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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation (pronunciation) |
Aquarius |
| Right ascension | 21h 09m 35.6477s |
| Declination | -11° 22′ 18.095″ |
| Apparent magnitude (V) | 4.519 |
| Characteristics | |
| Spectral type | G8III |
| U-B color index | 0.7 |
| B-V color index | 0.94 |
| Astrometry | |
| Radial velocity (Rv) | -11.8 km/s |
| Proper motion (μ) | RA: 92.31 mas/yr Dec.: -15.76 mas/yr |
| Parallax (π) | 19.93 ± 0.77 mas |
| Distance | 164 ± 6 ly (50 ± 2 pc) |
| Absolute magnitude (MV) | 5.752 |
| Details | |
| Mass | 1,1 M☉ |
| Radius | 1,1 R☉ |
| Luminosity | 1,2 L☉ |
| Temperature | 5,000–6,000 K |
| Metallicity | ? |
| Rotation | 0,008981 Year |
| Age | ? years |
| Other designations | |
|
Albulaan, 13 Aquarii, HD 201381, N30 4678, TYC 5779-1803-1, HIC 104459, PLX 5086, UBV M 25477, BD-11° 5538, HIP 104459, PMC 90-93 558, UBV 18305, FK5 794, HR 8093, PPM 238460, YZC 11 7501, GC 29571, IRAS 21068-1134, ROT 3080, GCRV 13297, IRC -10557, SACS 465, JP11 3319, SAO 164182, GSC 05779-01803, 2MASS J21093564-1122180.
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| Database references | |
| SIMBAD | data |
Nu Aquarii (ν Aqr / ν Aquarii) is a star in the constellation Aquarius. It shares the traditional name Albulaan with μ Aquarii. The name derives from an Arabic term al-bulacān meaning "the two swallowers".
Nu Aquarii is a yellow G-type giant with an apparent magnitude of +4.50. It is approximately 164 light years from Earth.
Reference
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