Английская Википедия:HAT-P-15

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

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

HAT-P-15 is a G-type main-sequence star about 630 light-years away. The star is older than Sun yet has a concentration of heavy elements roughly 190% of solar abundance.[1] The star has no noticeable starspot activity.[2]

The spectroscopic survey in 2015 have failed to find any stellar companions to it,[3] yet imaging survey have identified a possibly two companion red dwarf stars at projected separations 1210 and 1370 AU, respectively.[4]

The star was named Berehynia in December 2019 by Ukrainian amateur astronomers.[5]

Planetary system

In 2010 a transiting hot superjovian planet b (named Tryzub in 2019[5]) was detected. It has an equilibrium temperature of 904Шаблон:± K.[6] An orbital simulation shows that any planets inward of the orbit of b would spiral inward and be destroyed within a time-span of less than a billion years.[7] The planetary orbit is well aligned with the equatorial plane of the star, misalignment equal to 13Шаблон:± degrees.[8]

Файл:Exoplanet Comparison HAT-P-15 b.png
Size comparison of HAT-P-15 b and Jupiter

Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet Шаблон:Orbitbox end

References

Шаблон:Reflist

Шаблон:Sky

Шаблон:Perseus (constellation)

Шаблон:Main-star-stub Шаблон:Extrasolar-planet-stub

  1. Ошибка цитирования Неверный тег <ref>; для сносок Teske2019 не указан текст
  2. Шаблон:Citation
  3. Шаблон:Citation
  4. Шаблон:Citation
  5. 5,0 5,1 Шаблон:Cite web
  6. Ошибка цитирования Неверный тег <ref>; для сносок Kovacs2010 не указан текст
  7. Шаблон:Citation
  8. Шаблон:Citation