Exoplanet in the constellation of Sculptor
HD 4208 b / Xolotlan Discovery Discovered by California and Carnegie Discovery site Keck telescope Discovery date 15 October 2001 Detection method Doppler Spectroscopy Orbital characteristics Apastron 1.736 AU (259,700,000 km) Periastron 1.564 AU (234,000,000 km) Semi-major axis 1.650 ± 0.096 AU (246,800,000 ± 14,400,000 km) Eccentricity 0.052 ± 0.040 Orbital period (sidereal) 828.0 ± 8.1 d y Time of periastron 2,451,040 Argument of periastron 345 Semi-amplitude 19.06 ± 0.73 Star HD 4208 Physical characteristics Mass >0.804 ± 0.073 M J
HD 4208 b, officially named Xolotlan , is an extrasolar planet discovered by the California and Carnegie Planet Search team using the Keck telescope . The planet is probably somewhat less massive than Jupiter , although only its minimum mass is known. Its orbital distance is 1.67 AU , slightly further than Mars, and its eccentricity is low.
The planet HD 4208 b is named Xolotlan . The name was selected in the NameExoWorlds campaign by Nicaragua , during the 100th anniversary of the IAU . Xolotlan is the name of Lake Managua in Nahuatl language.
References
Vogt, Steven S.; et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal . 568 (1): 352–362. arXiv :astro-ph/0110378 . Bibcode :2002ApJ...568..352V . doi :10.1086/338768 . S2CID 2272917 .
Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal . 646 (1): 505–522. arXiv :astro-ph/0607493 . Bibcode :2006ApJ...646..505B . doi :10.1086/504701 . S2CID 119067572 .
"Approved names" . NameExoworlds . Retrieved 2020-01-02."International Astronomical Union | IAU" . www.iau.org . Retrieved 2020-01-02.
External links
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