Bonner Durchmusterung -7°3856

light-years

Catalog numbers:
     Gliese (Gl) 553, Henry Draper (HD) 127339, Bonner Durchmusterung (BD) -7°3856, Giclas (G) 124-47, Luyten Half-Second (LHS) 374, Hipparcos Input Catalog (HIC) 70956, Smithsonian Astrophysical Observatory (SAO) 139977, Vyssotsky McCormick (McC) 719
Arity: singular
Right Ascension and Declination: 14h30m47.8s, -8°38'45.8" (epoch 2000.0)
Distance from Sol: 53.9 light-years (16.5 parsecs)
Standard error in distance: 2.5282%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -42.2, -32.6, -8.10
Galactic (X,Y,Z) coordinates in ly: 35.2, -12.1, 39.0
Proper motion: 1.283 arcsec/yr (259.9° from north)
Radial Velocity: -26.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -74.9, -71.7, 8.21

What do all these fields mean?


Spectral class: K7
Luminosity Class: V
Apparent visual magnitude: +9.40
Absolute visual magnitude: +8.31
Visual luminosity: 0.041 x Sol
Color indices: B-V= +1.40, U-B= +1.22, R-I= +0.66
Diameter: 0.69 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.20 A.U.s
Angular size of star in sky in CZ: 1.811637 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.