Bonner Durchmusterung -7°5871

light-years

Catalog numbers:
     Gliese (Gl) 875, Henry Draper (HD) 216133, Bonner Durchmusterung (BD) -7°5871, Hipparcos Input Catalog (HIC) 112774, Vyssotsky McCormick (McC) 210
Arity: singular
Right Ascension and Declination: 22h50m19.424s, -7°5'24.34" (epoch 2000.0)
Distance from Sol: 45.7 light-years (14.0 parsecs)
Standard error in distance: 2.5113%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 43.2, -13.6, -5.64
Galactic (X,Y,Z) coordinates in ly: 11.7, 23.2, -37.5
Proper motion: 0.152 arcsec/yr (316.8° from north)
Radial Velocity: -5.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 1.08, 5.03, 10.4

What do all these fields mean?


Spectral class: M1e
Luminosity Class: V
Apparent visual magnitude: +9.86
Absolute visual magnitude: +9.13
Visual luminosity: 0.019 x Sol
Color indices: B-V= +1.48, U-B= +1.24, R-I= +0.73
Diameter: 0.6 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.14 A.U.s
Angular size of star in sky in CZ: 2.295575 degrees

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