the disk might appear as a relatively tame “hubcap in space” , the unusual center of elliptical galaxy NGC 7052 is probably the remnant of a titanic collision between galaxies. What's more, the disk's spin indicates the tremendous gravity of a massive central black hole . Analysis of this recently released photo by the Hubble Space Telescope indicates that the disk is thousands of light-year s across, rotates faster than 100 kilometers per second, at a distance of 150 light-years from the center, and contains more mass than a million Suns. The theorized central black hole is thought to be yet 100 times more massive, and may swallow the entire disk in the next few million years.
| Date | June 22, 1998 |
|---|---|
| Credit | Credit: R. P. van der Marel (STScI) et al., WFPC2, HST, NASA |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



