| NGC4273 | |
| Constellation Name: | Virgo |
| Epoch: | J2000 |
| Type: | SB(s)c[1] |
| Dist Ly: | NaNMpc |
| Group Cluster: | NGC 4235 group |
| Z: | 0.007942 |
| H Radial V: | 2381 ± 2 km/s |
| Appmag V: | 11.9 |
| Size: | ~21.12kpc (estimated) |
NGC4273 is a barred spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 2727 ± 24km/s, which corresponds to a Hubble distance of NaNMpc. However, 20 non-redshift measurements give a distance of NaNMpc.[2] It was discovered by German-British astronomer William Herschel on 17 April 1786.[3]
According to A.M. Garcia, NGC 4273 is one of the galaxies in the NGC 4235 group (also known as LGG 281). This galaxy group contains at least 29 members, of which 18 appear in the New General Catalogue and 4 in the Index Catalogue.[4]
Two supernovae have been observed in NGC 4273. SN 1936A (typeII, mag. 14.5) was discovered by Edwin Hubble and Glenn Moore on 21 January 1936.[5] [Note: Many sources incorrectly cite the discovery date of SN 1936A as 2 January 1936.] SN 2008N (type II, mag. 17.8) was discovered by Alex Filippenko, D. Winslow, and W. Li on 17 January 2008.[6]