UGC 6945 (also known as Arp 194) is a trio of interacting galaxies.

Based upon a radial velocity of about 10,500 km s−1, the interacting pair of galaxies at the northwest are located at a distance of 175 Mpc (570 Mly) from us (assuming a Hubble constant value of 60 km s−1 Mpc−1).

If we further assume that the third galaxy lies at the same distance away from us, we find that the galaxies are separated by a projected linear distance of roughly 34 Kpc (110 Kly),[5] though later findings from Hubble may cast this assumption into doubt (see below).

[5] While it has long been believed to be interacting with the northern galaxy, images from the Hubble Space Telescope clearly show that this stream of material is actually superimposed on the southern galaxy.

Due to this uncertainty, the third galaxy may not be involved in the interaction.