Bonner Durchmusterung +45°2688

light-years

Catalog numbers:
     Gliese (Gl) 709, Bonner Durchmusterung (BD) +45°2688, Giclas (G) 204-55, Hipparcos Input Catalog (HIC) 89560, Vyssotsky McCormick (McC) 801
Arity: singular
Right Ascension and Declination: 18h16m31.076s, +45°33'27.73" (epoch 2000.0)
Distance from Sol: 55.8 light-years (17.1 parsecs)
Standard error in distance: 1.863%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 2.81, -39.0, 39.8
Galactic (X,Y,Z) coordinates in ly: 14.6, 48.6, 23.2
Proper motion: 0.3 arcsec/yr (354.0° from north)
Radial Velocity: -36.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -32.4, -29.0, -7.46

What do all these fields mean?


Spectral class: M0
Luminosity Class: V
Apparent visual magnitude: +10.32
Absolute visual magnitude: +9.15
Visual luminosity: 0.019 x Sol
Color indices: B-V= +1.47, U-B= +1.20, R-I= +0.75
Comfort Zone (visual): 0.14 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.