GSC 03949-00967
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 20h 20m 53.2482s[2] |
| Declination | +59° 26′ 55.575″[2] |
| Apparent magnitude (V) | 13.72[3] |
| Characteristics | |
| Evolutionary stage | main sequence[3] |
| Spectral type | G/K[4] |
| Apparent magnitude (J) | 12.111±0.027[5] |
| Apparent magnitude (H) | 11.673±0.023[5] |
| Apparent magnitude (K) | 11.591±0.019[5] |
| Astrometry | |
| Radial velocity (Rv) | −13.88±1.41[2] km/s |
| Proper motion (μ) | RA: 9.198(14) mas/yr[2] Dec.: 30.739(13) mas/yr[2] |
| Parallax (π) | 2.7654±0.0115 mas[2] |
| Distance | 1,179 ± 5 ly (362 ± 2 pc) |
| Details[6][7][4] | |
| 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[8] | |
| 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.[6]
Nomenclature
[edit]The designation GSC 03949-00967 comes from the Guide Star Catalog.
The star is sometimes called TrES-5,[9] in reference to its planet discovered by the Trans-Atlantic Exoplanet Survey (TrES). The discovery paper[6] and the SIMBAD database[8] use this designation for the planet itself, but other sources call the star TrES-5 and the planet TrES-5b,[7][10] following the standard exoplanet naming convention.
Planetary system
[edit]In 2011, a transiting hot Jupiter planet, TrES-5b, was detected by the Trans-Atlantic Exoplanet Survey.[6] The host star was one of the faintest stars to host a planetary companion detected by the transit method at the time of discovery.[4] The planet’s equilibrium temperature is 1480±24 K.[7]
An additional planet on a 4-day orbit in the system was suspected since 2018 based on transit-timing variations,[10] but refuted in 2021. A different object on a wide orbit, either star or planet, is still suspected.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.784±0.066 MJ | 0.02447±0.00021 | 1.482247063±0.0000005 | 0.017±0.012 | 84.529±0.005° | 1.209±0.021 RJ |
References
[edit]- ^ 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.
- ^ a b c d e 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.
- ^ a b c 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.
- ^ a b c 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.
- ^ a b c 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
- ^ a b c d 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.
- ^ a b c 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.
- ^ a b "GSC 03949-00967". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2022-01-06.
- ^ "TrES-5 Overview". NASA Exoplanet Archive. Retrieved 11 March 2025.
- ^ a b c 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.