Bonner Durchmusterung +17°2611

light-years

Catalog numbers:
     Gliese (Gl) 505, Henry Draper (HD) 115404, Bonner Durchmusterung (BD) +17°2611, Giclas (G) 63-18, Hipparcos Input Catalog (HIC) 64797, Smithsonian Astrophysical Observatory (SAO) 100491, Aitken Double Star (ADS) 8841
Arity: binary
Right Ascension and Declination: 13h16m50.996s, +17°1'1.92" (epoch 2000.0)
Distance from Sol: 36.6 light-years (11.2 parsecs)
Standard error in distance: 1.0993%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -33.1, -11.5, 10.7
Galactic (X,Y,Z) coordinates in ly: 7.10, -3.12, 35.8
Proper motion: 0.658 arcsec/yr (113.3° from north)
Radial Velocity: 6.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 34.9, 7.18, 0.56

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +6.27
Combined visual luminosity: 0.27 x Sol
Observed Separation: 14.6 A.U.s
Year of separation observation: 1881
As seen from A:
     B would appear as magnitude -16.40
As seen from B:
     A would appear as magnitude -19.41

Data for A and B's orbit, take 2:
Observed Separation: 71.9 A.U.s
Year of separation observation: 1959
As seen from A:
     B would appear as magnitude -12.94
As seen from B:
     A would appear as magnitude -15.95


Component A:
Catalog numbers:
     Luyten Half-Second (LHS) 2713
Spectral class: K1
Luminosity Class: V
Apparent visual magnitude: +6.59
Absolute visual magnitude: +6.34
Visual luminosity: 0.25 x Sol
Color indices: R-I= +0.35
Diameter: 0.82 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.50 A.U.s
Angular size of star in sky in CZ: 0.867717 degrees


Component B:
Catalog numbers:
     Luyten Half-Second (LHS) 2714
Proper motion: 0.658 arcsec/yr (113.3° from north)
Radial Velocity: 9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 35.4, 6.98, 2.81
Spectral class: M1
Luminosity Class: V
Apparent visual magnitude: +9.60
Absolute visual magnitude: +9.35
Visual luminosity: 0.016 x Sol
Diameter: 0.59 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.13 A.U.s
Angular size of star in sky in CZ: 2.497156 degrees

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