NGC 634
Galaxy in the constellation Triangulum
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NGC 634 is a spiral galaxy, lying at a distance of 217.1 megalight-years[3] away from the Milky Way in the northern constellation of Triangulum. This object was discovered on 26 October 1876 by French astronomer Édouard Stephan.[7][8] It is inclined by an angle of 82.4° to the line of sight from the Earth, and thus is being viewed nearly edge on.[5]
Right ascension01h 38m 18.679s[1]
Declination+35° 21′ 53.47″[1]
| NGC 634 | |
|---|---|
Picture created from images taken with the Wide Field Channel of Hubble's Advanced Camera for Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Triangulum |
| Right ascension | 01h 38m 18.679s[1] |
| Declination | +35° 21′ 53.47″[1] |
| Redshift | 0.016417[2] |
| Heliocentric radial velocity | 4,925 km/s[3] |
| Distance | 217.1 Mly (66.55 Mpc)[3] |
| Apparent magnitude (V) | 14.0 |
| Characteristics | |
| Type | Sa[4] |
| Size | 144,000 ly (44.16 kpc) (diameter; D25 isophote)[4] |
| Apparent size (V) | 2′.04 × 0′.55[5] |
| Other designations | |
| MCG+06-04-048, UGC 1164,[6] PGC 6059 | |
Supernovae
One supernovae have been observed in NGC 634:
- SN 2006Q (Type II, mag. 17.2) was discovered by the Lick Observatory Supernova Search (LOSS) on January 24, 2006.[5][9][10] It was 2.5″ east and 1.0″ north of the galactic core.
- SN 2008A (Type Iax, mag. 17.6) was discovered by Yoshimi Ichimura on January 2, 2008.[11][12][13][5] It was positioned 16.6 arcseconds west and 20.2 arcseconds north of the Galactic Center. This supernova reached a peak magnitude of 16.7 on January 3.[11]
