12
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