Omega Aurigae
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Auriga |
| Right ascension | 04h 59m 15.40974s[1] |
| Declination | +37° 53′ 24.8816″[1] |
| Apparent magnitude (V) | 4.95[2] |
| Characteristics | |
| Spectral type | A1 V[3] |
| U−B color index | +0.01[2] |
| B−V color index | +0.05[2] |
| R−I color index | 0.03 |
| Astrometry | |
| Radial velocity (Rv) | +5[4] km/s |
| Proper motion (μ) | RA: +46.35[1] mas/yr Dec.: -97.80[1] mas/yr |
| Parallax (π) | 20.5 ± 0.94[1] mas |
| Distance | 159 ± 7 ly (49 ± 2 pc) |
| Details | |
| Radius | 2.1–2.7[5] R☉ |
| Surface gravity (log g) | 4.33[3] cgs |
| Temperature | 9,230[3] K |
| Metallicity [Fe/H] | –0.12[3] dex |
| Rotational velocity (v sin i) | 107[6] km/s |
| Other designations | |
Omega Aurigae (ω Aurigae) is the Bayer designation for a double star[8] in the northern constellation of Auriga. Its apparent magnitude is 4.95,[2] which is bright enough to be seen with the naked eye. The distance to this star, as determined using parallax measurements, is approximately 159 light-years (49 parsecs).[1] This is an A-type main sequence star with a stellar classification of A1 V.[3] It has a magnitude 8.18 companion at an angular separation of 4.99 arcseconds.[8]
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. Note: see VizieR catalogue I/311.
- ↑ 2.0 2.1 2.2 2.3 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.
- ↑ 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.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
External links
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