HD 32518 b

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 32518 b
Exoplanet List of exoplanets
Parent star
Star HD 32518
Constellation Camelopardalis
Right ascension (α) 05h 09m 36.72s[1]
Declination (δ) +69° 38′ 21.9″[1]
Apparent magnitude (mV) 6.436
Distance 390 ± 30[1] ly
(121 ± 8[1] pc)
Spectral type K1III
Orbital elements
Semi-major axis (a) 0.59 ± 0.03 AU
Periastron (q) 0.58 AU
Apastron (Q) 0.60 AU
Eccentricity (e) 0.01 ± 0.03
Orbital period (P) 157.54 ± 0.38 d
(0.4313 ± 0.001 y)
Argument of
periastron
(ω) 306.11 ± 126.71°
Time of periastron (T0) 2452950.29 ± 13.66 JD
Physical characteristics
Minimum mass (m sin i) 3.04 ± 0.69 MJ
Discovery information
Discovery date August 12, 2009
Discoverer(s) Döllinger et al.
Discovery method Radial velocity
Discovery site TLS
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data
Exoplanet Archive data
Open Exoplanet Catalogue data

HD 32518 b is an extrasolar planet which orbits the K-type giant star HD 32518, located approximately 383 light years away in the constellation Camelopardalis. It has a minimum mass three times greater than Jupiter and orbits the intermediate-mass giant star at a distance of only 0.59 AU in a very circular orbit. The orbit takes 10.35 months to complete one round trip around the star.[2] This planet was detected by the radial velocity method on August 12, 2009.

References[edit]

  1. ^ a b c d van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752Freely accessible. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ Döllinger, P.; et al. (2009). "Planetary companions around the K giant stars 11 Ursae Minoris and HD 32518". Astronomy and Astrophysics. 505 (3): 1311–1317. Bibcode:2009A&A...505.1311D. arXiv:0908.1753Freely accessible. doi:10.1051/0004-6361/200911702. 

Coordinates: Sky map 05h 09m 36.7193s, +69° 38′ 21.844″