Stars of the First Magnitude

The 21 brightest stars are recognized as being of the first magnitude. The values given here are the latest determinations and differ somewhat from earlier values.

Star

Name

Mag.

Spectrum

Distance,

Luminosity,

lt-yrs

Sun 1

Alpha Canis Majoris

Sirius

-1.44

A1

8.6

26

Alpha Carinae

Canopus

-0.62

F0

310

15,000

Alpha Centauri

-0.27

G2+K1

4.4

1.7 + 0.45

Alpha Boötis

Arcturus

-0.05

K2

37

115

Alpha Lyrae

Vega

0.03

A0

25

52

Alpha Aurigae

Capella

0.08

G8+G0

42

90 + 70

Beta Orionis

Rigel

0.18

B8

770

40,000

Alpha Canis Minoris

Procyon

0.40

F5

11

8

Alpha Eridani

Achernar

0.45

B5

144

1000

Alpha Orionis

Betalgeux

0.45

M2

430

11,000

Beta Centauri

Agena

0.61

B1

530

10,000

Alpha Aquilae

Altair

0.76

A7

16.8

10

Alpha Crucis

Acrux

0.77

B0+B1

320

3200 = 2000

Alpha Tauri

Aldebaran

0.87

K5

65

140

Alpha Virginis

Spica

0.98

B1+B2

260

2200

Alpha Scorpii

Antares

1.08

M1

600

9000

Beta Geminorum

Pollux

1.16

K0

35

33

Alpha Piscis Australis

Fomalhaut

1.17

A3

25

14

Alpha Cygni

Deneb

1.25

A2

1800

60,000

Beta Crucis

Mimosa

1.25

B0

300

260,000

Alpha Leonis

Regulus

1.36

B7

78

125

Next in order of brightness come Epsilon Canis Majoris (Adhara) 1.50, Alpha Geminorum (Castor) 1.58, Gamma Orionis 1.59 and Lambda Scorpii (Shaula) 1.62.

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