Omicron Tauri
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 24m 48.79796s[1] |
| Declination | +09° 01′ 43.9489″[1] |
| Apparent magnitude (V) | +4.875 ± 0.012[2] |
| Characteristics | |
| Spectral type | B2 V[2] |
| U−B color index | −0.768 ± 0.005[2] |
| B−V color index | −0.145 ± 0.006[2] |
| Astrometry | |
| Radial velocity (Rv) | –21.0 km/s |
| Proper motion (μ) | RA: –67.04 ± 1.03[1] mas/yr Dec.: –78.04 ± 1.02[1] mas/yr |
| Parallax (π) | 11.21 ± 0.87[1] mas |
| Distance | 290 ± 20 ly (89 ± 7 pc) |
| Details | |
| Surface gravity (log g) | 4.15 ± 0.07[2] cgs |
| Temperature | 20,700 ± 200[2] K |
| Rotational velocity (v sin i) | 25 ± 2[2] km/s |
| Other designations | |
Omicron Tauri (ο Tau, ο Tauri) is a star in the constellation Taurus. Omicron Tauri is a yellow G-type giant with an apparent magnitude of +3.61. This star has three times the mass of the Sun and fifteen[3] to eighteen times the Sun's radius. Based on the latter, interferometry-measured radius, it is rotating once every 533 days.[4] It is approximately 212 light years from Earth and is radiating 155 times the luminosity of the Sun.[5]
This is a binary star system with the two components orbiting each other over a period of 1,655 days at an eccentricity of 0.263.[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 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.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
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