EZ Aquarii

Proper names: EZ Aquarii
Catalog numbers:
Gliese (Gl) 866, Giclas (G) 156-31, Luyten Half-Second (LHS) 68, Luyten (L) 789-6
Arity: binary
Points of interest:
At least one of this pair is a possible flare star.

Right Ascension and Declination: 22h35m45s, -15°35'36" (epoch 1950.0)
Distance from Sol: 11.1 light-years (3.40 parsecs)
Standard error in distance: 1.1753%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 9.96, -3.84, -2.98
Galactic (X,Y,Z) coordinates in ly: 4.12, 4.42, -9.29
Proper motion: 3.254 arcsec/yr (46.6° from north)
Radial Velocity: -60 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -68.6, -1.34, 40.5

What do all these fields mean?

Data for A and B's orbit around one other:
Combined spectrum: M5e V
Combined absolute visual magnitude: +14.64
Combined visual luminosity: 0.00012 x Sol
Period: 2.2 years
Semimajor Axis: 1.22 A.U.s
As seen from A:
B would appear as magnitude -15.12
As seen from B:
A would appear as magnitude -16.13

Component A:
Apparent visual magnitude: +12.66
Absolute visual magnitude: +15.00
Visual luminosity: 0.000087 x Sol
Diameter: 0.35 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.0093 A.U.s
Angular size of star in sky in CZ: 20.276569 degrees

Component B:
Apparent visual magnitude: +13.67
Absolute visual magnitude: +16.01
Visual luminosity: 0.000034 x Sol
Comfort Zone (visual): 0.0058 A.U.s

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