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Analysis and Interpretation of Astronomical Spectra                                 111

B3 –1.1

B5  –0.4  δ Per                                      –3.0 Aludra, η Cma   –7.5

B6 0

B7 0.3 Alcione, η Tau –2.5

B8  0.7   Atlas, 27 Tau –2.0 Rigel, β Ori                                 –6.7

B9 1.1

A0 1.5

A1 1.7

A2 1.8                                                     Deneb, α Cyg   –8.7

A3 2.0

A4 2.1

A5  2.2 α Oph,                                       1.2

A7  2.4 γ Boo,                                       1.0

F0 3.0 Adhafera, ζ Leo –1.0

F2  3.3   Caph, β Cas                                1.2

F3 3.5

F5 3.7                                                     Mirfak, α Per  –4.5

F6 4.0

F7 4.3

F8 4.4                                                     Wezen, δ CMa –6.9

G0 4.7                                                     Sadalsuud, β Aqr –3.3

G1 4.9

G2 5.0                                                     Sadalmelik, α Aqr –3.9

G5 5.2

G7 Kornephoros, β Her –0.5

G8 5.6 Vindemiatrix, ε Vir 0.4

K0  6.0   Dubhe, α Uma                               –1.1

K1 6.2

K2  6.4   Cebalrai, β Oph                            0.8

K3 6.7

K4 7.1

K5 7.4 Aldebaran, α Tau –0.7

K7 8.1 Alsciaukat, α Lyn –1.1

M0 8.7

M1  9.4   Scheat, β Peg                              –1.5 Antares, α Sco –5.3

M2 10.1                                                    Betelgeuse, α Ori –5.3

M3 10.7

M4 11.2

M5 12.3                                                    Ras Algethi, α Her –2.3

M6 13.4

M7 13.9

M8 14.4
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