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HAT-P-5 is a 12th magnitude star in the constellation Lyra, approximately 1,000 light years away from Earth. It is a spectral type G star, about 1.16 solar masses and radii greater than the Sun, and only 200 kelvins hotter. It is estimated to be 2.6 billion years old.[1][2]

HAT-P-5[1][2]
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lyra[3]
Right ascension 18h 17m 37.3129s[4]
Declination +36° 37′ 17.164″[4]
Apparent magnitude (V) +11.95
Characteristics
Spectral type G1V
Variable type planetary transit
Astrometry
Proper motion (μ) RA: 11.738±0.690[4] mas/yr
Dec.: 6.342±0.788[4] mas/yr
Parallax (π)3.22 ± 0.24 mas[4]
Distance1,010 ± 80 ly
(310 ± 20 pc)
Details
Mass1.16 ± 0.062 M☉
Radius1.167 ± 0.049 R☉
Surface gravity (log g)4.37 ± 0.03[5] cgs
Temperature5863 ± 80[5] K
Metallicity [Fe/H]0.10 ± 0.10[5] dex
Rotational velocity (v sin i)2.8 ± 1.0[5] km/s
Age2.6 ± 1.8 Gyr
Other designations
GSC 02634-01087, 2MASS J18173731+3637170, TYC 2634-1087-1, V581 Dra
Database references
SIMBADdata
Extrasolar Planets
Encyclopaedia		data

The star HAT-P-5 is named Chasoň. The name was selected in the NameExoWorlds campaign by Slovakia, during the 100th anniversary of the IAU. Chasoň is an ancient Slovak term for Sun.[6][7]


Planetary system


On October 9, 2007, a report was submitted to The Astrophysical Journal Letters telling of the discovery of an exoplanet transiting HAT-P-5. The planet was described as a Jupiter-like hot Jupiter, with a radius about one and one quarter times that of Jupiter, and nearly the same mass. Its density was reported as 0.66 ± 0.11 g/cm3, and its inclination 86.75 ± 0.44°.[8]

The HAT-P-5 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 1.06 ± 0.11 MJ 0.04075 ± 0.00076 2.788491 ± 2.5e-05 0 86.75±0.44[8]° 1.204±0.017[9] RJ

See also



References


  1. "Notes for Planet HAT-P-5 b". Extrasolar Planets Encyclopaedia. Archived from the original on May 5, 2012. Retrieved October 16, 2007.
  2. "Simbad Query Result". Simbad. Retrieved October 16, 2007.
  3. Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034.Vizier query form
  4. Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512. S2CID 1828208.Gaia Data Release 1 catalog entry
  5. Torres, Guillermo; et al. (2012). "Improved Spectroscopic Parameters for Transiting Planet Hosts". The Astrophysical Journal. 757 (2). 161. arXiv:1208.1268. Bibcode:2012ApJ...757..161T. doi:10.1088/0004-637X/757/2/161. S2CID 16580774.
  6. "Approved names". NameExoworlds. Retrieved 2020-01-02.
  7. "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
  8. Bakos, G. Á.; et al. (2007). "HAT-P-5b: A Jupiter-like Hot Jupiter Transiting a Bright Star". The Astrophysical Journal Letters. 671 (2): L173–L176. arXiv:0710.1841. Bibcode:2007ApJ...671L.173B. doi:10.1086/525022. S2CID 15514048.
  9. Wang, Xian-Yu; et al. (1 July 2021). "Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves". The Astrophysical Journal Supplement Series. 255 (1). 15. arXiv:2105.14851. Bibcode:2021ApJS..255...15W. doi:10.3847/1538-4365/ac0835.



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На других языках

[de] HAT-P-5

HAT-P-5 ist ein Stern der Spektralklasse G, der ungefähr 1000 Lichtjahre von der Erde entfernt ist. Er wird von einem Exoplaneten mit der Bezeichnung HAT-P-5 b umrundet.
- [en] HAT-P-5

[ru] HAT-P-5

HAT-P-5 — звезда 12-й звёздной величины в созвездии Лиры на расстоянии около 1108 световых лет от Земли. Вокруг звезды обращается, как минимум, одна экзопланета.


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