Based on a recessional velocity of 11160 km/sec, a straightforward calculation indicates that PGC 23935 is about 520 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was just under 500 million light years away at the time the light by which we see it was emitted, a little over 505 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of 0.95 by 0.5 arcmin, the main structure of the galaxy is about 135 thousand light years across, but its outer arms extend 0.4 arcmin to the west and 0.8 arcmin to the east (just past its companion, PGC 23937), giving it an overall span of more than 180 thousand light years.

For all practical purposes, the 11255 km/sec recessional velocity of PGC 23937 is the same as that of its larger companion, PGC 23935, which see for a discussion of the effect of Universal expansion on the calculations, and for images of the pair. The result is that both objects must have been just under 500 million light years away at the time the light by which we see them was emitted, just over 505 million years ago. Given that and its apparent size of 0.25 by 0.2 arcmin, PGC 23937 is about 35 thousand light years across.