2MASS J0249-0557

2MASS J0249-0557 AB

2MASS J0249-0557 AB and its companion
Credit: Legacy Surveys / D. Lang (Perimeter Institute) & Meli_thev
Observation data
Epoch J2000      Equinox J2000
Constellation Eridanus
Right ascension 02h 49m 56.39s
Declination −05° 57′ 35.43″
Characteristics
Evolutionary stage brown dwarf
Spectral type M6+L2[1]
Astrometry
Radial velocity (Rv)14.42 ±0.44[2] km/s
Proper motion (μ) RA: 48.795 ±0.067 mas/yr[3]
Dec.: -35.211 ±0.057 mas/yr[3]
Parallax (π)15.0946 ± 0.057 mas[3]
Distance216.1 ± 0.8 ly
(66.2 ± 0.3 pc)
Details[1]
2MASS J0249-0557 A
Mass48+13
−12 MJup
Luminosity (bolometric)10-2.59 ±0.09 L☉
2MASS J0249-0557 B
Mass44+14
−11 MJup
Luminosity (bolometric)10-2.64 ±0.09  L☉
Position (relative to 2MASS J0249-0557 A)[1]
Component2MASS J0249-0557 B
Angular distance0.0444 ±0.0002″
Position angle233.1 ±0.3°
Projected separation2.17 ±0.22 AU
Other designations
2MASS J02495639-0557352, SDSS J024956.41-055735.7, TIC 10930507, Gaia DR2 5183875103632956032
Database references
SIMBADdata
Exoplanet Archivedata

2MASS J0249-0557 (also known as 2MASS J02495639-0557352) is a young low-mass binary brown dwarf in the beta Pictoris moving group. It has one circumbinary planetary-mass companion, called 2MASS J0249-0557 (AB)c, or just 2MASS J0249-0557 c.[1]

  1. ^ a b c d Cite error: The named reference Dupuy2018 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Shkolnik2017 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Gaia EDR3 was invoked but never defined (see the help page).