41 Lyncis b

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41 Lyncis b
Extrasolar planet List of extrasolar planets
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.[1]
Discovery method radial velocity
Discovery site Okayama Planet
Search Program

Discovery status Published[1]
Other designations
HD 81688 b
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue 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.[1]

See also[edit]


  1. ^ a b c 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:0802.2590. Bibcode:2008PASJ...60..539S. doi:10.1093/pasj/60.3.539. 

Coordinates: Sky map 09h 28m 40s, +45° 36′ 05″