2
Classification of stars
•
•
O B A F G K M
scheme
–
Originally in order of H strength – A,B,etc
Above order is for decreasing temperature
–
Standard mnemonic:
Oh, Be A Fine Girl
(Guy), Kiss Me
–
Use numbers for finer divisions:
A0, A1, ...
A9, F0, F1, ... F9, G0, G1, ...
From our text:
Horizons, by Seeds