Bonner Durchmusterung +18°3497

light-years

Catalog numbers:
     Gliese (Gl) 698, Bonner Durchmusterung (BD) +18°3497, Hipparcos Input Catalog (HIC) 87768, Smithsonian Astrophysical Observatory (SAO) 103221, Vyssotsky McCormick (McC) 798
Arity: singular
Right Ascension and Declination: 17h55m44.913s, +18°30'1.81" (epoch 2000.0)
Distance from Sol: 75.2 light-years (23.0 parsecs)
Standard error in distance: 4.8454%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -1.32, -71.3, 23.8
Galactic (X,Y,Z) coordinates in ly: 50.7, 49.2, 25.5
Proper motion: 0.065 arcsec/yr (228.4° from north)
Radial Velocity: -28.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -15.7, -24.2, -6.95

What do all these fields mean?


Spectral class: K8
Luminosity Class: V
Apparent visual magnitude: +9.22
Absolute visual magnitude: +7.41
Visual luminosity: 0.095 x Sol
Color indices: B-V= +1.18, U-B= +1.16, R-I= +0.48
Comfort Zone (visual): 0.31 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.