HAT-P-3

HAT-P-3 / Dombay

Observation data Epoch J2000       Equinox J2000
Constellation	Ursa Major [1]
Right ascension	13h 44m 22.5937s [2]
Declination	+48° 01′ 43.206″ [2]
Apparent magnitude  (V)	11.577(67) [3]
Characteristics
Spectral type	K5 [4]
Apparent magnitude  (B)	12.53(20) [5]
Apparent magnitude  (V)	11.577(67) [3]
Apparent magnitude  (I)	10.504(79) [3]
Apparent magnitude  (J)	9.936(22) [6]
Apparent magnitude  (H)	9.542(28) [6]
Apparent magnitude  (K)	9.448(25) [6]
Variable type	planetary transit [7]
Astrometry
Radial velocity (Rv)	−23.8±0.1 [7] km/s
Proper motion (μ)	RA: −19.619(12) mas/yr [2] Dec.: −23.973(15) mas/yr [2]
Parallax (π)	7.4159±0.0143  mas [2]
Distance	439.8 ± 0.8  ly (134.8 ± 0.3  pc)
Absolute magnitude  (MV)	5.87(15) [8]
Details
Mass	0.925+0.031 −0.0134 [4]   M☉
Radius	0.850+0.021 −0.010 [4]   R☉
Luminosity	0.435(53) [8]   L☉
Surface gravity (log g)	4.58(10) [4]   cgs
Temperature	5,190(80) [4]   K
Metallicity [Fe/H]	0.24(8) [4]   dex
Rotational velocity (v sin i)	1.4(5) [4]  km/s
Age	2.9+1.7 −3.7 [4]   Myr
Other designations
Dombay, TOI-1419, TIC 311035838, TYC 3466-819-1, GSC 03466-00819, 2MASS J13442258+4801432, HAT-P-3 [5]
Database references
SIMBAD	data
Exoplanet Archive	data

HAT-P-3, is a metal-rich K5 dwarf star located about 441 light-years away in the constellation Ursa Major. At a magnitude of about 11.5 it is not visible to the naked eye but is visible in a small to medium-sized amateur telescope. It is believed to be a relatively young star and has a slightly enhanced level of chromospheric activity. ^{[7] [9]}

The star HAT-P-3 is named Dombay. The name was selected in the NameExoWorlds campaign by Russia, during the 100th anniversary of the IAU. Dombay is a resort region in the North Caucasus mountains. ^{[10] [11]}

Planetary system

This star is home to the extrasolar planet HAT-P-3b, later named Teberda, discovered by the HATNet Project using the transit method. ^[7]

The HAT-P-3 planetary system ^{[8] [12]}

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b / Teberda	0.609+0.021 −0.022  MJ	0.03899+0.00062 −0.00065	2.8997360±0.0000020	<0.0100	87.07 ± 0.55°	0.827 ± 0.055  RJ

See also

• List of transiting extrasolar planets

References

1. Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific . 99 (617): 695. Bibcode:1987PASP...99..695R. doi: 10.1086/132034 . Constellation record for this object at VizieR.
2. Vallenari, 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 at VizieR.
3. Droege, Thomas F.; et al. (2006). "TASS Mark IV Photometric Survey of the Northern Sky". The Publications of the Astronomical Society of the Pacific. 118 (850): 1666–1678. arXiv: astro-ph/0610529 . Bibcode:2006PASP..118.1666D. doi:10.1086/510197. JSTOR   10.1086/510197. S2CID   11716917. Vizier catalog entry
4. Mancini, L.; Esposito, M.; Covino, E.; Southworth, J.; Biazzo, K.; Bruni, I.; Ciceri, S.; Evans, D.; Lanza, A. F.; Poretti, E.; Sarkis, P.; Smith, A. M. S.; Brogi, M.; Affer, L.; Benatti, S.; Bignamini, A.; Boccato, C.; Bonomo, A. S.; Borsa, F.; Carleo, I.; Claudi, R.; Cosentino, R.; Damasso, M.; Desidera, S.; Giacobbe, P.; González-Álvarez, E.; Gratton, R.; Harutyunyan, A.; Leto, G.; et al. (2018). "The GAPS programme with HARPS-N at TNG". Astronomy & Astrophysics. 613: A41. arXiv: 1802.03859 . Bibcode:2018A&A...613A..41M. doi:10.1051/0004-6361/201732234. S2CID   73565379.
5. "TYC 3466-819-1". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2013-10-29.
6. Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi: 10.1086/498708 . ISSN   0004-6256. S2CID   18913331. Vizier catalog entry
7. Torres, G.; et al. (2007). "HAT-P-3b: A Heavy-Element-rich Planet Transiting a K Dwarf Star". The Astrophysical Journal Letters. 666 (2): L121 –L124. arXiv: 0707.4268 . Bibcode: 2007ApJ...666L.121T . doi: 10.1086/521792 . S2CID   16549542.
8. Chan, Tucker; et al. (2011). "The Transit Light-curve Project. XIV. Confirmation of Anomalous Radii for the Exoplanets TrES-4b, HAT-P-3b, and WASP-12b". The Astronomical Journal. 141 (6). 179. arXiv: 1103.3078 . Bibcode:2011AJ....141..179C. doi:10.1088/0004-6256/141/6/179. S2CID   56378813.
9. Todorov, Kamen O.; et al. (2013). "Warm Spitzer Photometry of Three Hot Jupiters: HAT-P-3b, HAT-P-4b and HAT-P-12b". The Astrophysical Journal. 770 (2). 102. arXiv: 1305.0833 . Bibcode:2013ApJ...770..102T. doi:10.1088/0004-637X/770/2/102. S2CID   51509956.
10. "Approved names". NameExoworlds. Archived from the original on 2019-12-19. Retrieved 2020-01-02.
11. "International Astronomical Union | IAU". www.iau.org. Archived from the original on 2022-12-05. Retrieved 2020-01-02.
12. Bonomo, A. S.; et al. (2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy and Astrophysics. 602. A107. arXiv: 1704.00373 . Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID   118923163.

External links

• "HAT-P-3". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2009-05-18.