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What (who) is B-type main-sequence star - definition
B-type main-sequence star
![Carina]], [[Epsilon Carinae]] is an example of a [[double star]] featuring a main-sequence B-type star. The primary is an evolved giant star with a stellar classification of K0 III, hence its yellowish color. The secondary is a typical core hydrogen-fusing B-type main sequence star of spectral class B2 Vp.](https://commons.wikimedia.org/wiki/Special:FilePath/Avior.png?width=200 "Carina]], [[Epsilon Carinae]] is an example of a [[double star]] featuring a main-sequence B-type star. The primary is an evolved giant star with a stellar classification of K0 III, hence its yellowish color. The secondary is a typical core hydrogen-fusing B-type main sequence star of spectral class B2 Vp.")
STELLAR CLASSIFICATION
Blue-white dwarfs; Blue-white dwarf; B v star; B-type star; B V star; B-type main sequence; B type main-sequence star; B-type main sequence star; B-type main-sequence stars; B main-sequence star
A B-type main-sequence star (B V) is a main-sequence (hydrogen-burning) star of spectral type B and luminosity class V. These stars have from 2 to 16 times the mass of the Sun and surface temperatures between 10,000 and 30,000 K.
F-type main-sequence star
STELLAR CLASSIFICATION
Yellow-white dwarfs; Yellow-white dwarf; F-type star; F v star; F-type main sequence; F-type dwarf; F V star; F-type main sequence star; F-type main-sequence stars; Class F star
An F-type main-sequence star (F V) is a main-sequence, hydrogen-fusing star of spectral type F and luminosity class V. These stars have from 1.
G-type main-sequence star
STELLAR CLASSIFICATION
Yellow dwarfs; G-type star; G v star; Sunlike; G-type main sequence; Type-G star; G-type dwarf; G V star; G-dwarf; G-type main sequence star; G2V; Yellow dwarf star; G type stars; Class G stars; G-type main-sequence stars; Yellow main sequence; Class G star; Yellow Dwarf (star)
A G-type main-sequence star (Spectral type: G-V), also often, and imprecisely called a yellow dwarf, or G star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.
