HD 162020 is an orange dwarf star in Scorpius constellation with a brown dwarf companion.
HD 162020 b
HD 162020 b is a brown dwarf with mass 15.0 MJ. The mass is minimum since inclination is not known. This planetar orbits very close to the star at a distance of 0.075 AU. Despite of this, it has an eccentric orbit of 27.7%. The distance from the star ranges from 0.054 to 0.096 AU. It has an extremely high semi-amplitude of 1813 m/s. The discovery was announced on 4 May 2000 by the Geneva Extrasolar Planet Search Team.
1. ^ "Exoplanets Galore!". European Southern Observatory. 4 May 2000. http://www.eso.org/public/outreach/press-rel/pr-2000/pr-13-00.html. Retrieved 8 August 2009.
* Udry et al.; Mayor, M.; Naef, D.; Pepe, F.; Queloz, D.; Santos, N. C.; Burnet, M. (2002). "The CORALIE survey for southern extra-solar planets VIII. The very low-mass companions of HD 141937, HD 162020, HD 168443, HD 202206: Brown dwarfs or "superplanets"?". Astronomy and Astrophysics 390 (1): 267–279. doi:10.1051/0004-6361:20020685. http://www.aanda.org/articles/aa/full/2002/28/aa2416/aa2416.html.
* "Notes for star HD 162020". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+162020. Retrieved December 21, 2007.