HD 164604 b

HD 164604 b
Exoplanet List of exoplanets
Parent star
Star HD 164604
Constellation Sagittarius
Right ascension (α) 18h 03m 06.95s
Declination (δ) –28° 33′ 38.3″
Apparent magnitude (mV) 9.7
Distance123.9 ± 8.8 ly
(38.0 ± 2.7 pc)
Spectral type K2V
Mass (m) 0.80 M☉
Metallicity [Fe/H] -0.18
Orbital elements
Semi-major axis(a) 1.13 ± 0.05 AU
(169 Gm)
Periastron (q) 0.85 AU
(128 Gm)
Apastron (Q) 1.40 AU
(210 Gm)
Eccentricity (e) 0.24 ± 0.14
Orbital period(P) 606.4 ± 9.0 d
(1.66 y)
Orbital speed (υ) 20.3 km/s
Argument of
periastron		 (ω) 51 ± 23°
Time of periastron (T0) 24552674 ± 80 JD
Semi-amplitude (K) 77 ± 32 m/s
Physical characteristics
Minimum mass(m sin i)2.7 ± 1.3 MJ
Discovery information
Discovery date January 26, 2010
Discoverer(s) Arriagada et al.
Discovery method Doppler spectroscopy
Discovery site Las Campanas Observatory
Discovery status Published
Other designations
CD–28°14058 b, HIP 88414 b
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 164604 b is an extrasolar planet discovered in January 2010 in association with the Magellan Planet Search Program. It has 2.7 times the mass of Jupiter and an orbital period of 606.4 days. Its star is classified as a K2 V dwarf and is roughly 124 light-years away from Earth.[1]

See also

References

  1. ↑ "HD 164604". exoplanet.eu/catalog. Retrieved 28 June 2013.

Further reading

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

Coordinates: 18h 03m 06.95s, −28° 33′ 38.3″

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