NGC 4608
| NGC 4608 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 41m 13.3s[1] |
| Declination | 10° 09′ 20″[1] |
| Redshift | 0.006171/1850 km/s[1] |
| Distance | 56,390,194 ly |
| Group or cluster | Virgo Cluster |
| Type | SB0^0(r) [1] |
| Size (ly) | ~53,105.36 ly (estimated) |
| Apparent dimensions (V) | 3.2 x 2.7[1] |
| Apparent magnitude (V) | 11.97[1] |
| Other designations | |
| UGC 7842, PGC 42545, VCC 1869,[1] | |
NGC 4608 is a barred lenticular galaxy located about 56 million light-years away[2] in the constellation of Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784.[3] NGC 4608 is in a pair of galaxies along with NGC 4596. It is a member of the Virgo Cluster.[4]
Physical characteristics
NGC 4608 has a very well-defined bar. Surrounding the bar, there is an inner ring that is defined by a sharp inner edge. Outside of the inner ring,[5] there is a low surface brightness disk[6] that contains weak spiral features.[5]
The disk in NGC 4608 is practically considered non-existent. One explanation is that the bar in the galaxy was able to form without a disk. Another explanation says that a weak bar forms initially. Over time, the bar grows by causing the external disk to lose angular momentum therefore funneling material toward the bulge. Then the bar would be surrounded by a halo with very little or no disk left.[6]
See also
External links
- NGC 4608 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
