I Zwicky 18
(I Zw 18, Zw I 18)
(blue compact galaxy with low metallicity)
I Zwicky 18 (I Zw 18) is a blue compact dwarf galaxy
(i.e., with star formation) with very low metallicity.
Metallicity is so low that it is presumed to include and form
Population III stars. The low metallicity and
early stars also made astronomers assume the galaxy
was very young, but eventually older stars were discovered.
| || |
|.0042||18Mpc||59.0Mly||I Zwicky 18|
|Coordinates:||I Zw 18|
Referenced by pages:
Catalog of Galaxies and Clusters of Galaxies (CGCG)