Nu Tauri

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ν Tauri
Taurus constellation map.svg
Red circle.svg
Location of ν Tauri (circled)
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]
Spectral type A0.5Va[3]
U−B color index +0.06[4]
B−V color index +0.03[4]
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[1] mas
Distance116.9 ± 0.8 ly
(35.9 ± 0.2 pc)
Absolute magnitude (MV)1.14[2]
Mass2.25[6] M
Radius2.3[7] R
Luminosity34[6] L
Surface gravity (log g)4.02[8] cgs
Temperature9,016[6] K
Metallicity [Fe/H]-0.22[2] dex
Rotational velocity (v sin i)83[6] km/s
Other designations
38 Tauri, BD+05°581, FK5 151, GC 4862, GSC 00079-01585, HIP 18907, HR 1251, HD 25490, SAO 111579, WDS J04032+0559A
Database references

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]


  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971Freely accessible. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.  Vizier catalog entry
  3. ^ 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/0603770Freely accessible. Bibcode:2006AJ....132..161G. doi:10.1086/504637. 
  4. ^ 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
  5. ^ Wilson, R. E. (1953). General Catalogue of Stellar Radial Velocities. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336. 
  6. ^ a b c d e Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052Freely accessible. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691.  Vizier catalog entry
  7. ^ 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/9911002Freely accessible. Bibcode:1999A&A...352..555A.  Vizier catalog entry
  8. ^ 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:1501.03154Freely accessible. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146.  Vizier catalog entry
  9. ^ 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[edit]