Upsilon Tauri
  | |
| Observation data ICRS )
| |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 26m 18.46368s[1] |
| Declination | +22° 48′ 48.8885″[1] |
| Apparent magnitude (V) | 4.28 – 4.31[2] |
| Characteristics | |
| Spectral type | A8 Vn[3] |
| U−B color index | +0.14[4] |
| B−V color index | +0.25[4] |
| Variable type | δ Scuti[2] |
| Absolute magnitude (MV) | +0.91[6] |
| Details | |
Myr | |
| Database references | |
| SIMBAD | data |
Upsilon Tauri (υ Tauri) is a solitary,light years from the Sun.
Properties
This is an
oblate shape with an equatorial bulge that is 9% larger than the polar radius.[13]
Occasionally this star system shares the Bayer designation υ Tauri with 72 Tauri, which is separated from it by 0.29° in the sky.[14]
Naming
With φ, κ1, κ2 and χ, it composed the Arabic were the Arabs' Al Kalbain, the Two Dogs.[15] According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Kalbain were the title for five stars : φ as Alkalbain I, χ as Alkalbain II, κ1 as Alkalbain III, κ2 as Alkalbain IV and this star (υ) as Alkalbain V.[16]
References
- ^ S2CID 18759600.
- ^ S2CID 125853869.
- ^ S2CID 18475298.
- ^ doi:10.1086/149231.
- S2CID 59451347, A61.
- S2CID 119257644.
- ^ S2CID 33401607.
- ^ S2CID 119097746, 67.
- S2CID 118665352.
- ^ "ups Tau", SIMBAD, Centre de données astronomiques de Strasbourg, retrieved 2017-08-05.
- S2CID 14878976.
- ^ MAST: Barbara A. Mikulski Archive for Space Telescopes, Space Telescope Science Institute, retrieved 8 December 2021.
- S2CID 119273474.
- Bibcode:1991bsc..book.....H.
- Allen, Richard Hinckley(1899), Star-Names and Their Meanings, New York: G. E. Stechert, p. 413
- ^ Rhoads, Jack W. (November 15, 1971), Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars (PDF), Jet Propulsion Laboratory, California Institute of Technology.