Omega² Aquarii
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- For other star systems with this Bayer designation, see Omega Aquarii.
|
ω2 Aquarii |
|
| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Aquarius |
| Right ascension | 23h 42m 43.3441s |
| Declination | -14° 32′ 41.657″ |
| Apparent magnitude (V) | 4.483 |
| Characteristics | |
| Spectral type | B9V |
| U-B color index | -0.12 |
| B-V color index | -0.04 |
| Astrometry | |
| Radial velocity (Rv) | 3 km/s |
| Proper motion (μ) | RA: 98.35 mas/yr Dec.: -66.78 mas/yr |
| Parallax (π) | 21.16 ± 0.87 mas |
| Distance | 154 ± 6 ly (47 ± 2 pc) |
| Absolute magnitude (MV) | 4.451 |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Visual binary orbit | |
| Companion | ω2 Aquarii B |
| Semimajor axis (a) | 5.3" |
| Inclination (i) | 82° |
| Other designations | |
| Database references | |
| SIMBAD | data |
Omega2 Aquarii (ω2 Aqr / ω2 Aquarii) is a star in the constellation Aquarius. It is approximately 154 light years from Earth.
ω2 Aquarii is a blue-white B-type main sequence dwarf with an apparent magnitude of +4.49. It has a companion, ω2 Aquarii B, 5 arcseconds away, which is thought to be an optical companion.
[edit] Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Database references |
|---|---|---|---|---|
| ω2 Aquarii B (GJ 9836 B) | 23h 42m 43.7s | -14° 32' 42 | 10.6 | Simbad |
[edit] Reference
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