Listed as Arp 46, as an example of a spiral galaxy with a faint companion. The companion, at RA 23 33 39, Dec +30 02 20, is listed in Wikisky as USNOA2 1200-19937361. It is not listed in HyperLeda or NED, although there is an NED note stating that it has a redshift more than 1000 km/sec greater than PGC 71748, which would put it at least 45 million light years further away, and make it unlikely that it is a physical pair with the larger galaxy. Based on a recessional velocity of 5375 km/sec, PGC 71748 is about 240 million light years away, in reasonable agreement with redshift-independent distance estimates of 185 to 225 million light years. Given that and its apparent size of 1.2 by 0.9 arcmin, it is about 85 thousand light years across.
|