GSC 03549-02811
Main sequence star in the constellation Draco / From Wikipedia, the free encyclopedia
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GSC 03549-02811 (sometimes referred to as Kepler-1, or either TrES-2A or TrES-2 parent star in reference to its exoplanet TrES-2b)[7] is a yellow main-sequence star similar to the Sun. This star is located approximately 704 light-years away in the constellation of Draco. The apparent magnitude of this star is 11.41, which means it is not visible to the naked eye but can be seen with a medium-sized amateur telescope on a clear dark night. The age of this star is about 5 billion years.[4]
Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Apparent magnitude (V) ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Draco |
A | |
Right ascension | 19h 07m 14.0376s[1] |
Declination | +49° 18′ 59.091″[1] |
Apparent magnitude (V) | 11.41 |
B | |
Right ascension | ~19h 07m 14s[2] |
Declination | ~+49° 18′ 59″[2] |
Characteristics | |
A | |
Spectral type | G0V[3] |
Apparent magnitude (B) | ~12.030[4] |
Apparent magnitude (V) | 11.411±0.005[4] |
Apparent magnitude (I) | 11.07[2] |
Apparent magnitude (Z) | 11.04[2] |
Apparent magnitude (J) | 10.232±0.020[5] |
Apparent magnitude (H) | 9.920±0.026[5] |
Apparent magnitude (K) | 9.846±0.022[5] |
Variable type | Planetary transit[3] |
B | |
Spectral type | K[2] |
Apparent magnitude (I) | 14.73[2] |
Apparent magnitude (Z) | 14.47[2] |
Astrometry | |
Proper motion (μ) | RA: 5.434(15) mas/yr[1] Dec.: 1.572(16) mas/yr[1] |
Parallax (π) | 4.6308 ± 0.0116 mas[1] |
Distance | 704 ± 2 ly (215.9 ± 0.5 pc) |
Details | |
A | |
Mass | 1.05[2] M☉ |
Radius | 1.000+0.036 −0.033[6] R☉ |
Temperature | 5850±50[6] K |
Metallicity | −0.15±0.1[6] |
Age | 5.1+2.7 −2.3×109[6] years |
B | |
Mass | 0.67[2] M☉ |
Other designations | |
Database references | |
SIMBAD | data |
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