39 Aquarii
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 12m 25.75608s[1] |
| Declination | −14° 11′ 38.2442″[1] |
| Apparent magnitude (V) | 6.03[2] |
| Characteristics | |
| Spectral type | F0 V[3] |
| U−B color index | +0.00[4] |
| B−V color index | +0.38[2] |
| Astrometry | |
| Radial velocity (Rv) | +15.2[5] km/s |
| Proper motion (μ) | RA: +23.89[1] mas/yr Dec.: -47.43[1] mas/yr |
| Parallax (π) | 23.78 ± 0.72[1] mas |
| Distance | 137 ± 4 ly (42 ± 1 pc) |
| Absolute magnitude (MV) | 2.92[6] |
| Details | |
| Surface gravity (log g) | 3.99[3] cgs |
| Temperature | 6,806[3] K |
| Metallicity [Fe/H] | –0.21[3] dex |
| Age | 1.8[6] Gyr |
| Other designations | |
39 Aquarii (abbreviated 39 Aqr) is a star in the constellation of Aquarius. 39 Aquarii is its Flamsteed designation. It is a faint naked eye star with an apparent visual magnitude of 6.03.[2] Based upon an annual parallax shift of 23.78 measured with a 3% margin of error,[1] this star is at a distance of around 137 light-years (42 parsecs) from Earth.
The stellar classification of this star is F0 V;[3] hence it belongs to the category of F-type main sequence stars. It is a double star with a magnitude 9.3 companion at an angular separation of 0.6 arcseconds along a position angle of 257°.[7]
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 3.2 3.3 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
