1. Galaxies
     A Gravitationally Bound System of Stars, Stellar Remnants, Interstellar Gas and Dust and Dark Matter  

Galaxies

A Gravitationally Bound System of Stars, Stellar Remnants, Interstellar Gas and Dust and Dark Matter

Morphology

Anemic galaxy

Disc galaxy

Dwarf galaxy

Elliptical galaxy

Irregular galaxy

Lenticular galaxy

Peculiar galaxy

Ring galaxy

Spiral galaxy

Type-cD galaxy

Structure

Barred spiral galaxy

Bulge (astronomy)

Dark matter halo

Disc (galaxy)

Galactic halo

Galactic plane

Interstellar medium

Protogalaxy

Supermassive black hole

Active Nuclei

Blazar

Low-ionization nuclear emission-line region

Quasar

Radio galaxy

Astrophysical jet

Seyfert galaxy

Energetic Galaxies

Lyman-alpha emitter

Luminous infrared galaxy

Starburst galaxy

Low Activity

Low-surface-brightness galaxy

Ultra diffuse galaxy

Interaction

Field galaxy

Galactic tide

Galaxy cloud

Galaxy groups and clusters

Interacting galaxy

Satellite galaxy

Stellar kinematics

Supercluster

Galaxy filament

Void galaxy

Void (astronomy)

Lists

List of galaxies

List of galaxy groups and clusters

Large quasar group

List of largest known galaxies

List of nearest galaxies

List of polar-ring galaxies

List of ring galaxies

List of quasars

List of spiral galaxies

List of voids

See Also

Dark galaxy

Faint blue galaxy

Galaxy formation and evolution

Illustris project

Intergalactic dust

Intergalactic star

Intergalactic travel

Metallicity

• Henry G. Bonebrake
• Henry G. Booker
• Henry G. Boyle
• Henry G. Bryant
• Henry G. Carey Jr.
• Henry G. Chauvel
• Henry Gear
• Henry Gearing
• Henry Gee (dean)
• Henry Gee Roberts
• Henry Gehring
• Henry Gein
• Henry Geldzahler (film)
• Henry George Birthplace
• Henry George Boldero
• Henry George Carey Jr.
• Henry George Carey, Jr.
• Henry George Charles Lascelles
• Henry George Ell
• Henry George Forder
• Henry George Fryberg
• Henry George Gore-Browne
• Henry George Hart
• Henry George Hine
• Henry George Hoyland