K2IV ~

Temperature						Luminosity
Type	Class	Value	Temperature	Details		Type	Class	Details		Pecularities	Quality
Harvard	K	2	4700 K	Harvard spectral value is 2 with class Harvard spectral class K with effective temperature [3500, 5000] ; absorptions [Metals, TiO]		Yerkes	IV	Yerkes spectral luminosity with class IV: subgiant			~

COBREX simplification = K2 ~

Temperature
Type	Class	Value	Temperature	Details		Quality
Harvard	K	2	4700 K	Harvard spectral value is 2 with class Harvard spectral class K with effective temperature [3500, 5000] ; absorptions [Metals, TiO]		~

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