Amorphous irregular galaxies
type: Concept
broader: Irregular galaxies

Irregular galaxies
contributor: AAS Frey.Katie Admin
type: Concept
narrower: Amorphous irregular galaxies
narrower: Dwarf irregular galaxies
narrower: Magellanic irregular galaxies
modified: 2020-11-03T16:17:47.785Z
modified: 2020-12-16T15:48:51.789Z
broader: Galaxies
related: Hubble classification scheme
related: De Vaucouleurs Sandage classification
definition: A galaxy with no spiral structure and no symmetric shape. Irregular galaxies are usually filamentary or very clumpy in shape and tend to smaller than others. Two types of irregular galaxies are defined, Irr I galaxy and Irr II galaxy.

Dwarf irregular galaxies
type: Concept
broader: Irregular galaxies

Hubble classification scheme
type: Concept
related: Irregular galaxies

Magellanic irregular galaxies
type: Concept
broader: Irregular galaxies

De Vaucouleurs Sandage classification
type: Concept
related: Irregular galaxies

Galaxies
type: Concept
narrower: Irregular galaxies