A2IV C

Temperature						Luminosity
Type	Class	Value	Temperature	Details		Type	Class	Details		Pecularities	Quality
Harvard	A	2	9500 K	Harvard spectral value is 2 with class Harvard spectral class A with effective temperature [7500, 10000] ; absorptions [H]		Yerkes	IV	Yerkes spectral luminosity with class IV: subgiant			C

COBREX simplification = A2 C

Temperature
Type	Class	Value	Temperature	Details		Quality
Harvard	A	2	9500 K	Harvard spectral value is 2 with class Harvard spectral class A with effective temperature [7500, 10000] ; absorptions [H]		C

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