Psi3 Aquarii

For other stars with this Bayer designation, see ψ Aquarii.
ψ3 Aquarii
Location of ψ3 Aquarii (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 23h 18m 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]
Distance262 ± 9 ly
(80 ± 3 pc)
Absolute magnitude (MV)+0.47[5]
Details
Radius2[6] R☉
Luminosity70[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
SIMBADdata

Psi3 Aquarii, Latinized from ψ3 Aquarii, is the Bayer designation for a visual binary star[9] system in the constellation of Aquarius. 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 (80 parsecs).[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 erg s−1. This radiation most likely comes from the companion star.[9]

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