83 Aquarii
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 05m 09.78684s |
| Declination | −07° 41′ 37.6853″ |
| Apparent magnitude (V) | 5.43 (6.20/6.34) |
| Characteristics | |
| Spectral type | F2 Vn + F2 V |
| U−B color index | +0.07 |
| B−V color index | +0.30 |
| Astrometry | |
| Radial velocity (Rv) | −13 km/s |
| Proper motion (μ) | RA: +122.41 mas/yr Dec.: +7.11 mas/yr |
| Parallax (π) | 15.57±0.61 mas |
| Distance | 209 ± 8 ly (64 ± 3 pc) |
| Orbit | |
| Companion | 83 Aquarii B |
| Period (P) | 21.840 ± 0.019 yr |
| Semi-major axis (a) | 0.2026 ± 0.0007″ |
| Eccentricity (e) | 0.3878 ± 0.0025 |
| Inclination (i) | 48.01 ± 0.42° |
| Longitude of the node (Ω) | 204.87 ± 0.50° |
| Periastron epoch (T) | 1983.108 ± 0.022 |
| Argument of periastron (ω) (secondary) | 82.83 ± 0.45° |
| Other designations | |
| BD−08 6018, h Aquarii, HD 218060, HIP 113996, HR 8782, SAO 146498. | |
| Database references | |
| SIMBAD | data |
83 Aquarii (abbreviated 83 Aqr) is a binary star system in the equatorial constellation of Aquarius. The combined apparent visual magnitude of the pair is 5.43, which is faintly visible to the naked eye. Based upon an annual parallax shift of 15.57 milliarcseconds, it is located at a distance of around 209 light-years (64 parsecs) from Earth.
Both stars are F-type main sequence stars. The first component has an apparent magnitude of 6.20; the second is magnitude 6.34. They are orbiting each other with a period of 21.84 years with an eccentricity of 0.388.
On 11 April 2024, it had a close conjunction (geocentric separation <1') with Saturn.: 167