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28. G2

The spectral type is determined by the ratios lambda 4045: Hdelta and lambda 4226: Hgamma. Luminosity line ratios are lambda 4077: lambda 4226 and lambda 4077: lambda 4045.

TABLE 23
STANDARDS AT G2

Star MKK a delta m HD

lambda Aur.... G2 IV-V 05:12 +40°01' 4.9 G0
beta Lep.... G2 II 05:24 -20 50 3.0 G0
µ Cnc..... G2 IV 08:01 +21 52 5.4 G0
lambda Ser..... G2 V 15:41 +07 40 4.4 G0
eta Peg..... G2 II-III 22:38 +29 42 3.1 G0
pi Cep..... G2 III 23:04 +74 51 4.6 G5