Bonner Durchmusterung +40°3005

light-years

Catalog numbers:
     Woolley (Wo) 9557, Henry Draper (HD) 147365, Bonner Durchmusterung (BD) +40°3005, Hipparcos Input Catalog (HIC) 80008, Smithsonian Astrophysical Observatory (SAO) 65233, FK5 Extension (FK5 Ext) 3293, Hoffleit Bright Star (HR) 6091
Arity: binary
Right Ascension and Declination: 16h19m55.138s, +39°42'31.21" (epoch 2000.0)
Distance from Sol: 87.5 light-years (26.8 parsecs)
Standard error in distance: 1.3753%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -28.5, -61.0, 55.9
Galactic (X,Y,Z) coordinates in ly: 28.1, 55.0, 61.9
Proper motion: 0.137 arcsec/yr (270.8° from north)
Radial Velocity: -29 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -14.9, -29.2, -8.22

What do all these fields mean?


Component A:
Spectral class: F3
Luminosity Class: V
Apparent visual magnitude: +5.46
Absolute visual magnitude: +3.32
Visual luminosity: 4.10 x Sol
Color indices: B-V= +0.40, U-B= -0.08
Diameter: 1.11 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.02 A.U.s
Angular size of star in sky in CZ: 0.292225 degrees


Component B:
Spectral class: M0
Luminosity Class: V
Apparent visual magnitude: +11.00
Absolute visual magnitude: +8.86
Visual luminosity: 0.025 x Sol
Diameter: 0.63 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.16 A.U.s
Angular size of star in sky in CZ: 2.127109 degrees

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