Psi3 Aquarii
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 Location of ψ3 Aquarii (circled) |
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| 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[1] mas |
| Distance | 262 ± 9 ly (80 ± 3 pc) |
| Details | |
| Radius | 2[5] R☉ |
| Rotational velocity (v sin i) | 144[6] km/s |
| Other designations | |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
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Psi3 Aquarii is the Bayer designation for a visual binary star[8] 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.[9] 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.[8]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
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