astro.wikisort.org - Star

Search / Calendar

HAT-P-36, also referred to as Tuiren[2] is a 12th magnitude G-type main-sequence star estimated to be approximately 1,034 light-years away from Earth in the constellation Canes Venatici. HAT-P-36 is too faint to be seen with the naked eye, but it is possible to view it with binoculars or a small telescope. In 2012 a hot Jupiter-type exoplanet was discovered orbiting HAT-P-36 with an orbital period of about 1.3 Earth days.[3] In December 2019, HAT-P-36 was named Tuiren and its planetary companion, HAT-P-36b, was named Bran as a result of Ireland's contribution to the 2019 NameExoWorlds campaign.[4] Bran has a mass approximately 1.8 times that of Jupiter and a radius 1.2 times larger.

HAT-P-36
Location of HAT-P-36 (circled) within Canes Venatici
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Canes Venatici
Right ascension 12h 33m 03s[1]
Declination +44° 54′ 55″
Apparent magnitude (V) 12.26
Characteristics
Spectral type G
Astrometry
Radial velocity (Rv)-16.434 km/s
Proper motion (μ) RA: -11.641 mas/yr
Dec.: 8.065 mas/yr
Parallax (π)3.3678 ± 0.0258 mas
Distance968 ± 7 ly
(297 ± 2 pc)
Details
Mass1.022 ± 0.049 M☉
Radius1.096 ± 0.056 R☉
Temperature5580 ± 100.0 K
Metallicity [Fe/H]0.26 ± 0.08 dex
Age6.6 ± 1.8 Gyr
Other designations
2MASS J12330390+4454552, Gaia DR1 1541532207133249920
Database references
SIMBADdata

Etymology


Tuiren (centre) as viewed in the Sloan Digital Sky Survey. The bright star to the top-left is TYC 3020-2195-1, an A-type main-sequence star approximately 3,156 light-years away.[5]
Tuiren (centre) as viewed in the Sloan Digital Sky Survey. The bright star to the top-left is TYC 3020-2195-1, an A-type main-sequence star approximately 3,156 light-years away.[5]

HAT-P-36 and its planet are named after characters from The Birth of Bran, a story in the book Irish Fairy Tales by James Stephens. The book is a re-telling of various stories from Irish folklore. Tuiren was the aunt of the mythical hero Fionn mac Cumhaill and was turned into a hound by the fairy Uchtdealbh after Tuiren married her husband. Bran and Sceólan were the two puppies mothered by Tuiren while she was a dog. They were cousins of Fionn mac Cumhaill. The names were proposed by John Murphy, a teacher at Regina Mundi College, Cork.[6]


Planets


The Tuiren[1] planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b (Bran) ≥1.832±0.099 MJ 0.0238±0.0004 1.327347±0.000003 0.063±0.032 86±1.3° 1.264±0.071 RJ

HAT-P-36b (Bran) was discovered in 2012 by the HATNet Project using the transit method.[3] A search for transit timing variation did not result in detection of additional planets in the system as at 2021.[7] Surprisingly, a planetary orbital period increase by 0.014 seconds per year was detected by 2021.[8]

Size comparison
Jupiter HAT-P-36b (Bran)

References


  1. "Planet HAT-P-36 b". Extrasolar Planets Encyclopaedia. Retrieved 24 July 2020.
  2. "IAU100 NameExoWorlds Approved Names" (PDF). NameExoWorlds. International Astronomical Union. Retrieved 24 July 2020.
  3. "HAT-P-36". Open Exoplanet Catalogue. Retrieved 24 July 2020.
  4. Smith, Niall (29 September 2019). "Sky Matters: Ireland has the chance to name a star and a planet - any ideas?". Irish Examiner. Retrieved 24 July 2020.
  5. "TYC 3020-2195-1". Centre de Données astronomiques de Strasbourg. SIMBAD. Retrieved 24 July 2020.
  6. Gorey, Colm (18 December 2019). "Cork teacher names exoplanet and star after Irish mythical dogs". Silicon Republic. Retrieved 24 July 2020.
  7. Probing Transit Timing Variations of Three Hot-Jupiters: HATP-36b, HATP-56b, and WASP-52b, 2021, arXiv:2111.05220
  8. Analysis of The Most Precise Light Curves of HAT-P-36 Detrended From Spot Signals, 2021, arXiv:2111.11531

На других языках

- [en] HAT-P-36

[ru] HAT-P-36

HAT-P-36 — звезда, которая находится в созвездии Гончих Псов на расстоянии около 1033 световых лет от нас. Вокруг звезды обращается, как минимум, одна планета.


Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.

Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.

2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии