GSC 03949-00967

Last updated
GSC 03949-00967
Observation data
Epoch J2000       Equinox J2000
Constellation Cygnus
Right ascension 20h 20m 53.2482s [1]
Declination +59° 26′ 55.575″ [1]
Apparent magnitude  (V)13.58
Characteristics
Spectral type G/K [2]
Apparent magnitude  (J)12.111±0.027 [3]
Apparent magnitude  (H)11.673±0.023 [3]
Apparent magnitude  (K)11.591±0.019 [3]
Astrometry
Radial velocity (Rv)−13.88±1.41 [1] km/s
Proper motion (μ)RA: 9.198(14) mas/yr [1]
Dec.: 30.739(13) mas/yr [1]
Parallax (π)2.7654±0.0115  mas [1]
Distance 1,179 ± 5  ly
(362 ± 2  pc)
Details [4] [5] [2]
Mass 0.901±0.029  M☉
Radius 0.851+0.014
−0.013  R☉
Surface gravity (log g)4.517±0.012  cgs
Temperature 5171±36  K
Metallicity [Fe/H]0.20±0.8  dex
Rotational velocity (v sin i)3.80±0.36 km/s
Age 7.38±1.87  Gyr
Other designations
TrES-5 Parent Star, TOI-3612, TIC 233948455, GSC 03949-00967, 2MASS J20205324+5926556 [6]
Database references
SIMBAD data
Exoplanet Archive data

GSC 03949-00967 is a G-type main-sequence star about 1179 light-years away in the constellation Cygnus. It is older than the Sun, yet is enriched in heavy elements compared to the Sun, having 160% of the solar abundance. It hosts one known exoplanet, TrES-5b. [4]

Contents

Nomenclature

The designation GSC 03949-00967 comes from the Guide Star Catalog.

The star is sometimes called TrES-5, [7] in reference to its planet discovered by the Trans-Atlantic Exoplanet Survey (TrES). The discovery paper [4] and the SIMBAD database [6] use this designation for the planet itself, but other sources call the star TrES-5 and the planet TrES-5b, [5] [8] following the standard exoplanet naming convention.

Planetary system

In 2011, a transiting hot Jupiter planet, TrES-5b, was detected by the Trans-Atlantic Exoplanet Survey. [4] The host star was one of the faintest stars to host a planetary companion detected by the transit method at the time of discovery. [2] The planet’s equilibrium temperature is 1480±24  K . [5]

An additional planet on a 4-day orbit in the system was suspected since 2018 based on transit-timing variations, [8] but refuted in 2021. A different object on a wide orbit, either star or planet, is still suspected. [9]

The GSC 03949-00967 planetary system [8]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 1.784±0.066  MJ 0.02447±0.000211.482247063±0.00000050.017±0.01284.529±0.005° 1.209±0.021  RJ

References

  1. 1 2 3 4 5 6 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.
  2. 1 2 3 Maciejewski, G.; Dimitrov, D.; Mancini, L.; Southworth, J.; Ciceri, S.; D'Ago, G.; Bruni, I.; Raetz, St.; Nowak, G.; Ohlert, J.; Puchalski, D.; Saral, G.; Derman, E.; Petrucci, R.; Jofre, E.; Seeliger, M.; Henning, T. (2016), "New Transit Observations for HAT-P-30 b, HAT-P-37 b, TrES-5 b, WASP-28 b, WASP-36 b and WASP-39 b", Acta Astronomica, 66 (1): 55, arXiv: 1603.03268 , Bibcode:2016AcA....66...55M
  3. 1 2 3 Skrutskie, Michael F.; et al. (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 . Vizier catalog entry
  4. 1 2 3 4 Mandushev, Georgi; Quinn, Samuel N.; Buchhave, Lars A.; Dunham, Edward W.; Rabus, Markus; Oetiker, Brian; Latham, David W.; Charbonneau, David; Brown, Timothy M.; Belmonte, Juan A.; O'Donovan, Francis T. (2011), "TrES-5: A Massive Jupiter-sized Planet Transiting A Cool G-dwarf", The Astrophysical Journal, 741 (2): 114, arXiv: 1108.3572 , Bibcode:2011ApJ...741..114M, doi:10.1088/0004-637X/741/2/114, S2CID   118671116
  5. 1 2 3 Mislis, D.; Mancini, L.; Tregloan-Reed, J.; Ciceri, S.; Southworth, J.; d'Ago, G.; Bruni, I.; Baştürk, Ö.; Alsubai, K. A.; Bachelet, E.; Bramich, D. M.; Henning, Th.; Hinse, T. C.; Iannella, A. L.; Parley, N.; Schroeder, T. (2015), "High-precision multiband time series photometry of exoplanets Qatar-1b and TrES-5b", Monthly Notices of the Royal Astronomical Society, 448 (3): 2617–2623, arXiv: 1503.02246 , Bibcode:2015MNRAS.448.2617M, doi: 10.1093/mnras/stv197 , S2CID   53561305
  6. 1 2 "GSC 03949-00967". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2022-01-06.
  7. ↑ "TrES-5 Overview". NASA Exoplanet Archive . Retrieved 11 March 2025.
  8. 1 2 3 Sokov, Eugene N.; Sokova, Iraida A.; Dyachenko, Vladimir V.; Rastegaev, Denis A.; Burdanov, Artem; Rusov, Sergey A.; Benni, Paul; Shadick, Stan; Hentunen, Veli-Pekka; Salisbury, Mark; Esseiva, Nicolas; Garlitz, Joe; Bretton, Marc; Ogmen, Yenal; Karavaev, Yuri; Ayiomamitis, Anthony; Mazurenko, Oleg; Alonso, David; Velichko, Sergey F. (2018), "Transit timing analysis of the exoplanet TrES-5 b. Possible existence of the exoplanet TrES-5 c", Monthly Notices of the Royal Astronomical Society, 480 (1): 291–301, arXiv: 1806.03503 , Bibcode:2018MNRAS.480..291S, doi: 10.1093/mnras/sty1615 , S2CID   53665645
  9. ↑ Maciejewski, G.; et al. (December 2021). "Revisiting TrES-5 b: departure from a linear ephemeris instead of short-period transit timing variation". Astronomy & Astrophysics. 656. A88. arXiv: 2110.14294 . Bibcode: 2021A&A...656A..88M . doi: 10.1051/0004-6361/202142424 .
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