| NGC 2491 | |
|---|---|
 Sloan Digital Sky Survey of NGC 2491 | |
| Observation data (J2000epoch) | |
| Constellation | Canis Minor |
| Right ascension | 07h 58m 27.37s |
| Declination | +07d 59m 01.74s |
| Redshift | 0.039290 |
| Heliocentric radial velocity | 18,476km/s |
| Distance | 583Mly (178.74Mpc) |
| Apparent magnitude (V) | 14.8 |
| Apparent magnitude (B) | 15.6 |
| Surface brightness | 11.75 |
| Characteristics | |
| Type | S |
| Size | 130,000ly |
| Apparent size (V) | 0.3' x 0.2' |
| Other designations | |
| PGC 22353,2MASX J07582739+0759018,SDSS J075827.37+075901.7,CGCG 031-007,2MASS J07582738+0759019, NPM1G+08.0123,LEDA 22353 | |
NGC 2491 is aspiral galaxy located inCanis Minor constellation.[1] It is located 580 millionlight-years fromEarth and has an approximatediameter of 130,000 light-years.[2]
NGC 2491 was discovered byAmerican astronomerLewis Swift on November 15, 1885.[3] Swift described it as extremely faint, small, with a round irregular shape, and a bright star to the west.[3] With asurface brightness ofmagnitude of 11.75, NGC 2491 is classified as a high surface brightness galaxy.[4]
