GSC 02620-00648
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Hercules |
| A | |
| Right ascension | 17h 53m 13.0490s |
| Declination | +37° 12′ 42.586″ |
| Apparent magnitude (V) | 11.592 |
| C | |
| Right ascension | 17h 53m 13.0496s |
| Declination | +37° 12′ 44.139″ |
| Apparent magnitude (V) | 13.85 |
| Characteristics | |
| Spectral type | F8/K or M |
| Apparent magnitude (B) | 12.1120005±0.007 |
| Apparent magnitude (J) | 10.583±0.018 |
| Apparent magnitude (H) | 10.350±0.015 |
| Apparent magnitude (K) | 10.330±0.019 |
| Astrometry | |
| A | |
| Radial velocity (Rv) | −15.65±0.82 km/s |
| Proper motion (μ) | RA: −6.382 mas/yr Dec.: −20.891 mas/yr |
| Parallax (π) | 1.9686±0.0136 mas |
| Distance | 1,660 ± 10 ly (508 ± 4 pc) |
| C | |
| Proper motion (μ) | RA: −6.307 mas/yr Dec.: −20.387 mas/yr |
| Parallax (π) | 1.9657 ± 0.1076 mas |
| Distance | 1,660 ± 90 ly (510 ± 30 pc) |
| Details | |
| A | |
| Mass | 1.45±0.05 M☉ |
| Radius | 1.81±0.08 R☉ |
| Luminosity | 4.6 L☉ |
| Surface gravity (log g) | 4.09±0.03 cgs |
| Temperature | 6,295±65 K |
| Metallicity [Fe/H] | +0.28±0.09 dex |
| Rotational velocity (v sin i) | 8.5±0.5 km/s |
| Age | 2.2±0.4 Gyr |
| C | |
| Mass | 0.59 M☉ |
| Other designations | |
| TrES-4 Parent Star, TOI-2124, TIC 159742538, TYC 2620-648-1, GSC 02620-00648, 2MASS J17531304+3712426 | |
| Database references | |
| SIMBAD | A |
| C | |
| Exoplanet Archive | data |
GSC 02620-00648 is a binary star system located approximately 1,660 light-years away in the constellation Hercules. The brighter of the pair is a magnitude 12 star about 1.45 times as massive as the Sun. It hosts one known exoplanet, TrES-4b.