| NGC 4393 | |
|---|---|
 SDSS image of NGC 4393. | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 25m 51.2s[1] |
| Declination | 27° 33′ 42″[1] |
| Redshift | 0.002505[1] |
| Heliocentric radial velocity | 751 km/s[1] |
| Distance | 46 Mly (14.2 Mpc)[1] |
| Group or cluster | Coma I (NGC 4274 subgroup) |
| Apparent magnitude (V) | 12.7[1] |
| Characteristics | |
| Type | SABd[1] |
| Size | ~38,700 ly (11.86 kpc) (estimated)[1] |
| Apparent size (V) | 3.2 x 3.0[1] |
| Other designations | |
| UGC 07521, PGC 040600, MCG +05-29-083[1] | |
NGC 4393 is a spiral galaxy about 46 million light-years away[2] in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 11, 1785.[3] It is a member of the NGC 4274 Group,[4][5] which is part of the Coma I Group[6] or Cloud.[7]
- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 4393. Retrieved 2022-04-18.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2022-04-22.
- ^ "New General Catalog Objects: NGC 4350 - 4399". cseligman.com. Retrieved 2022-04-12.
- ^ Kourkchi, Ehsan; Tully, R. Brent (2017-06-27). "Galaxy Groups Within 3500 km s −1". The Astrophysical Journal. 843 (1): 16. arXiv:1705.08068. Bibcode:2017ApJ...843...16K. doi:10.3847/1538-4357/aa76db. ISSN 1538-4357. S2CID 119407480.
- ^ "The Extragalactic Distance Database (EDD)". edd.ifa.hawaii.edu. Retrieved 2022-04-22.
- ^ "Nearby Groups of Galaxies". ned.ipac.caltech.edu. Retrieved 2022-04-12.
- ^ Gregory, Stephen A.; Thompson, Laird A. (1977-04-01). "The Coma i Galaxy Cloud". The Astrophysical Journal. 213: 345–350. Bibcode:1977ApJ...213..345G. doi:10.1086/155160. ISSN 0004-637X.