Main sequence star

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Main sequence is the stable phase of a star's lifetime, when outward pressure from internal fusion process using hydrogen for fuel is balanced by the inward force of self-gravitation. This phase is usually the longest phase of a star's lifetime.

Our Sun is a main sequence star.

v • d • e Star

General	Hertzsprung–Russell diagram · Open cluster · Star chart · Star magnitude · Starlight problem · Supernova

Hypergiants	Cygnus OB2-12 · Eta Carinae · LBV 1806-20 · MWC 314 · P Cygni · Pistol Star · Rho Cassiopeiae · RW Cephei · S Doradus · S Persei · VY Canis Majoris · Zeta Scorpii · 6 Cassiopeiae

Supergiants	Antares · Betelgeuse · Gamma Orionis · KW Sagittarii · KY Cygni · Mu Cephei · Rigel · VV Cephei · V354 Cephei · Wolf-Rayet star

Bright giant stars	Alpha Herculis · Alpha Hydrae · Beta Capricorni · Epsilon Canis Majoris · Gamma Ursae Minoris · Theta Scorpii

Giant stars	Alcyone · Mira · Pollux · Sigma Octantis · Thuban

Subgiant stars	Procyon

Main sequence stars	Alpha Coronae Borealis · Alpha Mensae · Beta Comae Berenices · Beta Pictoris · Eta Arietis · Gamma Virginis · Pi Andromedae · Phi Orionis · Sun · Zeta Puppis · 70 Ophiuchi

Binary stars	Acrux · Alpha Centauri · Luyten 726-8 · Sirius

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Astronomy