The Brightest Stars in Apparent Magnitude
Star Name Spectral Apparent Absolute Distance
alpha CMa A Sirius A1 V* -1.46 1.4 8.6
alpha Car Canopus F0 II -0.72 -3.1 74
alpha Cen Rigil Kentaurus G2 V+K1 V -0.01 4.4 4.3
alpha Boo Arcturus K2 IIIb -0.04 -0.3 34
alpha Lyr Vega A0 V 0.03 0.5 25.3
alpha Aur Capella G8 0.08 -0.6 41
beta Ori Rigel B8 I* 0.12 -7.1 815
alpha CMi Procyon F5 IV 0.38 2.7 11.4
alpha Eri Archenar B3 Vpe 0.46 -2.3 69
alpha Ori Betelgeuse M2 I 0.50 -5.6 650
beta Cen Hadar B1 III 0.61 -5.2 320
alpha Aql Altair A7 V 0.77 16.8
213468 A0 V 0.77
alpha Tau Aldebaran K5 III 0.85 -0.7 60
alpha Vir Spica B1 III+B2 V 0.98 -3.3 220
alpha Sco Antares M1.5 I* 0.96 -5.1 425
beta Gem Pollux K0 III 1.14 1.0 40
alpha PsA Fomalhaut A3 Va 1.16 2.0 22
alpha Cyg Deneb A2 Iae 1.25 -7.1 1630
Notes:
- The sources for this table
are
SEDS (Students Explore the Universe) and
Se-605.
The only numbers from Se-605 are
the absolute magnitudes: they are somewhat
out of date, but no matter here.
- There is such a thing as
luminosity class
indicated by a Roman numeral after spectral
type. Main sequence stars are luminosity class V.
Only main sequence stars
For other special symbols accompanying spectral type
consult
SEDS.
- You can see that stars are bright because they have either
high luminosity (i.e., low absolute magnitude) or because they
are close.
Star density in space decreases with increasing luminosity,
and so, in fact, stars both very luminous and close are rare.
Depending on how you count these things, Canopus may be the only
such star.
One can see that apparent brightness is NOT a good guide to
relative distance.