6 Lyncis b

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 MJ. 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.

6 Lyncis b
Radial velocity changes over time of 6 Lyncis caused by the orbit of 6 Lyncis b.
Discovery[1]
Discovered bySato et al.
Discovery siteOkayama Astrophysical Observatory
Discovery date2008
Doppler spectroscopy
Orbital characteristics[2]
2.11±0.11 AU
Eccentricity0.073±0.036
934.3±8.6 d
2455384±94 JD
130±38 º
Semi-amplitude32.8±1.2 m/s
Star6 Lyncis
Physical characteristics[2]
Mass≥2.010±0.077 MJ

    See also

    References
    1. 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.
    2. 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.


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