41 Lyncis b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | 41 Lyncis | |
| Constellation | Ursa Major | |
| Right ascension | (α) | 09h 28m 40s |
| Declination | (δ) | +45° 36′ 05″ |
| Apparent magnitude | (mV) | 5.41 |
| Distance | 287.9 ± 26 ly (88.26 ± 8 pc) |
|
| Spectral type | K0III-IV | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.81 AU (122 Gm) |
| Eccentricity | (e) | 0 |
| Orbital period | (P) | 184.02 ± 0.18 d (0.50381 y) |
| Time of periastron | (T0) | 2,452,335.4 ± 1.1 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 2.7 MJ |
| Discovery information | ||
| Discovery date | February 19, 2008 | |
| Discoverer(s) | Sato et al.[1] | |
| Discovery method | radial velocity | |
| Discovery site | Okayama Planet Search Program  Japan |
|
| Discovery status | Published[1] | |
| Other designations | ||
|
Arkas, HD 81688 b
|
||
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
41 Lyncis b (abbreviated 41 Lyn b), also designated HD 81688 b and named Arkas, is an extrasolar planet approximately 249 light years from Earth in the constellation of Ursa Major.
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.[1]
In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their host stars.[2] The process involved public nomination and voting for the new names.[3] In December 2015, the IAU announced the name Arkas for this planet.[4] The winning name was submitted by the Okayama Astro Club of Japan. Arkas was the son of Callisto (Ursa Major) in Greek mythology.[5]
See also
References
- ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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
Coordinates: 
09h 28m 40s, +45° 36′ 05″
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