Astronomy:HD 4208 b

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Short description: Exoplanet in the constellation of Sculptor
HD 4208 b / Xolotlan
Discovery
Discovered byCalifornia and Carnegie
Planet Search
Discovery siteKeck telescope
Discovery date15 October 2001
Doppler Spectroscopy
Orbital characteristics
astron|astron|helion}}1.736 AU (259,700,000 km)
astron|astron|helion}}1.564 AU (234,000,000 km)
1.650 ± 0.096 AU (246,800,000 ± 14,400,000 km)
Eccentricity0.052 ± 0.040
Orbital period828.0 ± 8.1 d
2.267 y
astron|astron|helion}}2,451,040
± 120
345
Semi-amplitude19.06 ± 0.73
StarHD 4208
Physical characteristics
Mass>0.804 ± 0.073 |♃|J}}}}}}


The extrasolar planet, designated as HD 4208 b, was 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.[1][2]

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.[3][4]

References

  1. ↑ Vogt, Steven S. et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal 568 (1): 352–362. doi:10.1086/338768. Bibcode: 2002ApJ...568..352V. 
  2. ↑ Butler, R. P. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. Bibcode: 2006ApJ...646..505B. 
  3. ↑ "Approved names" (in en). http://www.nameexoworlds.iau.org/final-results. 
  4. ↑ "International Astronomical Union | IAU". https://www.iau.org/news/pressreleases/detail/iau1912/. 

External links

Coordinates: Sky map 00h 44m 26.65s, −26° 30′ 56.45″




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