DENIS-P J082303.1-491201 b
| Discovery | |
|---|---|
| Discovered by | Sahlmann et al. (2013) |
| Discovery site | ESO telescopes at the La Silla Paranal Observatory |
| Discovery date | August 2013 |
| Transit photometry | |
| Designations | |
| 2MASS J08230313-4912012 b | |
| Orbital characteristics | |
| 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 |
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, an L1.5-type brown dwarf in the constellation Vela. As of March 2014[update], DENIS-P J082303.1-491201 b, with a mass of nearly 29 MJ, is listed as the most massive exoplanet so far discovered.
DENIS-P J082303.1-491201 b was discovered by Sahlmann et al. (2013) using the ESO telescopes at the La Silla Paranal Observatory. It is part of an ultracool binary system.
DENIS-P J082303.1-491201 b is located 20.77 parsecs (67.7 ly) from Earth. At 28.5±1.9 MJ, it is listed as the most massive planet in the NASA Exoplanet Archive, although, according to most definitions, this object is too massive to be a planet and is more properly classified as a brown dwarf.
DENIS-P J082303.1-491201 b orbits the nearby L1.5-type brown dwarf DENIS-P J082303.1-491201, which is 7.5±0.7% the mass of our Sun, and has an orbital period of about 246 days.
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