Bonner Durchmusterung -5°642

light-years

Catalog numbers:
     Gliese (Gl) 141, Henry Draper (HD) 21197, Bonner Durchmusterung (BD) -5°642 , Luyten Half-Second (LHS) 1546 , Hipparcos Input Catalog (HIC) 15919, Smithsonian Astrophysical Observatory (SAO) 130471, UGPMF 53, Southern Reference System (SRS) 5066
Arity: singular
Right Ascension and Declination: 3h24m59.747s, -5°21'49.55" (epoch 2000.0)
Distance from Sol: 49.3 light-years (15.1 parsecs)
Standard error in distance: 1.4158%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 30.7, 38.3, -4.61
Galactic (X,Y,Z) coordinates in ly: -33.2, -5.54, -36.0
Proper motion: 0.802 arcsec/yr (196.8° from north)
Radial Velocity: -13.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 47.6, -28.0, -21.0

What do all these fields mean?


Spectral class: K5
Luminosity Class: V
Apparent visual magnitude: +7.86
Absolute visual magnitude: +6.97
Visual luminosity: 0.14 x Sol
Color indices: B-V= +1.16
Diameter: 0.77 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.38 A.U.s
Angular size of star in sky in CZ: 1.087575 degrees

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