Gas giant exoplanet in the constellation of Monoceros
HD 45652 b / Viriato
Discovery
Discovered by
Santos et al.
Discovery site
Haute-Provence Observatory, France
Discovery date
May 2008
Detection method
radial velocity from ELODIE
Orbital characteristics
Semi-major axis
0.237±0.011 AU
Eccentricity
0.607±0.026[1]
Orbital period (sidereal)
44.073±0.0048[1] d
Time of periastron
2463720.92±0.45[1]
Argument of periastron
227.7±5.6[1]
Semi-amplitude
33.2±1.8[1]
Star
HD 45652
HD 45652 b, also named Viriato, is a gas giant extrasolar planet orbiting at only 0.23 AU from the star HD 45652, with an orbital period of 44 days. It has mass at least half that of Jupiter. As it was detected using the radial velocity method, its true mass is dependent on the inclination of its orbit; if it is low, then the true mass will be larger. Also, its radius is not known. This planet was discovered by measurements taken by the ELODIE spectrograph from 2005 and 2006, and later confirmed by CORALIE and SOPHIE between 2006 and 2007. The discovery was announced in May 2008.[2]
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^Cite error: The named reference Santos2008 was invoked but never defined (see the help page).
HD45652b, also named Viriato, is a gas giant extrasolar planet orbiting at only 0.23 AU from the star HD45652, with an orbital period of 44 days. It...
HD45652 is a star with an exoplanetary companion in the equatorial constellation of Monoceros. It was officially named Lusitânia on 17 December 2019,...
volunteers who fought with the Nationalists in the Spanish Civil War 1936–1939 HD45652b, named Viriato, an exoplanet This disambiguation page lists articles associated...
Lisbon, Zamora and many other towns in Spain and Portugal. The planet HD45652b was named Viriato in 2019 after Viriathus. In the Portuguese film No,...
most massive exoplanet candidate is HD 217786 b, which masses 12.98 MJ; the least massive confirmed planet is HD 10180 b, which masses 0.004 MJ or 3.1 M🜨...
ed.). Cambridge, MA: Sky Publishing. ISBN 978-1-931559-44-7. Rumrill, H. B. (June 1936). "Star Name Pronunciation". Publications of the Astronomical...
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