Discovery [1] | |
---|---|
Discovered by | Sahlmann et al. (2013) |
Discovery site | ESO telescopes at the La Silla Paranal Observatory |
Discovery date | August 2013 |
Astrometry | |
Designations | |
2MASS J08230313-4912012 b [2] | |
Orbital characteristics [2] | |
0.36±0.01 AU | |
Eccentricity | 0.345+0.068 −0.064 |
246.36+1.38 −1.35 days | |
Inclination | 56.6+1.9 −2.1 deg |
36.3+7.2 −8.4 deg | |
Physical characteristics | |
Mass | 28.5±1.9 MJ [2] |
Temperature | 1670 |
Spectral type | L5.5 [3] |
DENIS-P J082303.1-491201 b (alias 2MASS J08230313-4912012 b) is a substellar object, classified as either an exoplanet or a brown dwarf, orbiting DENIS-P J082303.1-491201, [4] an L1.5-type brown dwarf in the constellation Vela. [2]
DENIS-P J082303.1-491201 b was discovered by Sahlmann et al. (2013) using the ESO telescopes at the La Silla Paranal Observatory. [1] It is part of an ultracool binary system. [1]
It is located 20.77 parsecs (67.7 ly) from Earth. At 28.5±1.9 MJ, [2] it is listed as among the most massive planets in the NASA Exoplanet Archive.
It orbits the nearby L1.5-type brown dwarf DENIS-P J082303.1-491201, which is 7.5±0.7% the mass of the Sun, [1] and has an orbital period of about 246 days. [1] [2]