Arp 147 (also known as IC 298) is an interacting pair of ring galaxies. It lies 430 million to 440 million light years away in the constellation Cetus and does not appear to be part of any significant galaxy group. The system was originally discovered in 1893 by Stephane Javelle and is listed in the Atlas of Peculiar Galaxies.

The system was formed when a spiral galaxy (image right) collided with an elliptical galaxy (image left). The collision produced an expanding wave of star production (shown as bright blue) traveling at an effective speed of ≳100 km s⁻¹ and began some 40 million years ago. The most extreme period of star formation is estimated to have ended 15 million years ago and as the young, super hot stars died (as exploding supernovas) they left behind neutron stars and black holes.