⭐ Star Classification Database

Every documented star in the cosmos, cross-verified against SIMBAD, ESA Gaia DR3, and HIPPARCOS — with AI-enhanced Morgan-Keenan spectral classification, stellar evolution context, and Ark Fleet energy-source ratings.

100–400B

Confirmed Stars (Milky Way est.)

~15M+

SIMBAD Catalogued Objects

1.8 Billion

Gaia DR3 Sources

O B A F G K M + more

Spectral Classes (MK)

⭐ Fomalhaut

A3V

Temp: 7,671K25.06 ly

⭐ TOI-715

TIC 271971130

Volans

M4V

Temp: 3,384KMass: 0.384☉137 lyLum: 0.016☉🪐 1 planets

⭐ 19 Tauri B

HD 23338B

Taurus

A0V

Temp: 9,500KMass: 2.1☉440 lyLum: 25☉Binary System

⭐ Taygeta A

19 Tauri

Taurus

B6IV

Temp: 13,400KMass: 4.5☉440 lyLum: 160☉Binary System

⭐ Atlas

27 Tauri

Taurus

B8III

Temp: 12,300KMass: 5.04☉444 lyLum: 940☉Binary System

⭐ Alcyone

Eta Tauri (25 Tauri)

Taurus

B7IIIe

Temp: 12,258KMass: 6☉440 lyLum: 2030☉Binary System

⭐ TRAPPIST-1

2MASS J23062928-0502285

Aquarius

M8V

Temp: 2,566KMass: 0.0898☉40.66 lyLum: 0.000553☉🪐 7 planets

⭐ Altair

A7V

Temp: 7,550K16.73 ly

⭐ Achernar

Alpha Eridani

Eridanus

B6Vep

Temp: 15,000KMass: 6.7☉139 lyLum: 3150☉Binary System

⭐ Procyon

Alpha Canis Minoris

Canis Minor

F5IV-V

Temp: 6,530KMass: 1.5☉11.46 lyLum: 6.93☉Binary System

⭐ Arcturus (Alpha Boötis)

Alpha Boötis

Boötes

K1.5III

Temp: 4,286KMass: 1.08☉36.7 lyLum: 170☉

⭐ Canopus

Alpha Carinae

Carina

A9II

Temp: 7,350KMass: 8☉310 lyLum: 10700☉

⭐ Sirius

Alpha Canis Majoris

Canis Major

A1V

Temp: 9,940KMass: 2.06☉8.6 lyLum: 25.4☉Binary System

⭐ Tau Ceti

Tau Ceti

Cetus

G8.5V

Temp: 5,344KMass: 0.783☉11.9 lyLum: 0.52☉🪐 4 planets

⭐ Rigil Kentaurus

Alpha Centauri A

Centaurus

G2V

Temp: 5,790KMass: 1.1☉4.37 lyLum: 1.519☉Binary System

⭐ Rigel

Beta Orionis

Orion

B8Ia

Temp: 12,100KMass: 21☉863 lyLum: 120000☉Binary System

⭐ Betelgeuse

Alpha Orionis

Orion

M1-M2Ia-ab

Temp: 3,500KMass: 16.5☉642.5 lyLum: 126000☉

⭐ Vega

Alpha Lyrae

Lyra

A0V

Temp: 9,602KMass: 2.135☉25.04 lyLum: 40.12☉

⭐ 19 Draconis (HD 153597)

HD 160346

Draco

M0V

Temp: 3,820KMass: 0.51☉46.29 lyLum: 0.047☉

⭐ 26 Draconis

HD 162261

Draco

G1V

Temp: 5,915KMass: 1.05☉46.51 lyLum: 1.37☉Binary System

⭐ 19 Draconis

HD 153597

Draco

F6V

Temp: 6,340KMass: 1.21☉50.48 lyLum: 1.88☉

⭐ 44 Boötis

HD 133640 / HIP 73695

Boötes

F2V + G2V

Temp: 6,890KMass: 1.5☉41.6 lyLum: 3.1☉Binary System

⭐ Algol

Beta Persei

Perseus

B8 V

Temp: 13,000KMass: 3.17☉90 lyLum: 182☉Binary System

⭐ Menkalinan

Beta Aurigae

Auriga

A1mIV+A1mIV

Temp: 9,350KMass: 2.39☉81.1 lyLum: 95☉Binary System

⭐ Denebola

Beta Leonis

Leo

A3 V

Temp: 8,500KMass: 1.78☉35.9 lyLum: 15☉

⭐ Alnitak

Zeta Orionis

Orion

O9.7Ib

Temp: 29,500KMass: 33☉1260 lyLum: 250000☉Binary System

⭐ Mirfak

Alpha Persei

Perseus

F5Ib

Temp: 6,350KMass: 8.5☉510 lyLum: 5000☉

⭐ Polaris

Alpha Ursae Minoris

Ursa Minor

F7Ib

Temp: 6,015KMass: 5.4☉433.8 lyLum: 2500☉Binary System

⭐ Sadr

Gamma Cygni

Cygnus

F8 Ib

Temp: 6,100KMass: 12.1☉1800 lyLum: 33000☉

⭐ Adhara

Epsilon Canis Majoris

Canis Major

B2 II

Temp: 22,900KMass: 12.6☉430 lyLum: 38700☉Binary System

⭐ Alkaid

Eta Ursae Majoris

Ursa Major

B3 V

Temp: 15,540KMass: 6.1☉103.9 lyLum: 594☉

⭐ Mirzam

Beta Canis Majoris

Canis Major

B1 II-III

Temp: 23,150KMass: 13.5☉490 lyLum: 26600☉

⭐ Castor

Alpha Geminorum

Gemini

A1 V

Temp: 9,429KMass: 2.15☉51.5 lyLum: 30☉Binary System

⭐ Bellatrix

Gamma Orionis

Orion

B2 III

Temp: 22,000KMass: 7.7☉250 lyLum: 9211☉

⭐ Capella

Alpha Aurigae

Auriga

G3 III

Temp: 4,970KMass: 2.56☉42.9 lyLum: 78.5☉Binary System

⭐ Regulus

Alpha Leonis

Leo

B8 IVn

Temp: 12,460KMass: 3.8☉79.3 lyLum: 312☉Binary System

⭐ Deneb

Alpha Cygni

Cygnus

A2 Ia

Temp: 8,525KMass: 19☉2615 lyLum: 196000☉

⭐ Pollux

Beta Geminorum

Gemini

K0III

Temp: 4,666KMass: 1.91☉33.78 lyLum: 43☉🪐 1 planets

⭐ Fomalhaut

Alpha Piscis Austrini

Piscis Austrinus

A3V

Temp: 8,590KMass: 1.92☉25.13 lyLum: 16.63☉🪐 1 planetsBinary System

⭐ Spica

Alpha Virginis

Virgo

B1III-IV

Temp: 25,300KMass: 11.43☉250 lyLum: 20500☉Binary System

⭐ Aldebaran

Alpha Tauri

Taurus

K5+ III

Temp: 3,910KMass: 1.16☉65.3 lyLum: 439☉🪐 1 planetsBinary System

⭐ Antares

Alpha Scorpii

Scorpius

M1.5Iab-Ib

Temp: 3,660KMass: 12☉550 lyLum: 75900☉Binary System

⭐ Arcturus

Alpha Boötis

Boötes

K1.5III

Temp: 4,286KMass: 1.08☉36.7 lyLum: 170☉

⭐ Alpha Centauri A

Rigil Kentaurus

Centaurus

G2V

Temp: 5,790KMass: 1.1☉4.37 lyLum: 1.519☉Binary System