K Stars
K stars are characterized by having lots of metals, hydrogen is weak. The stars are cool enough
for some molecular bands to become prominent, CH, and the MgH break in particular. Some weak TiO
in the later K's.
K0V
K3V
K1IV
K0III
K0III
K2III
K3III
K4III
K5III
K0II
K1II
K2II
K3IIb
K3IIab
K3IIab
K3Ib
K Ba
K Ba