Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Lyra [1] |
Right ascension | 19h 04m 09.8516s [2] |
Declination | +36° 37′ 57.447″ [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: −32.168(12)
mas/
yr
[2] Dec.: −20.463(13) mas/ yr [2] |
Parallax (π) | 6.2648 ± 0.0111 mas [2] |
Distance | 520.6 ± 0.9
ly (159.6 ± 0.3 pc) |
Absolute magnitude (MV) | +5.81[ citation needed] |
Details[ citation needed] | |
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 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
GSC 02652-01324 is an orange dwarf main sequence star approximately 521 light-years away in the constellation of Lyra (the Lyre). [4] [1] [2]
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]
Additional planets in the systems are suspected due to transit timing variations of TrES-1b. [8]
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 |
3.0300689±0.0000007 [8] | <0.012 | 90+0 −1.1 ° |
1.067+0.021 −0.022 RJ |
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Lyra [1] |
Right ascension | 19h 04m 09.8516s [2] |
Declination | +36° 37′ 57.447″ [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: −32.168(12)
mas/
yr
[2] Dec.: −20.463(13) mas/ yr [2] |
Parallax (π) | 6.2648 ± 0.0111 mas [2] |
Distance | 520.6 ± 0.9
ly (159.6 ± 0.3 pc) |
Absolute magnitude (MV) | +5.81[ citation needed] |
Details[ citation needed] | |
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 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
GSC 02652-01324 is an orange dwarf main sequence star approximately 521 light-years away in the constellation of Lyra (the Lyre). [4] [1] [2]
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]
Additional planets in the systems are suspected due to transit timing variations of TrES-1b. [8]
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 |
3.0300689±0.0000007 [8] | <0.012 | 90+0 −1.1 ° |
1.067+0.021 −0.022 RJ |