Английская Википедия:2MASS J15031961+2525196

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Шаблон:Short description Шаблон:Sky Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox image Шаблон:Starbox end

2MASS J15031961+2525196 (2MASS 1503+2525) is a nearby brown dwarf of spectral type T5.5,Шаблон:R located in the constellation of Boötes at approximately 20.7 light-years from Earth.Шаблон:R

History of observations

Discovery

2MASS 1503+2525 was discovered in 2003 by Adam J. Burgasser et al. in wide-field search for T dwarfs using the Two Micron All Sky Survey (2MASS).

Distance

Originally the most precise distance estimate of 2MASS 1503+2525 is a trigonometric parallax, published by Dupuy and Liu in 2012: 157.2 ± 2.2 mas, corresponding to a distance 6.36 ± 0.09 pc, or 20.7 ± 0.3 ly.Шаблон:R The parallax was further refined by Gaia mission in 2018 to 154.9208Шаблон:±mas. The brown dwarf 2MASS 1503+2525 lies in local void 6.5 parsecs across, where relatively few stars and brown dwarfs are located.[1]

Physical properties

The 2MASS J15031961+2525196 is the spectral standard of the spectral class T5.[2]

References

Шаблон:Reflist

Шаблон:Boötes


Шаблон:Brown-dwarf-stub