IC 4250 consists of a 15th-magnitude galaxy and "companion". The galaxy shown as component 1 above is probably the "original" IC object. PGC 1777586, shown as component 2 above is probably the "companion", and therefore part of the original definition of the IC object, even though a separate galaxy. IC 4250 (= CGCG 161-049 NED01) has a recessional velocity of 11145 km/sec, suggesting a distance of about 500 million light years. Based on that and its apparent size of 0.55 by 0.3 arcmins, it is about 80 thousand light years in diameter. PGC 1777586 (= CGCG 161-049 NED02) has a recessional velocity of 11170 km/sec, also suggesting a distance of about 500 million light years. Based on that and its apparent size of 0.25 by 0.2 arcmins, it is about 35 thousand light years in diameter. Given the appearance of the galaxies and their common distance, they are almost certainly a physical pair.

IC 4271 is a pair of galaxies, also designated Arp 40, as an example of a spiral galaxy with a faint companion. Based on recessional velocity of 17090 km/sec, the pair is about 760 million light years away. Given that and apparent size of 0.7 by 0.6 arcmin, the larger galaxy is about 180 thousand light years across. The companion's apparent size of 0.3 by 0.25 arcmin corresponds to about 75 thousand light years.