B0IVe ~

Temperature						Luminosity
Type	Class	Value	Temperature	Details		Type	Class	Details		Pecularities	Quality
Harvard	B	0	30000 K	Harvard spectral value is 0 with class Harvard spectral class B with effective temperature [10000, 30000] ; absorptions [He, H]		Yerkes	IV	Yerkes spectral luminosity with class IV: subgiant		e	~

COBREX simplification = B0 ~

Temperature
Type	Class	Value	Temperature	Details		Quality
Harvard	B	0	30000 K	Harvard spectral value is 0 with class Harvard spectral class B with effective temperature [10000, 30000] ; absorptions [He, H]		~

Ref: An Encoding System to Represent Stellar Spectral Classes in Archival Databases and Catalogs Version 1.4