DDO 169
DDO 169 | |
---|---|
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 | |
UGC 8331, PGC 46127 | |
DDO 169 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]
References
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