| NGC 673 | |
|---|---|
 NGC 673 imaged bySDSS | |
| Observation data (J2000epoch) | |
| Constellation | Aries |
| Right ascension | 01h 48m 22.4795s[1] |
| Declination | +11° 31′ 17.323″[1] |
| Redshift | 0.017289[1] |
| Heliocentric radial velocity | 5183 ± 1 km/s[1] |
| Distance | 235.4 ± 16.5 Mly (72.18 ± 5.06 Mpc)[1] |
| Group orcluster | NGC 673 Group (LGG 31) |
| Apparent magnitude (V) | 12.6[1] |
| Characteristics | |
| Type | SAB(s)c[1] |
| Size | ~137,900 ly (42.27 kpc) (estimated)[1] |
| Apparent size (V) | 2.1′ × 1.7′[1] |
| Other designations | |
| IRAS 01457+1116,2MASX J01482246+1131176,UGC 1259,MCG +02-05-033,PGC 6624,CGCG 437-030[1] | |
NGC 673 is anintermediate spiral galaxy in theconstellation ofAries. Its velocity with respect to thecosmic microwave background is 4894 ± 20 km/s, which corresponds to aHubble distance of 235.4 ± 16.5 Mly (72.18 ± 5.06 Mpc).[1] In addition, 31non redshift measurements give a closer distance of 206.09 ± 5.54 Mly (63.187 ± 1.699 Mpc).[2] The galaxy was discovered by German-British astronomerWilliam Herschel on 4 September 1786.[3]
According to A.M. Garcia, NGC 673 is the namesake of the NGC 673Group (also known asLGG 31). This group contains at least 17 galaxies, includingIC 156,IC 162,NGC 665,NGC 677,NGC 683, and 11 galaxies from theUGC catalogue.[4]
Twosupernovae have been observed in NGC 673:
Media related toNGC 673 at Wikimedia Commons
