| NGC 4323 | |
|---|---|
| SDSS image of NGC 4323. | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices [1] |
| Right ascension | 12h 23m 01.7s [2] |
| Declination | 15° 54′ 20″ [2] |
| Redshift | 0.006182 [2] |
| Heliocentric radial velocity | 869 km/s [2] |
| Distance | 52.5 [3] Mly |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 15.1g [2] |
| Characteristics | |
| Type | SB0^0(r), dE [2] |
| Mass | 1.7×109 [4] M☉ |
| Size | ~23,000 ly (7 kpc) (estimated) [5] |
| Apparent size (V) | 0.953′ × 0.610′ [6] |
| Other designations | |
| PGC 40171, VCC 608, MCG +03-32-016 [2] | |
NGC 4323 is a lenticular or dwarf elliptical galaxy [7] located about 52.5 million light-years away in the constellation Coma Berenices. The galaxy was discovered in 1882 by astronomer Wilhelm Tempel [8] and is a member of the Virgo Cluster. [9]
NGC 4323 is commonly misidentified as NGC 4322, which is a 13th magnitude star. [10] [11]
NGC 4323 is a companion of Messier 100, [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] which lies 78,000 light-years (24 kiloparsecs ) away. [13] [17] [21] The two galaxies appear to be interacting, [15] [19] [20] [22] as evidenced by Messier 100's rotation curve, an asymmetry of its HI disk, [19] [20] and a faint, optical bridge that connects it to NGC 4323. [14] [15] [16] [17] [20] [22] However, Knapen et al. suggests that the two galaxies are not interacting as NGC 4323 is a small galaxy and has a large separation from Messier 100. [19]