GSC 02652-01324
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 19h 04m 09s[1] |
| Declination | +36° 37′ 57″[1] |
| Apparent magnitude (V) | +11.79[1] |
| Characteristics | |
| Spectral type | K0V[1] |
| Apparent magnitude (B) | ~12.57[1] |
| Apparent magnitude (V) | ~11.79[1] |
| Apparent magnitude (J) | 10.294 ±0.022[1] |
| Apparent magnitude (H) | 9.887 ±0.021[1] |
| Apparent magnitude (K) | 9.819 ±0.019[1] |
| Astrometry | |
| Proper motion (μ) | RA: -40.2[1] mas/yr Dec.: -21.5[1] mas/yr |
| Parallax (π) | 6.37 ± ? mas |
| Distance | 512 ly (157 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 |
| Extrasolar Planets Encyclopaedia | data |
GSC 02652-01324 is an orange dwarf main sequence star approximately 512 light-years away in the constellation of Lyra (the Lyre).[1]
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.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| TrES-1b | 0.61 ± 0.06 MJ | 0.0393 ± 0.0007 | 3.030065 ± 0.000008 | 0.135 ± 0.096 | — | — |
See also
References
- 1 2 3 4 5 6 7 8 9 10 11 12 13 "SIMBAD query result: NAME TrES-1 Parent Star -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-22.
- ↑ 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.
External links
- "TrES-1". Exoplanets. Retrieved 2009-04-28.
Coordinates: 
19h 04m 09s, +36° 37′ 57″
| ||||||||||||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Saturday, December 27, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.