Gamma Aquarii
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γ Aquarii |
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 21m 39.3754s |
| Declination | -01° 23′ 14.393″ |
| Apparent magnitude (V) | 3.847 |
| Characteristics | |
| Spectral type | A0V |
| U-B color index | -0.12 |
| B-V color index | -0.05 |
| Astrometry | |
| Radial velocity (Rv) | -15 km/s |
| Proper motion (μ) | RA: 129.24 mas/yr Dec.: 8.90 mas/yr |
| Parallax (π) | 20.67 ± 1.71 mas |
| Distance | 160 ± 10 ly (48 ± 4 pc) |
| Absolute magnitude (MV) | 3.815 |
| Details | |
| Mass | 3,1 M☉ |
| Radius | 2,1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Metallicity | ? |
| Rotation | 0,0051135863788 Year |
| Age | ? years |
| Orbit | |
| Companion | γ Aquarii B |
| Semimajor axis (a) | 36.5" |
| Inclination (i) | 146° |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
Gamma Aquarii (γ Aqr / γ Aquarii) is a star in the constellation Aquarius. It has the traditional name Sadachbia, from an Arabic expression سعد الأخبية sa‘d al-’axbiyah "luck of the homes (tents)".
It has an apparent magnitude of 3.84, and is 158 light years from Earth.
[edit] Location
The star's location in the sky is shown in the following map of the constellation Aquarius:
[edit] References
[edit] Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Database references |
|---|---|---|---|---|
| γ Aquarii B (BD-02 5741B) | 22h 21m 40.4s | -01° 23' 42 | 12.2 | Simbad |
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