K subgiant stars
Evolved stars
G subgiant stars
F subgiant stars
O subgiant stars
Subgiant stars
A star with a lower absolute magnitude than a normal giant star of its spectral type. It is a star that has exhausted the hydrogen at its center and is evolving into a red giant. Subgiants are luminosity class IV.
Subgiants
M subgiant stars
B subgiant stars
A subgiant stars