Astronomy
Stars and galaxies
Accretion disc
Active galactic nucleus
Binary star
Black hole
Event horizon
Hawking radiation
Elliptical galaxy
Galaxy
Galaxy groups and clusters
Globular cluster
Gravitational collapse
Hertzsprung–Russell diagram
Irregular galaxy
Local Group
Main sequence
O-type main sequence star
B-type main sequence star
A-type main sequence star
F-type main sequence star
G-type main sequence star
K-type main sequence star
Milky Way
Neutron star
Nova
Planetary nebula
Quasar
Red giant
Solar System
Spiral galaxy
Star
Starburst galaxy
Stellar black hole
Stellar classification
Stellar evolution
Sun
Supercluster
Supergiant
Supermassive black hole
Supernova
Type Ia supernova
Type Ib and Ic supernovae
Type II supernova
White dwarf
Physics
Big Bang
Cepheid variable
Classical Cepheid variable
Type II Cepheid
Cosmic distance ladder
Distance measures (cosmology)
Comoving distance
Doppler effect
Doppler shift
Electromagnetic radiation
Electromagnetic spectrum
Gravitation
Kepler's laws of planetary motion
Light
Light curve
Luminosity
Luminosity distance
Absolute magnitude
Apparent magnitude
Orbit
Recessional velocity
Redshift
Solar mass
Spectroscopy
Spectral line
Astronomical spectroscopy