Nu Tauri
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 03m 09.37966s[1] |
| Declination | 5° 59′ 21.4792″[1] |
| Apparent magnitude (V) | 3.91[2] |
| Characteristics | |
| Spectral type | A0.5Va[3] |
| U−B color index | +0.06[4] |
| B−V color index | +0.03[4] |
| Astrometry | |
| Radial velocity (Rv) | -5.70[5] km/s |
| Proper motion (μ) | RA: +4.72[1] mas/yr Dec.: -3.78[1] mas/yr |
| Parallax (π) | 27.89 ± 0.19 mas[1] |
| Distance | 116.9 ± 0.8 ly (35.9 ± 0.2 pc) |
| Absolute magnitude (MV) | 1.14[2] |
| Details | |
| Mass | 2.25[6] M☉ |
| Radius | 2.3[7] R☉ |
| Luminosity | 34[6] L☉ |
| Surface gravity (log g) | 4.02[8] cgs |
| Temperature | 9,016[6] K |
| Metallicity [Fe/H] | -0.22[2] dex |
| Rotational velocity (v sin i) | 83[6] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Nu Tauri (ν Tau, ν Tauri) is a star in the constellation Taurus. Nu Tauri is a white A-type main sequence dwarf[3] with an apparent magnitude of +3.91.[2] It is approximately 117 light years from Earth.[1] This star is 2.2 times the mass of the Sun, more than double the Sun's radius, and is radiating roughly 34 times the Sun's luminosity.[6][7]
It is reported as a binary with a companion at magnitude 9.21 and separation 15.9".[9]
References
- ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
- ^ a b Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132: 161. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637.
- ^ a b Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
- ^ Wilson, R. E. (1953). General Catalogue of Stellar Radial Velocities. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336.
- ^ a b c d e Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. Vizier catalog entry
- ^ a b Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. Vizier catalog entry
- ^ David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. Vizier catalog entry
- ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
External links
- "HD 25490 -- Star". SIMBAD Astronomical Database. Retrieved 2007-04-10.
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