sdB Comparison Table

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sdB comparison table

Subject has surface temperature is a kind of has absorption line has luminosity class has spectral type has definition has symbol has color

B star 11000 to 28000 K early star He I O, B, A, and early F Blue-white star of spectral type B whose spectra are characterized by absorption lines of neutral helium which reach their maximum intensity at B2. The Balmer lines of hydrogen are strong, and lines of singly ionized oxygen and other gases are also present. blue-white

subdwarf greater than 1000 Kelvin star VI Late-type object whose observed color and absolute magnitude place it below the Main Sequence. sd

sdB 11000 to 28000 K subdwarf He I VI Subdwarf B star with very broad and shallow Balmer lines; fewer lines of the Balmer series are visible than for normal dwarfs. sd blue-white

Subject	has surface temperature	is a kind of	has absorption line	has luminosity class	has spectral type	has definition	has symbol	has color
B star	11000 to 28000 K	early star	He I		O, B, A, and early F	Blue-white star of spectral type B whose spectra are characterized by absorption lines of neutral helium which reach their maximum intensity at B2. The Balmer lines of hydrogen are strong, and lines of singly ionized oxygen and other gases are also present.		blue-white
subdwarf	greater than 1000 Kelvin	star		VI		Late-type object whose observed color and absolute magnitude place it below the Main Sequence.	sd
sdB	11000 to 28000 K	subdwarf	He I	VI		Subdwarf B star with very broad and shallow Balmer lines; fewer lines of the Balmer series are visible than for normal dwarfs.	sd	blue-white

Next B star: Spica Up: B star, subdwarf Previous B star: Rigel