Bonner Durchmusterung -4°3665

Catalog numbers:
Gliese (Gl) 544, Henry Draper (HD) 125455, Bonner Durchmusterung (BD) -4°3665, Giclas (G) 124-24, Hipparcos Input Catalog (HIC) 70016, Smithsonian Astrophysical Observatory (SAO) 139867, UGPMF 345, FK5 Extension (FK5 Ext) 5266
Arity: binary
Right Ascension and Declination: 14h19m34.87s, -5°9'4.7" (epoch 2000.0)
Distance from Sol: 67.8 light-years (20.8 parsecs)
Standard error in distance: 2.2547%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -55.4, -38.6, -6.09
Galactic (X,Y,Z) coordinates in ly: 40.4, -14.4, 52.5
Proper motion: 0.643 arcsec/yr (258.5° from north)
Radial Velocity: -9.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -42.0, -47.7, 7.45

What do all these fields mean?

Component A:
Catalog numbers:
Luyten Half-Second (LHS) 2894
Spectral class: K1
Luminosity Class: V
Apparent visual magnitude: +7.58
Absolute visual magnitude: +5.99
Visual luminosity: 0.35 x Sol
Color indices: B-V= +0.84, U-B= +0.52, R-I= +0.30
Diameter: 0.83 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.59 A.U.s
Angular size of star in sky in CZ: 0.748915 degrees

Component B:
Catalog numbers:
Luyten Half-Second (LHS) 2895
Spectral class: M6
Luminosity Class: V
Apparent visual magnitude: +15.10
Absolute visual magnitude: +13.51
Visual luminosity: 0.00034 x Sol
Color indices: R-I= +1.30
Diameter: 0.25 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.019 A.U.s
Angular size of star in sky in CZ: 7.197281 degrees

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