K2:e+M0.5e ~

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] unknown luminosity e ~
Binary companion star M0.5e ~

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