UGC 12682
| UGC 12682 | |
|---|---|
UGC 12682 imaged by the Hubble Space Telescope. | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 34m 53.212s |
| Declination | +18° 13′ 36.804″ |
| Redshift | 0.004623 |
| Heliocentric radial velocity | 1389 km/s |
| Distance | 49.2 ± 3.7 Mly (15.10 ± 1.12 Mpc) |
| Characteristics | |
| Type | Im |
| Size | ~30,400 ly (9.31 kpc) (estimated) |
| Other designations | |
| UCM 2332+1757, DDO 218, IRAS 23323+1757, MCG +03-60-007, PGC 71801, CGCG 455-020, SDSS J233453.21+181336.8 | |
References: MCG | |
UGC 12682 is an irregular galaxy, located in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 1024 ± 25 km/s, which corresponds to a Hubble distance of 49.2 ± 3.7 Mly (15.10 ± 1.12 Mpc). In addition, one non redshift measurement gives a distance of 65 Mly (20.0 Mpc). The earliest known reference to this galaxy is from the 1959 journal A Catalogue of Dwarf Galaxies by Sidney Van Den Bergh, where it is listed as DDO 218.
On 7 November 2008, 14-year-old amateur astronomer Caroline Moore from Warwick, New York, became the youngest supernova discoverer at the time, when she found SN 2008ha (type Ia, mag. 18.8) in UGC 12682.