Based on recessional velocity of 7995 km/sec, about 360 million light years away. Given that and apparent size of 0.5 by 0.5 arcmins, about 50 thousand light years in diameter.
The image above is a closeup of PGC 72600 The one below is an approximately 15 arcmin wide region, centered on PGC 72600 The wide-field view also shows a number of other PGC objects