Bonner Durchmusterung +15°2620

light-years

Catalog numbers:
     Gliese (Gl) 526, Henry Draper (HD) 119850, Bonner Durchmusterung (BD) +15°2620, Luyten Half-Second (LHS) 47, Hipparcos Input Catalog (HIC) 67155, Smithsonian Astrophysical Observatory (SAO) 100695, Vyssotsky McCormick (McC) 308, New Suspected Variable (NSV) 6431
Arity: singular
Right Ascension and Declination: 13h45m43.831s, +14°53'27.8" (epoch 2000.0)
Distance from Sol: 17.71 light-years (5.431 parsecs)
Standard error in distance: 0.685%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -15.33, -7.620, 4.552
Galactic (X,Y,Z) coordinates in ly: 5.479, -0.731, 16.83
Proper motion: 2.325 arcsec/yr (129.8° from north)
Radial Velocity: 16.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 61.86, -1.969, -3.271

What do all these fields mean?


Spectral class: M1.5n
Luminosity Class: V
Apparent visual magnitude: +8.46
Absolute visual magnitude: +9.79
Visual luminosity: 0.0106 x Sol
Variable type: UV Ceti flare star (eruptive variable)
Color indices: B-V= +1.44, U-B= +1.09, R-I= +0.86
Diameter: 0.689 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.103 A.U.s
Angular size of star in sky in CZ: 3.571524 degrees

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