GSC 02652-01324
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Lyra |
| Right ascension | 19h 04m 09s |
| Declination | +36° 37′ 57″ |
| Apparent magnitude (V) | +11.79 |
| Characteristics | |
| Spectral type | K0V |
| U-B color index | ? |
| B-V color index | ? |
| Variable type | ? |
| Astrometry | |
| Radial velocity (Rv) | ? km/s |
| Proper motion (μ) | RA: -40.2 mas/yr Dec.: -21.5 mas/yr |
| Parallax (π) | 6.37 ± ? mas |
| Distance | 512 ly (157 pc) |
| Absolute magnitude (MV) | +5.81 |
| Details | |
| Mass | 0.87 M☉ |
| Radius | 0.85 R☉ |
| Luminosity | 0.49 L☉ |
| Temperature | 5250 K |
| Metallicity | 0.001 ± 0.004 |
| Rotation | ? |
| Age | ? years |
| Other designations | |
|
2MASS 19040985+3637574
|
|
| Database references | |
| SIMBAD | data |
GSC 02652-01324 is a Guide Star Catalog star about 512 light-years away in the constellation Lyra. The star has a mass of 0.88 ± 0.07 MS.
[edit] Planetary system
An extrasolar planet, designated TrES-1 was discovered by the Trans-Atlantic Exoplanet Survey by detecting the transit of the planet across its parent star using a small 4-inch diameter telescope. The discovery was confirmed by the Keck Observatory using the radial velocity method, allowing its mass to be determined.
| Companion (in order from star) |
Mass (MJ) |
Orbital period (days) |
Semimajor axis (AU) |
Eccentricity |
|---|---|---|---|---|
| TrES-1 | 0.61 ± 0.06 | 3.030065 ± 0.000008 | 0.0393 ± 0.0007 | 0.135 ± 0.096 |
[edit] See also
[edit] External links
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