Astronomical Star Colours

Spectral

TYPE

0

B

A

F

G

K

M

Colour

Blue

Bluish

White

White Yellowish

White

Yellow Orange Red
Temperature

Degrees C

30.000 21,000 10,000 7,500 6,000 4,700 3,300
Main

Chemicals

Helium Helium Hydrogen Calcium Metals Hydrocarbons Complex

Mix

Star

Examples

Zeta

Orionis

Spica

Achernar

Altair

Sirius

Canopus

Procyon

Sun

Capella

Aldebaran

Pollux

Arcturus

Antares

|Diagram of clockface with approximate colors|
|Diagram of Frequency to Wavelength connection|
|Diagram of harmonic colours|

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