GSC 02652-01324
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Lyra[1] |
Right ascension | 19h 04m 09.8515s[2] |
Declination | +36° 37′ 57.439″[2] |
Apparent magnitude (V) | +11.79[3] |
Characteristics | |
Spectral type | K0V[3] |
Apparent magnitude (B) | 12.57[3] |
Apparent magnitude (V) | 11.79[3] |
Apparent magnitude (J) | 10.294±0.022[4] |
Apparent magnitude (H) | 9.887±0.021[4] |
Apparent magnitude (K) | 9.819±0.019[4] |
Variable type | Planetary transit variable[3] |
Astrometry | |
Proper motion (μ) | RA: −32.107±1.756[2] mas/yr Dec.: −19.926±1.365[2] mas/yr |
Parallax (π) | 6.25 ± 0.32 mas[2] |
Distance | 520 ± 30 ly (160 ± 8 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 |
GSC 02652-01324 is an orange dwarf main sequence star approximately 520 light-years away in the constellation of Lyra (the Lyre).[3][1][2]
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.[3]
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 | — | — |
See also
References
- ^ a b 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
- ^ a b c d e f Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.Gaia Data Release 1 catalog entry
- ^ a b c d e f g 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.
- ^ a b c 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.
- ^ 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.
External links
- "TrES-1". Exoplanets. Retrieved 2009-04-28.