| UGC 8331 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 13h 15m 30.31s |
| Declination | +47° 29′ 56.2″ |
| Redshift | +260 km/s |
| Distance | 6.03 / 8.23 Mpc[1][2] (19.7 / 26.8 million ly) |
| Type | IAm |
| Apparent dimensions (V) | 2.7′ × 0.9' |
| Apparent magnitude (V) | 14.61 |
| Other designations | |
| DDO 169, PGC 46127 | |
| See also: Galaxy, List of galaxies | |
UGC 8331 is an irregular galaxy located in the constellation Canes Venatici. It is a member of the M51 Group of galaxies and measures approximately 5 x 1.5 kiloparsecs (16,000 x 5,000 lightyears).[1] The galaxy's large-scale structure is very unorganized and it has two clusters of stars in its outer portions in addition to the cluster in the center.[3] These clusters make it practically impossible to determine the galaxy's rotation curve and contributes to a large variation in distance figures that are derived with different methods.[1][3] The exact distance to the galaxy is not known, although a 1998 paper estimated the distance as 8.23 megaparsecs.[2]