Bonner Durchmusterung +32°3326
Catalog numbers:
Gliese (Gl) 747, Bonner Durchmusterung (BD) +32°3326, Giclas (G) 207-16, Luyten Half-Second (LHS) 471, Hipparcos Input Catalog (HIC) 93917, Smithsonian Astrophysical Observatory (SAO) 67835, Aitken Double Star (ADS) 12061C, Catalogue Astrographique (AC) +32°54804
Arity: binary
Right Ascension and Declination: 19h7m25.604s, +32°30'6.18" (epoch 2000.0)
Distance from Sol: 26.6 light-years (8.16 parsecs)
Standard error in distance: 1.5261%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 6.51, -21.5, 14.3
Galactic (X,Y,Z) coordinates in ly: 11.4, 23.5, 4.98
Proper motion: 1.635 arcsec/yr (48.9° from north)
Radial Velocity: -47 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -70.4, -12.0, -33.2
What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +11.69
Combined visual luminosity: 0.0018 x Sol
Observed Separation: 2.45 A.U.s
Source for orbit data: Gliese
As seen from A:
B would appear as magnitude -17.03
As seen from B:
A would appear as magnitude -17.33
Component A:
Spectral class: M3.5
Luminosity Class: V-VI
Apparent visual magnitude: +11.86
Absolute visual magnitude: +12.30
Visual luminosity: 0.0010 x Sol
Comfort Zone (visual): 0.032 A.U.s
Component B:
Spectral class: M5
Luminosity Class: V-VI
Apparent visual magnitude: +12.16
Absolute visual magnitude: +12.60
Visual luminosity: 0.00079 x Sol
Comfort Zone (visual): 0.028 A.U.s
Data for this star system were most recently updated on 4-April-2001.