Bonner Durchmusterung -21°784

light-years

Catalog numbers:
     Gliese (Gl) 160.2, Bonner Durchmusterung (BD) -21°784, Luyten Half-Second (LHS) 1628, Hipparcos Input Catalog (HIC) 19165, Smithsonian Astrophysical Observatory (SAO) 169128
Arity: singular
Right Ascension and Declination: 4h6m34.814s, -20°51'10.83" (epoch 2000.0)
Distance from Sol: 76.7 light-years (23.5 parsecs)
Standard error in distance: 3.7121%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 34.0, 63.1, -27.3
Galactic (X,Y,Z) coordinates in ly: -44.1, -32.0, -54.0
Proper motion: 0.77 arcsec/yr (177.2° from north)
Radial Velocity: 28 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 45.5, -69.1, -36.1

What do all these fields mean?


Spectral class: M0
Luminosity Class: V
Apparent visual magnitude: +9.70
Absolute visual magnitude: +7.84
Visual luminosity: 0.063 x Sol
Color indices: B-V= +1.22, U-B= +1.14, R-I= +0.48
Comfort Zone (visual): 0.25 A.U.s

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