Manganese stars
Mercury-manganese stars
Chemically peculiar giant stars
Peculiar variable stars
Stellar types
Strontium stars
Technetium stars
Bp stars
Zirconium stars
Shell stars
Carbon stars
CEMP stars
Metal-rich stars
CP stars
Main sequence stars of spectral type A or B identified by the presence of anomalously strong or weak absorption lines of certain elements in their spectra. CP stars have been divided into four main classes on the basis of their spectra: 1) non-magnetic metallic-lined (CP1, Am star), magnetic (CP2, Ap star), non-magnetic mercury-manganese (CP3, HgMn star), and helium-weak (CP4, He-weak star).
Chemically peculiar stars
Am stars
Ap stars
Heavy metal stars
Helium-rich stars
Helium-weak stars
Hydrogen deficient stars
Lithium stars
Magnetic stars