Bonner Durchmusterung +70°639

light-years

Catalog numbers:
     Gliese (Gl) 406.1, Bonner Durchmusterung (BD) +70°639, Giclas (G) 236-46, Luyten Half-Second (LHS) 2334, Hipparcos Input Catalog (HIC) 53580, Smithsonian Astrophysical Observatory (SAO) 15345, Vyssotsky McCormick (McC) 34, Luyten Two-Tenth (LTT) 12927
Arity: singular
Right Ascension and Declination: 10h57m38.037s, +69°35'47.89" (epoch 2000.0)
Distance from Sol: 75.1 light-years (23.0 parsecs)
Standard error in distance: 3.2308%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -25.2, 7.04, 70.4
Galactic (X,Y,Z) coordinates in ly: -38.5, 36.8, 52.9
Proper motion: 0.638 arcsec/yr (275.3° from north)
Radial Velocity: 7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -63.2, -12.2, -27.5

What do all these fields mean?


Spectral class: M0.5
Luminosity Class: V
Apparent visual magnitude: +10.28
Absolute visual magnitude: +8.47
Visual luminosity: 0.036 x Sol
Color indices: B-V= +1.40, U-B= +1.35, R-I= +0.65
Comfort Zone (visual): 0.19 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.