Bonner Durchmusterung +19°4499

light-years

Catalog numbers:
     Gliese (Gl) 804, Henry Draper Extension (HDE) 352860, Bonner Durchmusterung (BD) +19°4499, Giclas (G) 144-34, Luyten Half-Second (LHS) 3576, Hipparcos Input Catalog (HIC) 102357
Arity: singular
Right Ascension and Declination: 20h44m21.989s, +19°44'59.21" (epoch 2000.0)
Distance from Sol: 65.0 light-years (19.9 parsecs)
Standard error in distance: 3.8145%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 40.2, -46.1, 22.0
Galactic (X,Y,Z) coordinates in ly: 26.9, 56.9, -16.1
Proper motion: 0.56 arcsec/yr (177.7° from north)
Radial Velocity: 3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 34.9, -22.4, -32.9

What do all these fields mean?


Spectral class: M1.5e
Luminosity Class: V
Apparent visual magnitude: +10.29
Absolute visual magnitude: +8.80
Visual luminosity: 0.026 x Sol
Color indices: B-V= +1.45, U-B= +1.15, R-I= +0.75
Comfort Zone (visual): 0.16 A.U.s

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