HD 114783 b

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 114783 b
Extrasolar planet List of extrasolar planets
Parent star
Star HD 114783
Constellation Virgo
Right ascension (α) 13h 12m 43.786s[1]
Declination (δ) –02° 15′ 54.13″[1]
Distance 66.9 ± 0.8[1] ly
(20.5 ± 0.2[1] pc)
Spectral type K0V
Orbital elements
Semimajor axis (a) 1.169 ± 0.068 AU
Periastron (q) 1.070 AU
Apastron (Q) 1.268 AU
Eccentricity (e) 0.085 ± 0.033
Orbital period (P) 496.9 ± 2.3 d
(1.360 y)
Orbital speed (υ) 25.69 km/s
Argument of
periastron
(ω) 93 ± 25°
Time of periastron (T0) 2,450,840
±37 JD
Semi-amplitude (K) 30.2±0.75 m/s
Physical characteristics
Minimum mass (m sin i) 1.034 ± 0.089 MJ
(328.6 M)
Discovery information
Discovery date October 15, 2001
Discoverer(s) Vogt, Butler,
Marcy et al.
Discovery method Radial velocity
Discovery site Keck Observatory
Discovery status Published[2]
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data
Exoplanet Archive data
Open Exoplanet Catalogue data

HD 114783 b is an exoplanet that has a minimum mass almost exactly that of Jupiter. However, since the true mass is not known, it may be more massive, but not likely much. It orbits the star 20% further than Earth orbits the Sun. The orbit is quite circular.[2][3]

See also[edit]

References[edit]

  1. ^ a b c d van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b Vogt, Steven S. et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal 568 (1): 352–362. arXiv:astro-ph/0110378. Bibcode:2002ApJ...568..352V. doi:10.1086/338768. 
  3. ^ Butler, R. P. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. 

External links[edit]

Coordinates: Sky map 13h 12m 43.7860s, −02° 15′ 54.143″