Bonner Durchmusterung -0°632

light-years

Catalog numbers:
     Gliese (Gl) 159, Henry Draper (HD) 25457, Bonner Durchmusterung (BD) -0°632, Hipparcos Input Catalog (HIC) 18859, Smithsonian Astrophysical Observatory (SAO) 130893, Hoffleit Bright Star (HR) 1249
Arity: singular
Right Ascension and Declination: 4h2m36.719s, +0°16'8.03" (epoch 2000.0)
Distance from Sol: 62.7 light-years (19.2 parsecs)
Standard error in distance: 1.4218%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 30.7, 54.7, 0.29
Galactic (X,Y,Z) coordinates in ly: -49.9, -9.26, -36.8
Proper motion: 0.288 arcsec/yr (150.3° from north)
Radial Velocity: 17.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -7.95, -28.1, -12.3

What do all these fields mean?


Spectral class: F6
Luminosity Class: V
Apparent visual magnitude: +5.37
Absolute visual magnitude: +3.95
Visual luminosity: 2.29 x Sol
Color indices: B-V= +0.50
Diameter: 1.24 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.51 A.U.s
Angular size of star in sky in CZ: 0.436984 degrees

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