DDO 169 [SEP] constellation
DDO 169
DDO 169 (also known as 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 × 1.5 kiloparsecs (16,000 × 5,000 lightyears). 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. These clusters make it practically impossible to determine the galaxy's rotation curve and contributes to a large variation in distance figures that
in 1950 by Robert George Harrington and Albert George Wilson. It is one of the satellite galaxies of the Milky Way.
Examples DDO 155.
DDO 155 (also known as GR 8, PGC 44491 or UGC 8091) is a dwarf irregular galaxy located approximately 7.9 million light years away from Earth in the constellation of Virgo. People give a nickname to this galaxy, called 'Imprint of a Foot' because of its shape.
Examples DDO 169.
DDO 169 (also known as PGC 46127