41 Lyncis b

41 Lyncis b

Extrasolar planet		List of extrasolar planets
Artistic rendering of HD 81688 b
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
Semimajor 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.
Detection method		radial velocity
Discovery site		Okayama Planet Search Program Japan
Discovery status		Published
Other designations
HD 81688 b
Database references
Extrasolar Planets Encyclopaedia		data
SIMBAD		data

41 Lyncis b (also called HD 81688 b) is a gas giant exoplanet that orbits the star 41 Lyncis. It has a minimum mass of 2.7 times that of Jupiter and 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.

See also

• 18 Delphini b
• Xi Aquilae b

References

• Sato et al.; Izumiura, Hideyuki; Toyota, Eri; Kambe, Eiji; Ikoma, Masahiro; Omiya, Masashi; Masuda, Seiji; Takeda, Yoichi 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. Bibcode 2008PASJ...60..539S. http://pasj.asj.or.jp/v60/n3/600314/600314a.html.  (web preprint)