Astrophysics (index)about

Y-type star

(Y, Y-class star, Y dwarf)
(type of dwarf with a temperature less than 700K)

A Y-type star (Y-class star or Y dwarf) is a star in the Y-class, a spectral class for brown dwarves cooler than T-type stars. Other than that, their spectra is not well-characterized. As of 2011, six bodies are known that fit the criteria. Characteristics:

dark brownconventional color
under 700Ksurface temperature

(star type,spectral type)

Referenced by:
brown dwarf (BD)
spectral class
ultracool dwarf