Omega1 Aquarii
From Infogalactic: the planetary knowledge core
- For other star systems with this Bayer designation, see Omega Aquarii.
Observation data Epoch J2000 Equinox J2000 |
|
---|---|
Constellation | Aquarius |
Right ascension | 23h 39m 47.06778s[1] |
Declination | –14° 13′ 19.8376″[1] |
Apparent magnitude (V) | 4.96[2] |
Characteristics | |
Spectral type | A7 IV[3] |
B−V color index | +0.25[2] |
Astrometry | |
Radial velocity (Rv) | –2[4] km/s |
Proper motion (μ) | RA: +51.25[1] mas/yr Dec.: –55.35[1] mas/yr |
Parallax (π) | 22.94 ± 1.05[1] mas |
Distance | 142 ± 7 ly (44 ± 2 pc) |
Details | |
Rotational velocity (v sin i) | 105[5] km/s |
Age | 0.6[6] Gyr |
Other designations | |
Data sources: | |
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
Omega1 Aquarii (ω1 Aqr, ω1 Aquarii) is the Bayer designation for a star in the equatorial constellation of Aquarius. With an apparent visual magnitude of 4.96,[2] this star is visible to the naked eye from the suburbs. The distance to this star can be estimated from the parallax as roughly 142 light-years (44 parsecs), with a 5% margin of error.[1]
This is a subgiant star, having a stellar classification of A7 IV.[3] It is spinning rapidly with a projected rotational velocity of 105 km/s.[5]
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.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.