Bonner Durchmusterung +37°748

light-years

Catalog numbers:
     Gliese (Gl) 134, Henry Draper Extension (HDE) 275122, Bonner Durchmusterung (BD) +37°748 , Luyten Half-Second (LHS) 1528 , Hipparcos Input Catalog (HIC) 15366, Vyssotsky McCormick (McC) 100
Arity: singular
Right Ascension and Declination: 3h18m7.523s, +38°15'7.03" (epoch 2000.0)
Distance from Sol: 56.5 light-years (17.3 parsecs)
Standard error in distance: 3.6537%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 28.8, 33.7, 35.0
Galactic (X,Y,Z) coordinates in ly: -48.3, 25.0, -15.2
Proper motion: 0.772 arcsec/yr (141.2° from north)
Radial Velocity: -3.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -20.2, -57.7, -17.1

What do all these fields mean?


Spectral class: M1.5e
Luminosity Class: V
Apparent visual magnitude: +10.29
Absolute visual magnitude: +9.10
Visual luminosity: 0.020 x Sol
Color indices: B-V= +1.48
Diameter: 0.58 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: 2.188967 degrees

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