79 Ceti b

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79 Ceti b
Exoplanet List of exoplanets
Parent star
Star 79 Ceti
Constellation Cetus
Right ascension (α) 02h 35m 19.93s[1]
Declination (δ) −03° 33′ 38.2″[1]
Distance 127 ± 3[1] ly
(39 ± 1[1] pc)
Spectral type G5IV
Orbital elements
Semi-major axis (a) 0.363±0.021 AU
Eccentricity (e) 0.252±0.052
Orbital period (P) 75.523±0.055 d
Argument of
(ω) 42±14°
Time of periastron (T0) 2,450,338.0±3.0 JD
Semi-amplitude (K) 11.99±0.87 m/s
Physical characteristics
Mass (m) >0.260±0.028 MJ
Discovery information
Discovery date March 29, 2000
Discoverer(s) Marcy et al.
Discovery method Doppler Spectroscopy
Discovery site Calif., USA
Discovery status Published

79 Ceti b (also known as HD 16141 b) is an extrasolar planet orbiting its star every 75 days. With HD 46375 b on March 29, 2000, it was the joint first known extrasolar planet to have minimum mass less than the mass of Saturn.[2]

See also[edit]


  1. ^ a b c d van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ Marcy, Geoffrey W.; et al. (2000). "Sub-Saturn Planetary Candidates of HD 16141 and HD 46375". The Astrophysical Journal Letters. 536 (1): L43–L46. arXiv:astro-ph/0004326Freely accessible. Bibcode:2000ApJ...536L..43M. doi:10.1086/312723. 

External links[edit]

Coordinates: Sky map 02h 35m 19.9283s, −03° 33′ 38.167″