99 Aquarii
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99 Aquarii
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99 Aquarii or b2 Aquarii |
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 26m 02.7861s |
| Declination | -20° 38′ 31.251″ |
| Apparent magnitude (V) | 4.387 |
| Characteristics | |
| Spectral type | K4III |
| U−B color index | 1.81 |
| B−V color index | 1.47 |
| Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | 15.7 km/s |
| Proper motion (μ) | RA: -50.13 mas/yr Dec.: -62.97 mas/yr |
| Parallax (π) | 10.57 ± 0.72 mas |
| Distance | 310 ± 20 ly (95 ± 6 pc) |
| Absolute magnitude (MV) | 5.885 |
| Details | |
| Mass | 0,8 M☉ |
| Radius | 0,9 R☉ |
| Luminosity | 0,4 L☉ |
| Temperature | 3,500–5,000 K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
| Database references | |
| SIMBAD | data |
99 Aquarii or b 2 Aquarii is a star in the constellation Aquarius. Its apparent magnitude is 4.38.
References
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