HD 45652 b

HD 45652 b
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
Orbital period (sidereal)	44.073±0.0048 d
Time of periastron	2463720.92±0.45
Argument of periastron	227.7±5.6
Semi-amplitude	33.2±1.8
Star	HD 45652

HD 45652 b 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]

HD 45652 b, was officially named Viriato on the 17th of December 2019 after the IAU100 press conference in Paris by the IAU (International Astronomical Union).^[3]

References[]

^ ^a ^b ^c ^d ^e Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5.
^ Santos, N. C.; et al. (2008). "ELODIE metallicity-biased search for transiting Hot Jupiters. V. An intermediate-period Jovian planet orbiting HD 45652". Astronomy and Astrophysics. 487 (1): 369–372. arXiv:0805.1019. Bibcode:2008A&A...487..369S. doi:10.1051/0004-6361:200809402.
^ "112 sets of exoplanets and host stars named in the IAU100". International Astronomical Union. Retrieved 2019-12-18.{{cite web}}: CS1 maint: url-status (link)

External links[]

"Notes for planet HD 45652 b". The Extrasolar Planets Encyclopaedia.

Coordinates: 06^h 29^m 13.1917^s, +10° 56′ 02.009″

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[Ment2018-1] Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5.

[Santos2008-2] Santos, N. C.; et al. (2008). "ELODIE metallicity-biased search for transiting Hot Jupiters. V. An intermediate-period Jovian planet orbiting HD 45652". Astronomy and Astrophysics. 487 (1): 369–372. arXiv:0805.1019. Bibcode:2008A&A...487..369S. doi:10.1051/0004-6361:200809402.

[:0-3] "112 sets of exoplanets and host stars named in the IAU100". International Astronomical Union. Retrieved 2019-12-18.{{cite web}}: CS1 maint: url-status (link)

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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