Cordoba Durchmusterung -37°10765

Catalog numbers:
Gliese (Gl) 618, Cordoba Durchmusterung (CD) -37°10765, Hipparcos Input Catalog (HIC) 80018, New Suspected Variable (NSV) 7625
Arity: binary
Right Ascension and Declination: 16h20m3.44s, -37°31'48.8" (epoch 2000.0)
Distance from Sol: 27.6 light-years (8.47 parsecs)
Standard error in distance: 1.8951%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -9.26, -19.9, -16.8
Galactic (X,Y,Z) coordinates in ly: 26.1, -8.15, 4.03
Proper motion: 1.222 arcsec/yr (324.5° from north)
Radial Velocity: 20 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 14.7, 4.42, 50.7

What do all these fields mean?

Component A:
Catalog numbers:
Luyten Half-Second (LHS) 415
Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +10.60
Absolute visual magnitude: +10.96
Visual luminosity: 0.0036 x Sol
Color indices: B-V= +1.57, U-B= +1.21, R-I= +1.08
Diameter: 0.4 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.060 A.U.s
Angular size of star in sky in CZ: 3.555738 degrees

Component B:
Catalog numbers:
Luyten Half-Second (LHS) 416
Spectral class: M5
Luminosity Class: V-VI
Apparent visual magnitude: +14.15
Absolute visual magnitude: +14.51
Visual luminosity: 0.00014 x Sol
Color indices: B-V= +1.79, R-I= +1.59
Diameter: 0.16 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.012 A.U.s
Angular size of star in sky in CZ: 7.294989 degrees

Data for this star system were most recently updated on 4-April-2001.