Nu Tauri

Nu Tauri
Location of ν Tauri (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 03m 09.37966s[1]
Declination +05° 59′ 21.4792″[1]
Apparent magnitude (V) 3.91[2]
Characteristics
Evolutionary stage main sequence[3]
Spectral type A0.5Va[4]
U−B color index +0.06[5]
B−V color index +0.03[5]
Astrometry
Radial velocity (Rv)−5.7±0.9[6] 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]
Distance116.9 ± 0.8 ly
(35.9 ± 0.2 pc)
Absolute magnitude (MV)1.14[2]
Details
Mass2.25±0.01[3] M☉
Radius2.87+0.16
−0.31[7] R☉
Luminosity28.1±0.4[7] L☉
Surface gravity (log g)4.02[8] cgs
Temperature7,836+464
−203[7] K
Metallicity [Fe/H]−0.19±0.08[9] dex
Rotational velocity (v sin i)83[3] km/s
Age206[8] Myr
Other designations
ν Ser, 38 Tauri, BD+05°581, FK5 151, GC 4862, HD 25490, HIP 18907, HR 1251, SAO 111579, WDS J04032+0559A, GSC 00079-01585[10]
Database references
SIMBADdata

ν Tauri, Latinized as Nu Tauri, is a single[11] star in the zodiac constellation of Taurus. It is a white-hued star and is visible to the naked eye with an apparent visual magnitude of +3.91.[2] This object is located 117 light years from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −6 km/s.[6] It is predicted to come to within roughly 18.4 ly of the Sun in around five million years.[12]

This object is an A-type main-sequence star with a stellar classification of A0.5Va.[4] It is 206[8] million years old and is rotating with a projected rotational velocity of 83 km/s.[3] The star has 2.25[3] times the mass of the Sun and 2.87[7] times the Sun's radius. It is radiating 28 times the luminosity of the Sun from its photosphere at an effective temperature of 7,836 K.[7]

Nu Tauri has a magnitude 9.21 visual companion at an angular separation 15.9″.[13]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference XHIP was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Mallama2014 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Wilson1953 was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference David2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference gaspar2016 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference BailerJones2015 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference WDS was invoked but never defined (see the help page).