astro.wikisort.org - Meteorite

41 Lyncis b (abbreviated 41 Lyn b), also designated HD 81688 b and named Arkas /ˈɑːrkəs/,[2] is an extrasolar planet approximately 280 light-years from Earth in the constellation of Ursa Major.

41 Lyncis b

Discovery
Discovered by	Sato et al.[1]
Discovery site	Okayama Planet Search Program, Japan
Discovery date	February 19, 2008
Detection method	radial velocity
Orbital characteristics
Semi-major axis	0.81 AU (121 million km)
Eccentricity	0
Orbital period (sidereal)	184.02 ± 0.18 d
Time of periastron	2,452,335.4 ± 1.1

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 a semi-major axis of 0.81 AU). It was discovered and announced by Bun'ei Sato on February 19, 2008.[1]

Name

In July 2014, the International Astronomical Union (IAU) launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.[3] The process involved public nomination and voting for the new names.[4] In December 2015, the IAU announced the name Arkas for this planet.[5] The winning name was submitted by the Okayama Astro Club of Japan. Arkas was the son of Callisto (Ursa Major) in Greek mythology.[6]

See also

• 18 Delphini b
• Xi Aquilae b

References

На других языках

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[de] Arkas (Exoplanet)

Arkas (HD 81688 b) ist ein Exoplanet, der den Unterriesen Intercrus alle 184 Tage umkreist. Auf Grund seiner Masse wird angenommen, dass es sich um einen Gasplaneten handelt.

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- [en] 41 Lyncis b

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[es] 41 Lyncis b

Arkas (también llamado HD 81688 b) es un planeta extrasolar de la categoría de los gigantes gaseosos que orbita a la estrella Intercrus. Tiene una masa mínima de 2,7 veces la de Júpiter y un período orbital de 184 días (correspondiente a un semieje mayor de 0,81 UA). Fue descubierto y anunciado por Sato el 19 de febrero de 2008.

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