QY Aurigae
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Auriga |
| Right ascension | 07h 10m 01.83458s |
| Declination | 38° 31′ 46.0672″ |
| Characteristics | |
| Spectral type | M5Ve + M5Ve |
| U−B color index | +1.18 |
| B−V color index | +1.71 |
| Variable type | RS CVn |
| Astrometry | |
| Radial velocity (Rv) | 41.792 ± 0.025 km/s |
| Proper motion (μ) |
RA: -437.44 mas/yr Dec.: -947.44 mas/yr |
| Parallax (π) | 158.88 ± 0.72mas |
| Distance | 20.53 ± 0.09 ly (6.29 ± 0.03 pc) |
| Orbit | |
| Period (P) | 10.42672 ± 0.00006 d |
| Semi-major axis (a) | 11.10 ± 0.05″ |
| Eccentricity (e) | 0.3203 ± 0.0009 |
| Inclination (i) | 100.39 ± 0.03° |
| Longitude of the node (Ω) | 89.98 ± 0.07° |
|
Argument of periastron (ω) (secondary) |
211.98 ± 0.19° |
|
Semi-amplitude (K1) (primary) |
34.814 ± 0.036 km/s |
|
Semi-amplitude (K2) (secondary) |
40.874 ± 0.052 km/s |
| Details | |
| Gliese 268 A | |
| Mass | 0.22599(65) M☉ |
| Gliese 268 B | |
| Mass | 0.19248(56) M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Gliese 268 (QY Aurigae) is a RS Canum Venaticorum variable (RS CVn) star in the Auriga constellation. RS CVn variables are binary star systems with a strong magnetic field influenced by each star's rotation, which is accelerated by the tidal effects of the other star in the system. Gliese 268 in particular is composed of a binary system of two M-type dwarfs, or red dwarfs, and is one of the one hundred closest star systems to the Earth. The primary component of the system has an apparent magnitude of 12.05, and the secondary component an apparent magnitude of 12.45. Neither is visible to the naked eye from Earth.
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