| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h18m 57.67658s[1] |
| Declination | –09° 36′ 38.7054″[1] |
| Apparent magnitude (V) | 4.98[2] |
| Characteristics | |
| Spectral type | A0 V[3] |
| U−B color index | –0.02 |
| B−V color index | –0.02[2] |
| Astrometry | |
| Radial velocity (Rv) | –10[4] km/s |
| Proper motion (μ) | RA: +43.33[1] mas/yr Dec.: –8.30[1] mas/yr |
| Parallax (π) | 12.47 ± 0.43 mas[1] |
| Distance | 262 ± 9 ly (80 ± 3 pc) |
| Absolute magnitude (MV) | +0.47[5] |
| Details | |
| Radius | 2[6] R☉ |
| Luminosity | 70[5] L☉ |
| Rotational velocity (v sin i) | 144[7] km/s |
| Other designations | |
Psi3 Aqr, 95 Aquarii, ADS 16671, BD–10 6094, FK5 1609, HD 219832, HIP 115115, HR 8865, SAO 146635.[8] | |
| Database references | |
| SIMBAD | data |
Psi3 Aquarii, Latinized from ψ3 Aquarii, is the Bayer designation for a visual binary star[9] system in the constellationofAquarius. It has an apparent visual magnitude of 4.98,[2] which is bright enough to be seen with the naked eye. Parallax measurements give a distance estimate of roughly 262 light-years (80parsecs).[1]
The main component of this system is an A-type main sequence star with a stellar classification of A0 V.[3] Its companion is an 11th magnitude star 1.5 arcseconds from the primary.[10] This system is an X-ray source with a luminosity of 8.34 × 1029 ergs−1. This radiation most likely comes from the companion star.[9]
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