Galaxy classification systems
type: Concept
narrower: De Vaucouleurs Sandage classification

Elliptical galaxies
type: Concept
related: De Vaucouleurs Sandage classification

Irregular galaxies
type: Concept
related: De Vaucouleurs Sandage classification

Spiral galaxies
type: Concept
related: De Vaucouleurs Sandage classification

Spiral arms
type: Concept
related: De Vaucouleurs Sandage classification

Lenticular galaxies
type: Concept
related: De Vaucouleurs Sandage classification

De Vaucouleurs Sandage classification
type: Concept
related: Lenticular galaxies
related: Spiral arms
related: Elliptical galaxies
related: Spiral galaxies
related: Irregular galaxies
broader: Galaxy classification systems
alternative label: De Vaucouleurs-Sandage classification
alternative label: De Vaucouleurs system