Qatar-1
Qatar-1 is an orange main sequence star in the constellation of Draco.
| Observation data Epoch J2000 Equinox | |
|---|---|
| Constellation | Draco |
| Right ascension | 20h 13m 31.6176s |
| Declination | 65° 09′ 43.4909″ |
| Apparent magnitude (V) | 12.84 |
| Characteristics | |
| Evolutionary stage | main sequence star |
| Spectral type | K3V |
| B−V color index | 1.06 |
| V−R color index | 0.19 |
| J−H color index | 0.472 |
| J−K color index | 0.590 |
| Variable type | planetary transit variable |
| Astrometry | |
| Radial velocity (Rv) | -37.835±0.063 km/s |
| Proper motion (μ) | RA: 12.636±0.048 mas/yr Dec.: 58.170±0.041 mas/yr |
| Parallax (π) | 5.3587 ± 0.0231 mas |
| Distance | 609 ± 3 ly (186.6 ± 0.8 pc) |
| Details | |
| Mass | 0.85±0.03 M☉ |
| Radius | 0.823±0.025 R☉ |
| Surface gravity (log g) | 4.536±0.024 cgs |
| Temperature | 4861±125 K |
| Metallicity [Fe/H] | 0.2±0.1 dex |
| Rotational velocity (v sin i) | 1.7±0.3 km/s |
| Age | 4.5 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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