Bonner Durchmusterung -17°3088

light-years

Catalog numbers:
     Gliese (Gl) 383, Bonner Durchmusterung (BD) -17°3088, Luyten Half-Second (LHS) 2231, Hipparcos Input Catalog (HIC) 49973, Vyssotsky McCormick (McC) 570
Arity: singular
Right Ascension and Declination: 10h12m8.16s, -18°37'2.2" (epoch 2000.0)
Distance from Sol: 55.7 light-years (17.1 parsecs)
Standard error in distance: 2.7552%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -47.0, 23.9, -17.8
Galactic (X,Y,Z) coordinates in ly: -9.12, -47.2, 28.1
Proper motion: 0.525 arcsec/yr (270.1° from north)
Radial Velocity: -1.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -34.1, -6.08, -24.7

What do all these fields mean?


Spectral class: K7
Luminosity Class: V
Apparent visual magnitude: +9.93
Absolute visual magnitude: +8.77
Visual luminosity: 0.027 x Sol
Color indices: B-V= +1.48, U-B= +1.23, R-I= +0.71
Mass: 0.36 x Sol
Diameter: 0.65 x Sol
Comfort Zone (visual): 0.16 A.U.s
Orbital period in CZ: 40.6674 days
Tidal index in CZ: 80.6654
Angular size of star in sky in CZ: 2.104712 degrees

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