(small, cool main-sequence star)
A red dwarf is a small M-type star (M dwarf).
Sometimes the term is used to include K-type stars (K dwarfs),
but those can be referred to as orange dwarfs.
The mass range is from 0.075 to about 0.5 solar mass.
The surface temperature is 2000-4000 K.
Red dwarfs make up about 75% of the stars in the Milky Way,
and many of the nearest stars are red dwarfs. They have become
of interest in the search for habitable extra-solar planets because
there are so many (thus host many planets), so many are close
(allowing planet study), and their relative dimness is conducive
to direct imaging of the planets.
Red dwarf examples:
Referenced by pages:
AD Leonis (AD Leo)
California-Kepler Survey (CKS)
Gliese-Jahreiss Catalog (GJ)
Gliese 436 b (GJ 436 b)
HD 189733 b
L-type star (L)
LHS 3844 b
low mass star (LMS)
main sequence star (MS)
M-type star (M)
MEarth Project (MEarth)
rare designator prefixes
red-giant branch (RGB)
TOI 700 d