Epsilon Reticuli Ab

Epsilon Reticuli b

Epsilon Reticuli b, sometimes designated Epsilon Reticuli Ab to distinguish from the white dwarf companion of the primary star Epsilon Reticuli, also known as HD 27442, was discovered on December 16, 2000 by the Anglo-Australian Planet Search Team using the highly successful radial velocity method. The planet's mass is at least 56% greater than Jupiter, a more accurate estimate requiring its inclination to be known.

The planet orbits its parent star relatively close, and with more than twice the eccentricity of Earth's orbit. The planet is certainly a gas giant and although this does not preclude life as we may or not know it, the planet still receives more than 16 times the heat Earth receives at Perihelion, and this factor is what dissolves hope of it having life, in the planet's atmosphere or in any massive moons (which cannot be detected with current technology) that the planet may have within its Hill sphere radius.

Basic Insolation Figures Chart

! Planet Distance

Insolation (W/m2) % of Earth's.
Mars' Aphelion Flux 493.335 36.11%
Mars' Average Flux 588.947 43.11%
Mars' Perihelion Flux 717.577 52.53%
Earth's Aphelion Flux 1,323.444 96.88%
Earth's Average Flux 1,366.079 100.00%
Earth's Perihelion Flux 1,414.936 103.58%
Venus' Aphelion Flux 2,581.885 189.00%
Venus' Average Flux 2,613.359 191.30%
Venus' Perihelion Flux 2,653.077 194.21%
Epsilon Reticuli b Aphelion Flux 17,059.045 1248.76%
Epsilon Reticuli b Average Flux 19,502.849[1] 1427.65%
Epsilon Reticuli b Perihelion Flux 22,581.687 1653.03%

[1] ((1.2 × 6.955e8 m)2 (5.67051e-8) (4749°K)4) / (1.271×149597876600)2 = 19,502.849 W/m2


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