HD 23127 b

HD 23127 b
Exoplanet List of exoplanets
Parent star
Star HD 23127
Constellation Reticulum
Right ascension (α) 03h 39m 23.639s
Declination (δ) –60° 04 40.230
Apparent magnitude (mV) 8.58
Distance290.73 ly
(89.14 pc)
Spectral type G2V
Orbital elements
Semi-major axis(a) 2.29 AU
(343 Gm)
    25.7 mas
Periastron (q) 1.28 AU
(192 Gm)
Apastron (Q) 3.30 AU
(493 Gm)
Eccentricity (e) 0.44 ± 0.07
Orbital period(P) 1214 ± 9 d
(3.32 y)
Argument of
periastron
(ω) 190 ± 6°
Time of periastron (T0) 2,400,229 ± 19 JD
Semi-amplitude (K) 27.5 ± 1 m/s
Physical characteristics
Minimum mass(m sin i)1.37 MJ
Discovery information
Discovery date February 9, 2007
Discoverer(s) O'Toole et al.
Discovery method radial velocity
Discovery site  Australia
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 23127 b is a jovian extrasolar planet orbiting the star HD 23127 at the distance of 2.29 AU, taking 3.32 years to orbit. The orbit is very eccentric, a so-called "eccentric Jupiter". At periastron, the distance is 1.28 AU, and at apastron, the distance is 3.30 AU. The mass is at least 1.37 times Jupiter. Only the minimum mass is known because the inclination is not known.[1]

References

  1. O'Toole, Simon J.; et al. (2007). "New Planets around Three G Dwarfs". The Astrophysical Journal 660 (2): 1636–1641. arXiv:astro-ph/0702213. Bibcode:2007ApJ...660.1636O. doi:10.1086/513563.

Coordinates: 03h 39m 23.639s, −60° 04′ 40.230″

This article is issued from Wikipedia - version of the Friday, December 19, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.