spectral class
class of stars based on their spectral characteristics
red dwarf
type of small and relatively-cool star
pre-main-sequence star
star in the stage when it has not yet reached the main sequence
Y-type brown dwarf
stellar classification of brown dwarf stars that are cooler than standard T-type dwarfs
blue giant
stars of early spectral type
Hayashi track
luminosity-temperature relationship obeyed by infant stars
G-type star
stellar classification
S-type star
cool giant with approximately equal quantities of carbon and oxygen in its atmosphere
A-type star
stellar classification
instability strip
stellar classification
B-type main sequence star
stellar classification
B-type star
stellar classification
white dwarf
type of stellar remnant composed mostly of electron-degenerate matter
M-type star
stellar classification
T-type brown dwarf
stellar classification of brown dwarf stars with prominent methane signatures
F-type star
stellar classification
K-type star
stellar classification
L-type dwarf star
stellar classification of red or brown dwarf stars that are cooler than standard M-type dwarfs
Herbig Ae/Be star
young star of spectral types A and B
O-type star
stellar classification