39 Tauri

light-years
Proper names: 39 Tauri
Catalog numbers:
     Gliese (Gl) 160, Henry Draper (HD) 25680, Bonner Durchmusterung (BD) +21°587, Hipparcos Input Catalog (HIC) 19076, Smithsonian Astrophysical Observatory (SAO) 76438, Hoffleit Bright Star (HR) 1262, New Suspected Variable (NSV) 1452
Age: 500 million years
Source for age: Don C. Barry, "Chromospheric Age Dependence of…", APJ 334
Arity: singular
Right Ascension and Declination: 4h5m20.23s, +22°0'30.1" (epoch 2000.0)
Distance from Sol: 54.6 light-years (16.7 parsecs)
Standard error in distance: 1.3855%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 24.3, 44.4, 20.4
Galactic (X,Y,Z) coordinates in ly: -50.2, 7.19, -20.0
Proper motion: 0.222 arcsec/yr (129.0° from north)
Radial Velocity: 23.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -25.3, -14.0, -6.73

What do all these fields mean?


Spectral class: G5
Luminosity Class: V
Apparent visual magnitude: +5.90
Absolute visual magnitude: +4.79
Visual luminosity: 1.06 x Sol
Color indices: B-V= +0.62
Diameter: 0.94 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.03 A.U.s
Angular size of star in sky in CZ: 0.486601 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.