CR Draconis

light-years
Proper names: CR Draconis
Catalog numbers:
     Gliese (Gl) 616.2, Bonner Durchmusterung (BD) +55°1823, Giclas (G) 202-36, Luyten Half-Second (LHS) 5315, Hipparcos Input Catalog (HIC) 79796, Vyssotsky McCormick (McC) 161
Arity: possible spectroscopic binary
Right Ascension and Declination: 16h17m5.592s, +55°16'8.96" (epoch 2000.0)
Distance from Sol: 67.4 light-years (20.7 parsecs)
Standard error in distance: 2.3425%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -16.7, -34.6, 55.4
Galactic (X,Y,Z) coordinates in ly: 4.53, 48.6, 46.5
Proper motion: 0.492 arcsec/yr (157.2° from north)
Radial Velocity: -32.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 45.8, -23.4, -27.3

What do all these fields mean?


Spectral class: M1.5e
Luminosity Class: V
Apparent visual magnitude: +9.80 (increasing to +6.80)
Absolute visual magnitude: +8.22 (increasing to +5.22)
Visual luminosity: 0.045 x Sol (increasing to 0.71 x Sol)
Variable type: UV Ceti flare star (eruptive variable)
Color indices: B-V= +1.48, U-B= +1.08, R-I= +0.90
Comfort Zone (visual): 0.21 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.