HD 129445 b

HD 129445 b
Exoplanet List of exoplanets
Parent star
Star HD 129445
Constellation Circinus
Right ascension (α) 14h 46m 03.064s[1]
Declination (δ) –68° 45′ 45.89″[1]
Apparent magnitude (mV) 8.8
Distance210 ± 20[1] ly
(66 ± 5[1] pc)
Spectral type G8V
Mass (m) 0.99 M☉
Metallicity [Fe/H] 0.25
Orbital elements
Semi-major axis(a) 2.9 ± 0.2 AU
(440 Gm)
    43 mas
Periastron (q) 0.9 AU
(130 Gm)
Apastron (Q) 5.0 AU
(750 Gm)
Eccentricity (e) 0.70 ± 0.10
Orbital period(P) 1840 ± 55 d
(5.04 y)
Orbital speed (υ) 17 km/s
Argument of
periastron		 (ω) 163 ± 15°
Time of periastron (T0) 24553093 ± 50 JD
Semi-amplitude (K) 38 ± 6 m/s
Physical characteristics
Minimum mass(m sin i)1.6 ± 0.6 MJ
Discovery information
Discovery date January 26, 2010
Discoverer(s) Arriagada et al.[2]
Discovery method Doppler spectroscopy
Discovery site Las Campanas Observatory
Discovery status Published[2]
Other designations
CD–68°1403 b, HIP 72203 b
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

This planet is an eccentric Jupiter gas giant orbiting HD 129445 which was discovered by the Magellan Planet Search Program in 2010.[2]

References

  1. 1 2 3 4 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. 1 2 3 Arriagada, Pamela; et al. (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program". The Astrophysical Journal. 711 (2): 1229–35. arXiv:1001.4093. Bibcode:2010ApJ...711.1229A. doi:10.1088/0004-637X/711/2/1229.

Coordinates: 14h 46m 03.06s, −68° 45′ 45.9″

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