Orbital
Distance

(a=AUs)
Orbital
Period

(P=years)
Orbital
Eccentricity

(e)
Orbital
Inclination

(i=degrees)

Mass

(Solar)

Diameter

(Solar)

Density

(Earths)
Surface
Gravity

(Earths)

Metallicity
(Solar)
AB Mass Center0.0........................
CD-32 8179 A6.8741??0.870.84.........
Center of H.Z. A0.560.450?...............
CD-32 8179 B73.7741??0.080.15.........
Center of H.Z. B0.00870.00210?...............


NOTE: This animation attempts to relate the possible orbits of CD-32 8179 AB (and their tiny habitable zones) to their common center of mass. Although the initial display shows the system's orbital tilt at an inclination of 0 from the visual perspective of an observer on Earth, the orbital inclination of any planet that may be discovered someday around either star would likely be different from those of the habitable zone orbits depicted here.

Star A has an average separation of about 80.5 AUs from its binary companion "B" -- a semi-major axis of 16.2" at a HIPPARCOS distance estimate of 31.1 ly (Poveda et al, 1994, pp. 68-69). Given the estimated masses of 0.87 Solar for Star A and 0.08 Solar for Star B, their orbital period may last some 741 years. (See an animation of the orbits of Stars A and B and their potentially habitable zones, with a table of basic orbital and physical characteristics.)


 

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