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HAT-P-9

Coordinates:Sky map07h 20m 40.479s, +37° 08′ 26.17″
From Wikipedia, the free encyclopedia
F-type star in the constellation Auriga
HAT-P-9 / Tevel
Observation data
Epoch J2000      Equinox J2000
ConstellationAuriga
Right ascension07h 20m 40.4565s[1]
Declination+37° 08′ 26.343″[1]
Apparent magnitude (V)12.34 ± 0.27[2]
Characteristics
Spectral typeF[3]
Apparent magnitude (B)12.35 ± 0.23[2]
Apparent magnitude (V)12.34 ± 0.27[2]
Apparent magnitude (J)11.274 ± 0.022[2]
Apparent magnitude (H)11.04 ± 0.03[2]
Apparent magnitude (K)11.015 ± 0.021[2]
Variable typeplanetary transit[3]
Astrometry
Proper motion (μ)RA: −9.796(16)mas/yr[1]
Dec.: −13.029(14)mas/yr[1]
Parallax (π)2.1626±0.0140 mas[1]
Distance1,508 ± 10 ly
(462 ± 3 pc)
Details
Mass1.28 ± 0.13[3] M☉
Radius1.32 ± 0.07[3] R☉
Surface gravity (log g)4.29 ± 0.03[4] cgs
Temperature6253 ± 84[4] K
Metallicity [Fe/H]0.16 ± 0.09[4] dex
Rotational velocity (v sin i)13.4 ± 1.4[4] km/s
Age1.6+1.8
−1.4 Gyr
Equatorial [g]201,21m/s2
Other designations
Tevel,Gaia DR3 898130030131443584,TYC 2463-281-1,GSC 02463-00281,2MASS J07204044+3708263[2]
Database references
SIMBADdata
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HAT-P-9 is amagnitude 12F star approximately 1500light years away in theconstellationAuriga.[2] A search for a binary companion star usingadaptive optics at theMMT Observatory was negative.[5]

The star HAT-P-9 is namedTevel. The name was selected in theNameExoWorlds campaign byIsrael, during the 100th anniversary of theIAU. The Hebrew word תֵבֵלtevel means "World" or "Universe".[6][7]

Planetary system

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Anexoplanet orbiting the star,HAT-P-9b, was discovered by thetransit method on June 26, 2008.[3]

The HAT-P-9 planetary system
Companion
(in order from star)		MassSemimajor axis
(AU)		Orbital period
(days)		EccentricityInclinationRadius
b / Alef0.78 ± 0.09 MJ0.053 ± 0.0023.92289 ± 4e-050——

See also

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References

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  1. ^abcdVallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties".Astronomy and Astrophysics.674: A1.arXiv:2208.00211.Bibcode:2023A&A...674A...1G.doi:10.1051/0004-6361/202243940.S2CID 244398875. Gaia DR3 record for this source atVizieR.
  2. ^abcdefgh"SIMBAD query result: TYC 2463-281-1 -- Star".Centre de Données astronomiques de Strasbourg. Retrieved2009-05-18.
  3. ^abcdeShporer, Avi; et al. (2009). "HAT-P-9b: A Low-Density Planet Transiting a Moderately Faint F Star".The Astrophysical Journal.690 (2):1393–1400.arXiv:0806.4008.Bibcode:2009ApJ...690.1393S.doi:10.1088/0004-637X/690/2/1393.S2CID 930937.
  4. ^abcdTorres, 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.
  5. ^Adams, E. R.; et al. (2013). "Adaptive Optics Images. II. 12 Kepler Objects of Interest and 15 Confirmed Transiting Planets".The Astronomical Journal.146 (1). 9.arXiv:1305.6548.Bibcode:2013AJ....146....9A.doi:10.1088/0004-6256/146/1/9.S2CID 119117620.
  6. ^"Approved names".NameExoworlds. Retrieved2020-01-02.
  7. ^"International Astronomical Union | IAU".www.iau.org. Retrieved2020-01-02.

External links

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