HD 164604 b is an extrasolar planet discovered in January 2010 in association with the Magellan Planet Search Program.[2] It has a minimum mass 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.[3]

HD 164604 b / Caleuche
Discovery
Discovered byArriagada et al.
Discovery siteLas Campanas Observatory
Discovery dateJanuary 26, 2010
Doppler spectroscopy
Orbital characteristics
Apastron1.40 AU (209,000,000 km)
Periastron0.85 AU (127,000,000 km)
1.13 ± 0.05 AU (169,000,000 ± 7,500,000 km)
Eccentricity0.24 ± 0.14
606.4 ± 9.0 d
1.66 y
20.3
Inclination29°±19°[1]
24552674 ± 80
51 ± 23
Semi-amplitude77 ± 32
StarHD 164604
Physical characteristics
Mass14.3±5.5 MJ[1]

HD 164604 b is named Caleuche. The name was selected in the NameExoWorlds campaign by Chile, during the 100th anniversary of the IAU. Caleuche is a large ghost ship from southern Chilean mythology which sails the seas around the island of Chiloé at night.[4][5]

An astrometric measurement of the planet's inclination and true mass was published in 2022 as part of Gaia DR3.[1]

See also

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References

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  1. ^ a b c Gaia Collaboration; et al. (2022). "Gaia Data Release 3: Stellar multiplicity, a teaser for the hidden treasure". arXiv:2206.05595 [astro-ph.SR].
  2. ^ 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. S2CID 118682009.
  3. ^ "HD 164604". Extrasolar Planets Encyclopaedia. Retrieved 28 June 2013.
  4. ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
  5. ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.