# Effective temperatures, bolometric corrections, and luminosities as a 
# function of spectral type/color for Luminosity class V (main sequence)
# Taken from schmidt-kaler (1982) book on stars and star clusters (pg 453). 
# For the B-stars the color column is (U-B)_0
Sp  log_T_eff     T_eff[K]    (B-V)_0   M_V     B.C.     M_bol    L/L_sol  
B0      4.486        30000    -1.08    -4.0    -3.16    -7.1      5.2e4
B1      4.405        25400    -0.95    -3.2    -2.70    -5.9      1.6e4
B2      4.342        22000    -0.84    -2.4    -2.35    -4.7      5.7e3 
B3      4.271        18700    -0.71    -1.6    -1.94    -3.5      1.9e3
B5      4.188        15400    -0.58    -1.2    -1.46    -2.7      8.3e2 
B6      4.146        14000    -0.50    -0.9    -1.21    -2.1      500.0 
B7      4.115        13000    -0.43    -0.6    -1.02    -1.6      320.0
B8      4.077        11900    -0.34    -0.2    -0.80    -1.0      180.0 
B9      4.022        10500    -0.20    +0.2    -0.51    -0.3       95.0
A0      3.978         9520    -0.02     0.6    -0.30     0.3      54.0
A1      3.965         9230     0.01     1.0    -0.23     0.8      35.0
A2      3.953         8970     0.05     1.3    -0.20     1.1      26.0
A3      3.940         8720     0.08     1.5    -0.17     1.3      21.0
A5      3.914         8200     0.15     1.9    -0.15     1.7      14.0
A7      3.895         7850     0.20     2.2    -0.12     2.1      10.5  
A8      3.880         7580     0.25     2.4    -0.10     2.3       8.6
F0      3.857         7200     0.30     2.7    -0.09     2.6       6.5
F2      3.838         6890     0.35     3.6    -0.11     3.5       2.9
F5      3.809         6440     0.44     3.5    -0.14     3.4       3.2
F8      3.792         6200     0.52     4.0    -0.16     3.8       2.1
G0      3.780         6030     0.58     4.4    -0.18     4.2       1.5
G2      3.768         5860     0.63     4.7    -0.20     4.5       1.1
G5      3.760         5770     0.68     5.1    -0.21     4.9       0.79
G8      3.746         5570     0.74     5.5    -0.40     5.1       0.66
