astro.wikisort.org - Meteorite

HD 102272 c is an extrasolar planet approximately 1,200 light-years away in the constellation of Leo. The planet is orbiting the K-type giant star HD 102272. The planet was discovered by the radial velocity method, using the Hobby-Eberly Telescope. Another planet, HD 102272 b, was also discovered orbiting the same star. Although there is evidence for the existence of this planet, data is insufficient to unambiguously determine its orbit. The discovery was announced in June 2008. It's thought to have at least 2.6 times the mass of Jupiter.[1]

HD 102272 c

Discovery
Discovered by	Niedzielski et al.
Discovery site	McDonald Observatory, United States
Discovery date	18 June 2008
Detection method	Radial velocity
Orbital characteristics
Semi-major axis	1.57 ± 0.05 AU (234,900,000 ± 7,500,000 km)[1]
Eccentricity	0.68 ± 0.06[1]
Orbital period (sidereal)	520 ± 26[1] d
Time of periastron	2454135 ± 260[1]
Argument of periastron	320 ± 10[1]
Semi-amplitude	59 ± 11[1]
Star	HD 102272
Physical characteristics
Mass	>2.6 ± 0.4[1] MJ

See also

• HD 102272 b

References

External links

• "Notes for planet HD 102272 c". The Extrasolar Planets Encyclopaedia. Retrieved 2008-07-01.
• "HD 102272 c". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-09.

На других языках

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- [en] HD 102272 c

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[ru] HD 102272 c

HD 102272 c — газовый гигант, расположенный в системе звезды спектрального класса K0 HD 102272. Открыт методом доплеровской спектроскопии с помощью телескопа Хобби-Эберли в 2008 году.

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