HAT-P-5

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[4] mas
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
Database references
SIMBADdata
Extrasolar Planets
Encyclopaedia		data

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 our Sun, and only 200 kelvins hotter. It is estimated to be 2.6 billion years old.[1][2]

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°.[6]

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 — —

See also

References

  1. 1 2 "Notes for Planet HAT-P-5 b". Extrasolar Planets Encyclopaedia. Archived from the original on June 20, 2012. Retrieved October 16, 2007.
  2. 1 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. 1 2 3 4 5 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. Gaia Data Release 1 catalog entry
  5. 1 2 3 4 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.
  6. ↑ 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.

Coordinates: 18h 17m 37.299s, +36° 37′ 16.88″


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