Poster Rose Galaxy Arp 273

Decorative print of an image taken by the Hubble Telescope. © NASA

The Rose Galaxy Arp 273 is a pair of interacting galaxies located 300 million light-years away in the constellation Andromeda.

The group was first described in 1966 in Halton Arp's Atlas of Peculiar Galaxies. The larger of the two spiral galaxies, UGC 1810, has about five times the mass of the smaller one. The smaller galaxy, UGC 1813, shows clear signs of active star formation in its Kern and has probably recently passed through the larger one.