Bonner Durchmusterung +154733

light-years

Catalog numbers:
     Gliese (Gl) 880, Henry Draper (HD) 216899, Bonner Durchmusterung (BD) +154733, Luyten Half-Second (LHS) 533, Hipparcos Input Catalog (HIC) 113296, Smithsonian Astrophysical Observatory (SAO) 108272, Vyssotsky McCormick (McC) 854, AGK3 Reference (AGK3R) 20537
Arity: singular
Right Ascension and Declination: 22h56m34.805s, +16°33'12.16" (epoch 2000.0)
Distance from Sol: 22.45 light-years (6.884 parsecs)
Standard error in distance: 0.8328%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 20.70, -5.880, 6.397
Galactic (X,Y,Z) coordinates in ly: 0.647, 17.61, -13.91
Proper motion: 1.071 arcsec/yr (254.8° from north)
Radial Velocity: -27.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 32.83, -16.79, 25.31

What do all these fields mean?


NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: M1.5
Luminosity Class: V
Apparent visual magnitude: +8.68
Absolute visual magnitude: +9.49
Visual luminosity: 0.0140 x Sol
Color indices: B-V= +1.50, U-B= +1.18, R-I= +0.88
Diameter: 0.540 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.118 A.U.s
Angular size of star in sky in CZ: 2.434958 degrees

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