| NGC 5939 | |
|---|---|
 NGC 5939 imaged byPan-STARRS | |
| Observation data (J2000epoch) | |
| Constellation | Ursa Minor |
| Right ascension | 15h 24m 45.9753s[1] |
| Declination | +68° 43′ 50.69″[1] |
| Redshift | 0.022235[1] |
| Heliocentric radial velocity | 6666 ± 4 km/s[1] |
| Distance | 321.6 ± 22.5 Mly (98.59 ± 6.90 Mpc)[1] |
| Group orcluster | NGC 5939 Group |
| Apparent magnitude (V) | 13.1[1] |
| Characteristics | |
| Type | S?[1] |
| Size | ~102,500 ly (31.44 kpc) (estimated)[1] |
| Apparent size (V) | 0.9′ × 0.5′[1] |
| Other designations | |
| IRAS 15244+6854,2MASX J15244604+6843501,UGC 9854,MCG +12-15-007,PGC 55022,CGCG 338-008[1] | |
NGC 5939 is aspiral galaxy in theconstellation ofUrsa Minor. Itsvelocity with respect to thecosmic microwave background is 6684 ± 4 km/s, which corresponds to aHubble distance of 98.59 ± 6.90Mpc (~322 millionlight-years).[1] It was discovered by American astronomerLewis Swift on 11 July 1883.[2]
Threesupernovae have been observed in NGC 5939:
NGC 5939 is part of a trio of galaxies: The other two galaxies in thegroup areIC 1129 and UGC 9896.[8]
