Bonner Durchmusterung +60°1003

light-years

Catalog numbers:
     Gliese (Gl) 247, Henry Draper (HD) 48948, Bonner Durchmusterung (BD) +60°1003, Giclas (G) 250-22, Luyten Half-Second (LHS) 6, Hipparcos Input Catalog (HIC) 32769, Smithsonian Astrophysical Observatory (SAO) 13971, Vyssotsky McCormick (McC) 479
Arity: singular
Right Ascension and Declination: 6h49m56.867s, +60°20'8.21" (epoch 2000.0)
Distance from Sol: 53.5 light-years (16.4 parsecs)
Standard error in distance: 2.088%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -5.73, 25.9, 46.5
Galactic (X,Y,Z) coordinates in ly: -44.7, 20.1, 21.5
Proper motion: 0.476 arcsec/yr (29.1° from north)
Radial Velocity: -52.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 64.5, 0.44, 2.00

What do all these fields mean?


Spectral class: M0p
Luminosity Class: V
Apparent visual magnitude: +8.59
Absolute visual magnitude: +7.52
Visual luminosity: 0.086 x Sol
Color indices: B-V= +1.22, U-B= +1.17, R-I= +0.48
Diameter: 1.13 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.29 A.U.s
Angular size of star in sky in CZ: 2.052717 degrees

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