Bonner Durchmusterung -17°6768

Catalog numbers:
Gliese (Gl) 897, Bonner Durchmusterung (BD) -17°6768, Giclas (G) 273-67, Hipparcos Input Catalog (HIC) 116191
Arity: binary
Points of interest:
This binary pair may in turn be orbiting Gliese 898.

Right Ascension and Declination: 23h32m46.68s, -16°45'11.4" (epoch 2000.0)
Distance from Sol: 42 light-years (13 parsecs)
Standard error in distance: 10.4046%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 40, -4.8, -12
Galactic (X,Y,Z) coordinates in ly: 7.3, 13, -39
Proper motion: 0.4 arcsec/yr (126.0° from north)
Radial Velocity: -1.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -11, -21, -6.8

What do all these fields mean?

Data for A and B's orbit around one other:
Combined spectrum: M3.5 V
Combined absolute visual magnitude: +9.85
Combined visual luminosity: 0.01 x Sol
Observed Separation: 6.5 A.U.s
Year of separation observation: 1934
As seen from A:
B would appear as magnitude -16.68
As seen from B:
A would appear as magnitude -17.13

Data for A and B's orbit, take 2:
Observed Separation: 2.6 A.U.s
Year of separation observation: 1962
As seen from A:
B would appear as magnitude -18.67
As seen from B:
A would appear as magnitude -19.12

Component A:
Apparent visual magnitude: +10.95
Absolute visual magnitude: +10.40
Visual luminosity: 0.006 x Sol
Comfort Zone (visual): 0.08 A.U.s

Component B:
Apparent visual magnitude: +11.40
Absolute visual magnitude: +10.85
Visual luminosity: 0.004 x Sol
Comfort Zone (visual): 0.06 A.U.s

Data for this star system were most recently updated on 4-April-2001.