41 Lyncis b
|Exoplanet||List of exoplanets|
|Right ascension||(α)||09h 28m 40s|
|Declination||(δ)||+45° 36′ 05″|
|Distance||287.9 ± 26 ly
(88.26 ± 8 pc)
|Semi-major axis||(a)||0.81 AU
|Orbital period||(P)||184.02 ± 0.18 d
|Time of periastron||(T0)||2,452,335.4 ± 1.1 JD|
|Minimum mass||(m sin i)||2.7 MJ|
|Discovery date||February 19, 2008|
|Discoverer(s)||Sato et al.|
|Discovery method||radial velocity|
|Discovery site||Okayama Planet
Arkas, HD 81688 b
|Open Exoplanet Catalogue||data|
A gas giant with a minimum mass 2.7 times that of Jupiter it orbits the K-type star 41 Lyncis with an orbital period of 184 days (corresponding to semi-major axis of 0.81 AU). It was discovered and announced by Sato on February 19, 2008.
In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the name Arkas for this planet. The winning name was submitted by the Okayama Astro Club of Japan. Arkas was the son of Callisto (Ursa Major) in Greek mythology.
- Sato, Bun'ei; et al. (2008). "Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688". Publications of the Astronomical Society of Japan. 60 (3): 539–550. arXiv: . Bibcode:2008PASJ...60..539S. doi:10.1093/pasj/60.3.539.
- NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
- NameExoWorlds The Process
- Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
- NameExoWorlds The Approved Names
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