GSC 02652-01324
GSC 02652-01324 is an orange dwarf main sequence star approximately 523 light-years away in the constellation of Lyra (the Lyre).[4][1][2]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra[1] |
| Right ascension | 19h 04m 09.8516s[2] |
| Declination | +36° 37′ 57.4459″[2] |
| Apparent magnitude (V) | +11.806[3] |
| Characteristics | |
| Spectral type | K0V[4] |
| Apparent magnitude (B) | 12.405±0.005[3] |
| Apparent magnitude (V) | 11.806[3] |
| Apparent magnitude (J) | 10.294±0.022[5] |
| Apparent magnitude (H) | 9.887±0.021[5] |
| Apparent magnitude (K) | 9.819±0.019[5] |
| Variable type | Planetary transit variable[4] |
| Astrometry | |
| Proper motion (μ) | RA: −32.207±0.046[2] mas/yr Dec.: −20.401±0.046[2] mas/yr |
| Parallax (π) | 6.2346 ± 0.0285[2] mas |
| Distance | 523 ± 2 ly (160.4 ± 0.7 pc) |
| Absolute magnitude (MV) | +5.81 |
| Details | |
| Mass | 0.87 ± 0.03 M☉ |
| Radius | 0.82 ±0.02 R☉ |
| Luminosity | 0.49 L☉ |
| Temperature | 5250 K |
| Metallicity | 0.001 ± 0.004 |
| Age | 2.5 ± 1.4× 109 years |
| Other designations | |
| Database references | |
| SIMBAD | data |
Planetary system
In 2004 the extrasolar planet TrES-1b was found to be orbiting this star by the Trans-Atlantic Exoplanet Survey using the transit method. The planet was detected crossing its parent star using a small 4-inch-diameter (100 mm) telescope. The discovery was confirmed by the Keck Observatory using the radial velocity method, allowing its mass to be determined.[4][7]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.697+0.028 −0.027 MJ |
0.03926+0.00058 −0.00060 |
3.03006973±0.00000018 | <0.012 | 90+0 −1.1° |
1.067+0.021 −0.022 RJ |
References
- Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Henden, A. A.; et al. (2016). "VizieR Online Data Catalog: AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)". VizieR On-line Data Catalog: II/336. Originally Published in: 2015AAS...22533616H. 2336. Bibcode:2016yCat.2336....0H.Vizier catalog entry
- Alonso, Roi; et al. (2004). "TrES-1: The Transiting Planet of a Bright K0V Star". The Astrophysical Journal Letters. 613 (2): L153–L156. arXiv:astro-ph/0408421. Bibcode:2004ApJ...613L.153A. doi:10.1086/425256.
- Skrutskie, M. F.; et al. (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
- "TrES-1 Parent Star". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-02-01.
- "Keck confirms transit planet" (Press release). Kamuela, Hawaii: W. M. Keck Observatory. August 24, 2004. Retrieved August 14, 2019.
- 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.
- Baluev, Roman V.; et al. (2015). "Benchmarking the power of amateur observatories for TTV exoplanets detection". Monthly Notices of the Royal Astronomical Society. 450 (3): 3101–3113. arXiv:1501.06748. Bibcode:2015MNRAS.450.3101B. doi:10.1093/mnras/stv788.
- Torres, Guilermo; et al. (2008). "Improved Parameters for Extrasolar Transiting Planets". Astrophysical Journal. 677 (2): 1324–1342. arXiv:0801.1841. Bibcode:2008ApJ...677.1324T. doi:10.1086/529429.
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