Английская Википедия:HD 86264

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Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end

HD 86264 is a single[1] star with an exoplanetary companion in the equatorial constellation of Hydra. It is too faint to be readily visible to the naked eye with an apparent visual magnitude of 7.41.[2] The distance to this star, as determined by parallax measurements, is 219 light-years, and it is drifting further away with a radial velocity of +7.4 km/s.[3] A 2015 survey ruled out the existence of any stellar companions at projected distances above 30 astronomical units.[1]

This is an F-type main-sequence star with a stellar classification of F7V.[4] It is about two billion years old with a modest level of chromospheric activity and is spinning with a projected rotational velocity of 13 km/s.[5] The star is larger and more massive compared to the Sun, and it has a higher metallicity – the abundance of elements with a higher atomic number than helium.[5] It is radiating four times the luminosity of the Sun from its photosphere at an effective temperature of 6,616 K.[6]

Planetary system

In August 2009, it was announced that an exoplanet was found in an eccentric orbit around this host star.[5] The extended habitable zone for this star ranges from Шаблон:Val out to Шаблон:Val. The planet orbits between Шаблон:Val and Шаблон:Val, crossing nearly all of the habitable zone.[7] An estimate of the planet's inclination and true mass via astrometry, though with high error, was published in 2022.[8]

Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet Шаблон:Orbitbox end

See also

References

Шаблон:Reflist

Шаблон:Sky Шаблон:Stars of Hydra

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