HATS-3

HATS-3
Observation data; Epoch J2000 Equinox J2000
Constellation	Cetus
Right ascension	20h 49m 49.7853s
Declination	−24° 25′ 43.5398″
Apparent magnitude (V)	12.43
Characteristics
Evolutionary stage	main-sequence star
Spectral type	F
Astrometry
Proper motion (μ)	RA: 10.393 mas/yr ; Dec.: 15.478 mas/yr
Parallax (π)	2.3594 ± 0.0171 mas
Distance	1,380 ± 10 ly ; (424 ± 3 pc)
Details
Mass	1.209±0.036 M☉
Radius	1.404±0.030 R☉
Surface gravity (log g)	4.22±0.01 cgs
Temperature	6351±76 K
Metallicity [Fe/H]	-0.16 dex
Rotational velocity (v sin i)	9.12±1.31 km/s
Age	3.2+0.6; −0.4 Gyr
Other designations
	Gaia DR2 6805886373600546176, TYC 6926-454-1, GSC 06926-00454, 2MASS J20494978-2425436
Database references
SIMBAD	data

HATS-3 is a F-type main-sequence star. Its surface temperature is 6351±76 K. HATS-3 is relatively depleted in its concentration of heavy elements, with a metallicity Fe/H index of −0.157±0.07, but is slightly younger than the Sun at an age of 3.2^+0.6
_−0.4 billion years.^[2]

A multiplicity survey in 2016 detected a candidate stellar companion to HATS-3, 3.671±0.016 arc-seconds away.^[6]

Planetary system[]

In 2013, one planet, named HATS-3b, was discovered on a tight, nearly circular orbit.^[2] The planetary orbit of HATS-3b is likely aligned with the equatorial plane of the star, at a misalignment angle of 3±25°.^[5] Planetary equilibrium temperature is 1643 K.^[2]

The HATS-3 planetary system^[5]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.55±0.23^[4] M_J	0.0485^+0.0004 _−0.0006	3.547851±0.000005	0	86.2±0.3°	0.99±0.19^[4] R_J

References[]

^ ^a ^b ^c "HATS-3". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-09.
^ ^a ^b ^c ^d ^e Bayliss, D.; Zhou, G.; Penev, K.; Bakos, G. Á.; Hartman, J. D.; Jordán, A.; Mancini, L.; Mohler-Fischer, M.; Suc, V.; Rabus, M.; Béky, B.; Csubry, Z.; Buchhave, L.; Henning, T.; Nikolov, N.; Csák, B.; Brahm, R.; Espinoza, N.; Noyes, R. W.; Schmidt, B.; Conroy, P.; Wright, D. J.; Tinney, C. G.; Addison, B. C.; Sackett, P. D.; Sasselov, D. D.; Lázár, J.; Papp, I.; Sári, P. (2013), "HATS-3b: AN INFLATED HOT JUPITER TRANSITING AN F-TYPE STAR", The Astronomical Journal, 146 (5): 113, arXiv:1306.0624, Bibcode:2013AJ....146..113B, doi:10.1088/0004-6256/146/5/113, S2CID 119194040
^ ^a ^b ^c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. Gaia EDR3 record for this source at VizieR.
^ ^a ^b ^c Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (2017), "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes", The Astronomical Journal, 153 (3): 136, arXiv:1609.04389, Bibcode:2017AJ....153..136S, doi:10.3847/1538-3881/aa5df3, S2CID 119219062
^ ^a ^b ^c ^d Addison, B. C.; Tinney, C. G.; Wright, D. J.; Bayliss, D. (2014), "A SPIN-ORBIT ALIGNMENT FOR THE HOT JUPITER HATS-3b", The Astrophysical Journal, 792 (2): 112, arXiv:1407.7710, Bibcode:2014ApJ...792..112A, doi:10.1088/0004-637X/792/2/112, S2CID 118352072
^ Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Haugbølle, T.; Hinse, T. C.; Juncher, D.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; et al. (2016), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP)", Astronomy & Astrophysics, 589: A58, arXiv:1603.03274, doi:10.1051/0004-6361/201527970, S2CID 14215845

Coordinates: 20^h 49^m 49.7853^s, −24° 25′ 43.5398″

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[SIMBAD-1] "HATS-3". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-09.

[Bayliss2013-2] Bayliss, D.; Zhou, G.; Penev, K.; Bakos, G. Á.; Hartman, J. D.; Jordán, A.; Mancini, L.; Mohler-Fischer, M.; Suc, V.; Rabus, M.; Béky, B.; Csubry, Z.; Buchhave, L.; Henning, T.; Nikolov, N.; Csák, B.; Brahm, R.; Espinoza, N.; Noyes, R. W.; Schmidt, B.; Conroy, P.; Wright, D. J.; Tinney, C. G.; Addison, B. C.; Sackett, P. D.; Sasselov, D. D.; Lázár, J.; Papp, I.; Sári, P. (2013), "HATS-3b: AN INFLATED HOT JUPITER TRANSITING AN F-TYPE STAR", The Astronomical Journal, 146 (5): 113, arXiv:1306.0624, Bibcode:2013AJ....146..113B, doi:10.1088/0004-6256/146/5/113, S2CID 119194040

[EDR3-3] Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. Gaia EDR3 record for this source at VizieR.

[Bonomo2016-4] Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (2017), "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes", The Astronomical Journal, 153 (3): 136, arXiv:1609.04389, Bibcode:2017AJ....153..136S, doi:10.3847/1538-3881/aa5df3, S2CID 119219062

[Addison2014-5] Addison, B. C.; Tinney, C. G.; Wright, D. J.; Bayliss, D. (2014), "A SPIN-ORBIT ALIGNMENT FOR THE HOT JUPITER HATS-3b", The Astrophysical Journal, 792 (2): 112, arXiv:1407.7710, Bibcode:2014ApJ...792..112A, doi:10.1088/0004-637X/792/2/112, S2CID 118352072

[6] Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Haugbølle, T.; Hinse, T. C.; Juncher, D.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; et al. (2016), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP)", Astronomy & Astrophysics, 589: A58, arXiv:1603.03274, doi:10.1051/0004-6361/201527970, S2CID 14215845

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[2]

[3]

[4]

[5]

[6]

Observation data Epoch J2000 Equinox J2000
Constellation	Cetus
Right ascension	20^h 49^m 49.7853^s^[1]
Declination	−24° 25′ 43.5398″^[1]
Apparent magnitude (V)	12.43
Characteristics
Evolutionary stage	main-sequence star
Spectral type	F^[2]
Astrometry

Proper motion (μ)	RA: 10.393^[3] mas/yr Dec.: 15.478^[3] mas/yr
Parallax (π)	2.3594 ± 0.0171^[3] mas
Distance	1,380 ± 10 ly (424 ± 3 pc)

Details^[4]

Mass	1.209±0.036^[5] `M`_☉
Radius	1.404±0.030^[5] `R`_☉
Surface gravity (log g)	4.22±0.01 cgs
Temperature	6351±76 K
Metallicity [Fe/H]	-0.16 dex
Rotational velocity (v sin i)	9.12±1.31 km/s
Age	3.2^+0.6 _−0.4^[2] Gyr

Other designations
Gaia DR2 6805886373600546176, TYC 6926-454-1, GSC 06926-00454, 2MASS J20494978-2425436^[1]
Database references
SIMBAD	data