Keenan Atlas of Cooler Stellar Spectra

Stellar Spectra across Draper (G,K,M,S, and C)  and Luminosity Classes

Philip C. Keenan and Raymond C. McNeil: Ohio State University Press

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Main Sequence
G0 V to K7 V		 Giant Sequence
F8III to K5 III		 Supergiants
G0 to M4.5		 Supergiants Ia
G9 to M4.5
Luminosity Sequence
G2 		 G Type Stars
with Broad Lines		 Luminosity Sequence at G5 Luminosity Sequence at G8
Giants with Unusual Intensity in G Band Stars with Weak CN and Metal Lines Giants
Weak Line vs Normal		 Barium  & Semi Barium
G8 to K0
K0 Ib:p Ca-1
K0 Ib		 Luminosity Sequence
near K2		 Giants with Strong or Weak CN near K2 Giants & Subgiants
K1 and K2.5
Luminosity Sequence
near K5		 Dwarfs
M0 to M5.5		 Early M Dwarfs and a Peculiar Subdwarf Giants
K5 to M8
Luminosity Sequence
near M2		 Luminosity Sequence
near M4-M5		 M5 III M6e SRa M5e SRa M5.5e M M5e M M6 - M6S 
to S6
Temperature Effects
Ba and S Type Stars		 Transition G & K Giants to Carbon Stars Temp. Sequence of
Red Carbon Stars		 Carbon Stars with
Strong/Weak CH Band
Carbon Isotope Bands
in Blue and Red		 Two Southern
SC Stars		 SC Stars
in Red Region		 C4.5-SC7
SC and Carbon Stars




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