Bonner Durchmusterung +33°1814

light-years

Catalog numbers:
     Gliese (Gl) 336, Bonner Durchmusterung (BD) +33°1814, Luyten Half-Second (LHS) 2113, Hipparcos Input Catalog (HIC) 44955, Vyssotsky McCormick (McC) 540, Couteau (COU) 1561
Arity: singular
Right Ascension and Declination: 9h9m30.627s, +32°49'10.37" (epoch 2000.0)
Distance from Sol: 69.0 light-years (21.2 parsecs)
Standard error in distance: 5.7838%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -42.7, 39.3, 37.4
Galactic (X,Y,Z) coordinates in ly: -49.5, -10.9, 46.9
Proper motion: 0.639 arcsec/yr (210.3° from north)
Radial Velocity: 9.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -23.1, -56.2, -22.9

What do all these fields mean?


Spectral class: M2
Luminosity Class: V
Apparent visual magnitude: +9.96
Absolute visual magnitude: +8.33
Visual luminosity: 0.041 x Sol
Color indices: B-V= +1.39, U-B= +1.23, R-I= +0.71
Comfort Zone (visual): 0.20 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.