Rigel system

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Rigel system lights up the Witch Head Nebula.

This trinary star system, also known as Beta Orionis, is a system of a blue supergiant star and two bluish white main sequence stars. The two very similar whites are close together, but far away from the bigger blue one. The stars light up a reflection nebula known as the Witch Head Nebula, IC 2118.

Overview

Primary: Rigel A

Secondary: Rigel B
Tertiary: Rigel C

Orbit period of Rigel B and C: 9.85992 days