| Arp 302 | |
| Epoch: | J2000 |
| Type: | S+S |
| Dist Ly: | 450 Mly (150 Mpc) |
| Z: | 0.034505 (10166 km/s) |
| Appmag V: | 11.3 (15.3 + 15.7) |
| Size V: | 1.6 (0.6 × 0.6 / 0.9 × 0.3) |
| Constellation Name: | Boötes |
| Names: | VV 340, IRAS 14547+2448, CGCG 1454.7+2448, APG 302, KPG 446, CGCG 134-58, IRAS F14547+2449, Arp 302, LEDA 53433 / 53432, 2MASX J14570030+2436246 / J14570066+2437026, MCG+04-35-018 / +04-35-019, UGC 9618 |
Arp 302 (also known as Exclamation Point Galaxy) is a galaxy in the constellation Boötes. Arp 302, also known as VV 340 or UGC 9618 consists of a pair of very gas-rich spiral galaxies in their early stages of interaction. An enormous amount of infrared light is radiated by the gas from massive stars that are forming at a rate similar to the most vigorous giant star-forming regions in our own Milky Way. Arp 302 is 450 million light-years away from Earth, and is the 302nd galaxy in Arp's Atlas of Peculiar Galaxies.