Bonner Durchmusterung +26°465

light-years

Catalog numbers:
     Gliese (Gl) 113, Henry Draper (HD) 17382, Bonner Durchmusterung (BD) +26°465, Giclas (G) 36-33, Hipparcos Input Catalog (HIC) 13081, Smithsonian Astrophysical Observatory (SAO) 75580, AGK3 Reference (AGK3R) 2447
Arity: binary
Right Ascension and Declination: 2h48m9.17s, +27°4'7.1" (epoch 2000.0)
Distance from Sol: 73.0 light-years (22.4 parsecs)
Standard error in distance: 2.5076%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 48.2, 43.5, 33.2
Galactic (X,Y,Z) coordinates in ly: -57.3, 28.9, -34.8
Proper motion: 0.304 arcsec/yr (115.7° from north)
Radial Velocity: 11.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -24.2, -23.8, -3.11

What do all these fields mean?

Data for AB and C's orbit around one other:
Combined absolute visual magnitude: +5.86
Combined visual luminosity: 0.39 x Sol
Observed Separation: 447 A.U.s
As seen from AB:
     C would appear as magnitude -3.57
As seen from C:
     AB would appear as magnitude -12.46


Component AB:
NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: K1e
Luminosity Class: V
Apparent visual magnitude: +7.61
Absolute visual magnitude: +5.86
Visual luminosity: 0.39 x Sol
Color indices: B-V= +0.83, U-B= +0.43
Diameter: 0.76 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.63 A.U.s
Angular size of star in sky in CZ: 0.645722 degrees


Component C:
Catalog numbers:
     Luyten Palomar (LP) 354-414
Right Ascension and Declination: 2h45m12s, +26°52'0" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 48.9, 43.0, 33.0
Galactic (X,Y,Z) coordinates in ly: -56.7, 29.3, -35.3
Proper motion: 0.296 arcsec/yr (112.0° from north)
Radial Velocity: 11.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -24.7, -22.3, -1.78
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +16.50
Absolute visual magnitude: +14.75
Visual luminosity: 0.00011 x Sol
Comfort Zone (visual): 0.010 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.