Usage By The Arp Atlas: PGC 38325 is used by the Arp Atlas as an example of a spiral galaxy with an elliptical companion (PGC 38327).
Physical Information: Based on a recessional velocity relative to the Cosmic Background Radiation of 7290 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that PGC 38325 and its companion (PGC 38327) are about 340 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 pair was about 330 million light years away at the time the light by which we see it was emitted, about 335 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 about 0.22 by 0.2 arcmin for its core, about 1.65 by 0.45 arcmin for that and its "arms", and about 2.45 by 0.6 for the entirety of Arp 97 (from the images below), the core of PGC 38325 is about 20 to 25 thousand light years across, that and its apparent arms span about 155 to 160 arcmin, and Arp 97 is about 235 thousand light years across.
Classification Note: As noted above Arp treated PGC 38325 as a spiral galaxy with an elliptical companion, and given the way in which the distorted extensions of PGC 38325 look like normal spiral arms that isn't unreasonable. But as the images below show, the galaxy looks more like a disturbed lenticular galaxy with extensions caused by its interaction with PGC 38327 that are not true arms, but merely look like arms. As a result, other than in the Arp Atlas the galaxy is invariably classified as a lenticular galaxy of one sort or another (varying according to the reference because of its peculiar structure). The classification shown in the description line is my own best guess (as indicated by the question mark) based on a comparison of various references.

Usage By The Arp Atlas: PGC 38327 is used by the Arp Atlas as an example of a spiral galaxy (PGC 38325) with an elliptical companion.
Physical Information: Based on a recessional velocity relative to the Cosmic Background Radiation of 7285 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that PGC 38327 and its companion (PGC 38325) are about 340 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 pair was about 330 million light years away at the time the light by which we see it was emitted, about 335 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 the apparent size of its core of about 0.4 by 0.4 arcmin, of its extended halo of about 0.85 by 0.85 arcmin, and of about 2.45 by 0.6 arcmin for the entirety of Arp 97 (from the images below), the core of PGC 38327 is about 35 to 40 thousand light years across, its extended halo spans about 80 to 85 thousand light years, and Arp 97 is about 235 thousand light years across.