HD 117207 b

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HD 117207 b
Exoplanet List of exoplanets
Parent star
Star HD 117207
Constellation Centaurus
Right ascension (α) 13h 29m 21.1137s
Declination (δ) −35° 34′ 15.589″
Distance 108 ly
(33 pc)
Spectral type G7IV-V
Orbital elements
Semi-major axis (a) 3.79 AU
Periastron (q) 3.24 AU
Apastron (Q) 4.34 AU
Eccentricity (e) 0.144±0.035
Orbital period (P) 2597±41 d
(7.110 y)
Orbital speed (υ) 15.9 km/s
Argument of
(ω) 81.7±19.9°
Time of periastron (T0) 2450666.43±148.89 JD
Semi-amplitude (K) 26.6±0.93 m/s
Physical characteristics
Minimum mass (m sin i) 1.88 MJ
Discovery information
Discovery date 25 January 2005
Discoverer(s) Marcy et al.
Discovery method radial velocity
Discovery site Keck Observatory
Discovery status Published
Other designations
HIP 65808 b
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue data

HD 117207 b is an extrasolar planet orbiting at 3.79 astronomical units taking about 2597 days to complete its orbit around HD 117207. Its orbit is moderate in eccentricity. This planet was announced in January 2005 by Marcy in Keck Observatory. The planet has at least 1.88 Jupiter masses.[1][2]


  1. ^ Marcy, Geoffrey W.; et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode:2005ApJ...619..570M. doi:10.1086/426384. 
  2. ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493Freely accessible. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. 

External links[edit]

Coordinates: Sky map 13h 29m 21.1137s, −35° 34′ 15.589″