6_Lyncis_b Knowpia

6 Lyncis b
	Radial velocity changes over time of 6 Lyncis caused by the orbit of 6 Lyncis b.
Discovery
Discovered by	Sato et al.
Discovery site	Okayama Astrophysical Observatory
Discovery date	2008
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	2.11±0.11 AU
Eccentricity	0.073±0.036
Orbital period (sidereal)	934.3±8.6 d
Time of perihelion	2455384±94 JD
Argument of perihelion	130±38 º
Semi-amplitude	32.8±1.2 m/s
Star	6 Lyncis
Physical characteristics
Mean radius	1.209 RJ
Mass	≥2.010±0.077 MJ

6 Lyncis b (abbreviated 6 Lyn b) is an extrasolar planet orbiting the K-type subgiant star 6 Lyncis which is approximately 182 light years away in the Lynx constellation. The planet has a minimum mass 2.4 M_J. The orbital period for this planet is 899 days, or 2.46 years. The orbital radius for this planet is 2.2 AU, periastron 1.9 AU, and apastron 2.5 AU, corresponding to the orbital eccentricity of 0.134.^[1] This planet was discovered on July 3, 2008 by Sato et al., who used Doppler spectroscopy to find variations of the line of sight motion of the star caused by the planet’s gravity during its orbit.

References edit

^ ^a ^b Sato, Bun'ei; et al. (2008). "Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042". Publications of the Astronomical Society of Japan. 60 (6): 1317–1326. arXiv:0807.0268. Bibcode:2008PASJ...60.1317S. doi:10.1093/pasj/60.6.1317.
^ ^a ^b Luhn, Jacob K.; et al. (2019). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal. 157 (4). 149. arXiv:1811.03043. Bibcode:2019AJ....157..149L. doi:10.3847/1538-3881/aaf5d0. S2CID 102486961.

Jean Schneider (2011). "Notes for Planet 6 Lyn b". Extrasolar Planets Encyclopaedia. Retrieved 8 October 2011.
"6 Lyncis". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-06.

Discovery^[1]
Radial velocity changes over time of 6 Lyncis caused by the orbit of 6 Lyncis b.
Discovered by	Sato et al.
Discovery site	Okayama Astrophysical Observatory
Discovery date	2008
Detection method	Doppler spectroscopy
Orbital characteristics^[2]
Semi-major axis	2.11±0.11 AU
Eccentricity	0.073±0.036
Orbital period (sidereal)	934.3±8.6 d
Time of perihelion	2455384±94 JD
Argument of perihelion	130±38 º
Semi-amplitude	32.8±1.2 m/s
Star	6 Lyncis
Physical characteristics^[2]
Mean radius	1.209 R_J
Mass	≥2.010±0.077 M_J