HAT-P-9

HAT-P-9 / Tevel
	; The Size Comparison of HAT-P-9 System (Tevel).
Observation data; Epoch J2000 Equinox J2000
Constellation	Auriga
Right ascension	07h 20m 40.4565s
Declination	+37° 08′ 26.343″
Apparent magnitude (V)	12.34 ± 0.27
Characteristics
Evolutionary stage	main sequence
Spectral type	F
Apparent magnitude (B)	12.35 ± 0.23
Apparent magnitude (V)	12.34 ± 0.27
Apparent magnitude (J)	11.274 ± 0.022
Apparent magnitude (H)	11.04 ± 0.03
Apparent magnitude (K)	11.015 ± 0.021
Variable type	planetary transit
Astrometry
Radial velocity (Rv)	20.69±2.27 km/s
Proper motion (μ)	RA: −9.796 mas/yr ; Dec.: −13.029 mas/yr
Parallax (π)	2.1626±0.0140 mas
Distance	1,508 ± 10 ly ; (462 ± 3 pc)
Details
Mass	1.281+0.057; −0.056 M☉
Radius	1.338+0.065; −0.060 R☉
Luminosity	2.62+0.26; −0.23 L☉
Surface gravity (log g)	4.293+0.033; −0.035 cgs
Temperature	6253 ± 84 K
Metallicity [Fe/H]	0.16 ± 0.09 dex
Rotational velocity (v sin i)	13.4 ± 1.4 km/s
Age	1.6+1.8; −1.4 Gyr
Other designations
	Tevel, TOI-1731, TIC 371234684, TYC 2463-281-1, GSC 02463-00281, 2MASS J07204044+3708263, HAT-P-9
Database references
SIMBAD	data
Exoplanet Archive	data

HAT-P-9 is a magnitude 12 F-type star approximately 1500 light-years away in the constellation Auriga.^[3] A search for a binary companion star using adaptive optics at the MMT Observatory was negative.^[8]

Right ascension07^h 20^m 40.4565^s^[2]

Declination+37° 08′ 26.343″^[2]

Apparentmagnitude(V)12.34 ± 0.27^[3]

Quick facts Observation data Epoch J2000 Equinox J2000, Constellation ...

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Observation data Epoch J2000 Equinox J2000
The Size Comparison of HAT-P-9 System (Tevel).
Constellation	Auriga^[1]
Right ascension	07^h 20^m 40.4565^s^[2]
Declination	+37° 08′ 26.343″^[2]
Apparent magnitude (V)	12.34 ± 0.27^[3]
Characteristics
Evolutionary stage	main sequence^[2]
Spectral type	F^[4]
Apparent magnitude (B)	12.35 ± 0.23^[3]
Apparent magnitude (V)	12.34 ± 0.27^[3]
Apparent magnitude (J)	11.274 ± 0.022^[3]
Apparent magnitude (H)	11.04 ± 0.03^[3]
Apparent magnitude (K)	11.015 ± 0.021^[3]
Variable type	planetary transit^[4]
Astrometry

Radial velocity (R_v)	20.69±2.27^[2] km/s
Proper motion (μ)	RA: −9.796 mas/yr^[2] Dec.: −13.029 mas/yr^[2]
Parallax (π)	2.1626±0.0140 mas^[2]
Distance	1,508 ± 10 ly (462 ± 3 pc)

Details

Mass	1.281+0.057 −0.056^[5] M_☉
Radius	1.338+0.065 −0.060^[5] R_☉
Luminosity	2.62+0.26 −0.23^[5] `L`_☉
Surface gravity (log g)	4.293+0.033 −0.035^[5] cgs
Temperature	6253 ± 84^[6] K
Metallicity [Fe/H]	0.16 ± 0.09^[6] dex
Rotational velocity (v sin i)	13.4 ± 1.4^[6] km/s
Age	1.6^+1.8 _−1.4^[7] Gyr

Other designations
Tevel, TOI-1731, TIC 371234684, TYC 2463-281-1, GSC 02463-00281, 2MASS J07204044+3708263, HAT-P-9^[3]
Database references
SIMBAD	data
Exoplanet Archive	data

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