Omicron Tauri
Template:Location mark Location of ο Tauri (circled) | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 3.61[2] |
| Characteristics | |
| Spectral type | G6 III[3] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[4] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[5] Dec.: Script error: No such module "val". mas/yr[5] |
| Parallax (π) | 12.11±0.87 mas[5] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | Script error: No such module "val".[6] |
| Orbit[7] | |
| Period (P) | 1654.9 d |
| Eccentricity (e) | 0.26 |
| Periastron epoch (T) | 2429974.34 JD |
| Argument of periastron (ω) (secondary) | 155.6° |
| Semi-amplitude (K1) (primary) | 4.4 km/s |
| Details[6] | |
| ο Tauri A | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val". Template:Solar radius |
| Luminosity | 302[8] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val". dex |
| Rotational velocity (v sin i) | Script error: No such module "val". km/s |
| Age | Script error: No such module "val". Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[1] | |
| Database references | |
| SIMBAD | data |
Script error: No such module "Check for unknown parameters".
ο Tauri, Latinized as Omicron Tauri, is a binary star system in the constellation Taurus, near the constellation border with Cetus. It has a yellow hue and is visible to the naked eye with an apparent visual magnitude of 3.61.[2] It is approximately 270 light years from the Sun based on parallax,[5] but is drifting closer with a radial velocity of −20 km/s.[4] As the westernmost bright point of light in Taurus, this system has the Flamsteed designation 1 Tauri; Omicron Tauri is the Bayer designation.[1]
This is a single-lined spectroscopic binary[7] system with the two components orbiting each other over a period of Script error: No such module "convert". with an eccentricity of 0.263.[9] The visible component is an aging G-type giant with a stellar classification of G6 III.[3] This star has three times the mass of the Sun and 20[6]–18 times the Sun's radius. Based on the latter, interferometry-measured radius, it is rotating once every 533 days.[10] It is radiating 302[8] times the luminosity of the Sun from its photosphere at an effective temperature of 5,094 K.[6]
References
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- ↑ a b c d Template:Cite simbad
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Template:Cite DR2
- ↑ a b c Script error: No such module "Citation/CS1". Omicron Tauri's database entry at VizieR.
- ↑ a b c d Script error: No such module "Citation/CS1". Omicron Tauri's database entry at VizieR.
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1". Omicron Tauri's database entry at VizieR.
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
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External links
- Script error: No such module "citation/CS1".