| I Zw 36 | |
| Credit: | ESA/Hubble & NASA acknowledgement: Nick Rose |
| Epoch: | J2000 |
| Constellation Name: | Canes Venatici |
| Ra: | [1] |
| Z: | 0.000941 |
| H Radial V: | 282 km/s |
| Type: | Blue compact dwarf |
| Appmag B: | 15.3 |
| Absmag V: | −14.7 |
| Names: | Mrk 209, PG 1223+488, UGCA 281, Z 1223.9+4846, Anon 1223+48, PG 1223+487, UZC J122617.1+482938, [H56] 29, LEDA 40665, SBSG 1223+487, ZW I 36, MCG+08-23-035, TC 211 |
I Zwicky 36, often abbreviated to I Zw 36, is a galaxy in the constellation of Canes Venatici. It is located at a distance of about 5.8 megaparsecs from the Milky Way.
I Zwicky 36 is an irregular galaxy, specifically a blue compact dwarf galaxy. These galaxies are small, and have high rates of star formation, making them appear bluish in color. The dominant population of stars in I Zw 36 is young in stellar terms, with ages of under 3 million years.[2] It is quite isolated: the nearest galaxy is Messier 94 (NGC 4736) which is about 1.4 megaparsecs away, although the galaxy may have experienced a merger in the past that could explain its current burst of star formation.[3]