| NGC 502 | |
|---|---|
 SDSS view of NGC 502 | |
| Observation data (J2000[1]epoch) | |
| Constellation | Pisces[2] |
| Right ascension | 01h 22m 55.5s[3] |
| Declination | +09° 02′ 57″[3] |
| Redshift | 0.008279 ± 0.000163[1] |
| Heliocentric radial velocity | (2472 ± 49) km/s[1] |
| Distance | 113Mly[4] |
| Apparent magnitude (V) | 12.7[2] |
| Apparent magnitude (B) | 13.7[2] |
| Characteristics | |
| Type | S0[2] |
| Apparent size (V) | 1.1' × 1.0'[2] |
| Other designations | |
| GC 293,2MASS J01225553+0902570,UGC 922,PGC 5034[1][5] | |
NGC 502, also occasionally referred to asPGC 5034 orUGC 922, is alenticular galaxy in the constellationPisces.[2] It is located approximately 113 million light-years from theSolar System[4] and was discovered on 25 September 1862 byGermanastronomerHeinrich Louis d'Arrest.[5]When theMorphological Catalogue of Galaxies was published between 1962 and 1974, the identifications of NGC 502 and NGC 505 were reversed. In reality, NGC 502 is equal to MGC +01-04-041 and not MCG +01-04-043 as noted in the catalogue.[6]
Arrest discovered NGC 502 using an 11"reflecting telescope inCopenhagen. His position, which he measured on four separate nights, matches with both UGC 922 and PGC 5034.[6]John Louis Emil Dreyer, creator of theNew General Catalogue, described the galaxy as "considerably bright, small, round, brighter middle and nucleus".[5]
