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Omicron2 Eridani

A triple system of a yellow-orange star (A), a small white dwarf (B) and a red dwarf, which is a flare star.

Constellation: Eridanus
Distance: 16.45 light-years
Radial velocity: -42.7 km/sec
Space between Omikron2 Eridani A and B/C: 417.7 AU
Orbit period of Omikron2 Eridani A and B/C: circa 8000 years
Space between Omikron2 Eridani B and C: 35 AU
Orbit period of Omikron2 Eridani B and C: 252 years

Omicron2 Eridani A

Spectral class: K1
Visual magnitude: 4.43
Luminosity: 0.376 * Sun
Mass: 0.75 * Sun
Diameter: 1.063 * Sun
 

Omicron2 Eridani B

Spectral class: DA4
Visual magnitude: 9.52
Luminosity: 0.00345 * Sun
Mass: 0.44 * Sun
Diameter: 0.019 * Sun
 

Omicron2 Eridani C

Spectral class: M4.5
Visual magnitude: 11.17
Luminosity: 0.000754 * Sun
Mass: 0.15 * Sun
Diameter: 0.28 * Sun

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    Omicron2 Eridani
Photo: ESO Online Digitized Sky Survey

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