HD 129445 b

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HD 129445 b
Extrasolar planet List of extrasolar planets
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
Distance 210 ± 20[1] ly
(66 ± 5[1] pc)
Spectral type G8V
Mass (m) 0.99 M
Metallicity [Fe/H] 0.25
Orbital elements
Semimajor 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
SIMBAD data

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

References[edit]


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