DENIS-P J082303.1-491201 b

From Wikipedia, the free encyclopedia
Jump to: navigation, search
DENIS-P J082303.1-491201 b[1][2]
Discovered by Sahlmann et al., 2013[1]
Discovery site ESO telescopes at the La Silla Paranal Observatory[1]
Discovery date August, 2013[1]
Astrometry Transit
2MASS J08230313-4912012 b[2]
Orbital characteristics
Eccentricity 0.345+0.068
Inclination 56.6+1.9
Physical characteristics
Mass 28.5+1.9
Jupiter masses[2]

DENIS-P J082303.1-491201 b (or alias 2MASS J08230313-4912012 b) is an exoplanet (extrasolar planet) / brown dwarf orbiting DENIS-P J082303.1-491201,[3] an L1.5-type brown dwarf. As of March 2014, DENIS-P J082303.1-491201 b, with a mass of nearly 29 Jupiter masses, is listed as the most massive exoplanet so far discovered.[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]



DENIS-P J082303.1-491201 b is located 20.77 pc (about 67.7 light years or 642 trillion km or 399 trillion miles) from Earth. At 28.5+1.9
Jupiter masses,[2] it is listed as the most massive planet in the NASA Exoplanet Archive, although, according to most definitions of planet, this object is too massive to be a planet and is more properly classified as a brown dwarf instead.


DENIS-P J082303.1-491201 b orbits a nearby L1.5-type brown dwarf DENIS-P J082303.1-491201 (having 7.5+0.7
 % of the Sun's mass),[1] with a period of about 246 days.[1][2]

See also[edit]


  1. ^ a b c d e f g h i Sahlmann, J.; Lazorenko, P. F.; Ségransan, D.; Martín, E. L.; Queloz, D.; Mayor, M.; Udry, S. (August 2013). "Astrometric orbit of a low-mass companion to an ultracool dwarf". Harvard University. arXiv:1306.3225. Retrieved 8 March 2014. 
  2. ^ a b c d e f g h i j k Staff. "DENIS-P J082303.1-491201 b". Caltech. Retrieved 8 March 2014. 
  3. ^ Staff (8 March 2014). "DENIS-P J082303.1-491201". SIMBAD. Retrieved 8 March 2014. 

External links[edit]