HD 5319 b

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 5319 b
Extrasolar planet List of extrasolar planets
Parent star
Star HD 5319
Constellation Cetus
Right ascension (α) 00h 55m 01.40s[1]
Declination (δ) +00° 47′ 22.4″[1]
Apparent magnitude (mV) 8.05
Distance 370 ± 40[1] ly
(110 ± 10[1] pc)
Spectral type K0III
Orbital elements
Semimajor axis (a) 1.74 AU
(260 Gm)
    17.4 mas
Periastron (q) 1.53 AU
(229 Gm)
Apastron (Q) 1.95 AU
(292 Gm)
Eccentricity (e) 0.12
Orbital period (P) 669.37 d
(1.8326 y)
Argument of
periastron
(ω) 103 ± 14°
Time of periastron (T0) 2,453,163 ± 30 JD
Semi-amplitude (K) 39.4 m/s
Physical characteristics
Minimum mass (m sin i) 1.94 MJ
(617 M)
Discovery information
Discovery date January 11, 2007
Discoverer(s) Robinson et al.[2]
Discovery method Doppler spectroscopy
Discovery site California & Carnegie
Planet Search
Discovery status Published[2]
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data

HD 5319 b is a gas giant exoplanet approximately 370 light years away[1] in the constellation of Cetus. This planet has a minimum mass nearly two times more than Jupiters. The planet has an almost circular orbit, ranging from 1.53 to 1.95 AU with a period of 1.8 years.[2]

See also[edit]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b c Robinson, Sarah E. et al. (2007). "Two Jovian-Mass Planets in Earthlike Orbits". The Astrophysical Journal 670 (2): 1391–1400. arXiv:0708.0832. Bibcode:2007ApJ...670.1391R. doi:10.1086/522106. 

Coordinates: Sky map 00h 55m 01.4005s, +00° 47′ 22.392″