Wolf 635

light-years

Catalog numbers:
     Gliese (Gl) 653, Henry Draper (HD) 154363, Bonner Durchmusterung (BD) -4°4225, Luyten Half-Second (LHS) 431, Hipparcos Input Catalog (HIC) 83591, Smithsonian Astrophysical Observatory (SAO) 141508, Vyssotsky McCormick (McC) 787A, FK5 Extension (FK5 Ext) 5505, Wolf 635, Luyten FT (LFT) 1316
Arity: singular
Right Ascension and Declination: 17h5m3.41s, -5°4'0.2" (epoch 2000.0)
Distance from Sol: 35.1 light-years (10.8 parsecs)
Standard error in distance: 1.1061%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -8.30, -33.9, -3.10
Galactic (X,Y,Z) coordinates in ly: 31.7, 8.89, 12.2
Proper motion: 1.471 arcsec/yr (218.5° from north)
Radial Velocity: 34.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 48.0, -63.9, 20.2

What do all these fields mean?


Spectral class: K5
Luminosity Class: V
Apparent visual magnitude: +7.70
Absolute visual magnitude: +7.54
Visual luminosity: 0.084 x Sol
Color indices: B-V= +1.16, U-B= +1.06, R-I= +0.49
Diameter: 0.73 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.29 A.U.s
Angular size of star in sky in CZ: 1.345726 degrees

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