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.
 Radial velocity changes over time of 6 Lyncis caused by the orbit of 6 Lyncis b. | |
| Discovery[1] | |
|---|---|
| Discovered by | Sato et al. |
| Discovery site | Okayama Astrophysical Observatory |
| Discovery date | 2008 |
| Doppler spectroscopy | |
| Orbital characteristics[2] | |
| 2.11±0.11 AU | |
| Eccentricity | 0.073±0.036 |
| 934.3±8.6 d | |
| 2455384±94 JD | |
| 130±38 º | |
| Semi-amplitude | 32.8±1.2 m/s |
| Star | 6 Lyncis |
| Physical characteristics[2] | |
| 1.209 RJ | |
| Mass | ≥2.010±0.077 MJ |
See also
editReferences
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.
External links
edit- 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.
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