Eta Orionis

Eta Orionis (η Ori / η Orionis) is a star in the constellation Orion. It is also known as one of Saiph, Algjebbah, or Ensis (Latin for "sword", since the star is taken to represent Orion's sheathed weapon).

It is a star system at a distance of 900 light years from Earth and part of the Orion Arm. Eta Orionis lies a little to the west of Orion's belt between Delta Orionis and Rigel, being closer to Delta Orionis than to Rigel. It is an eclipsing binary system consisting of two blue stars orbiting one another in a regular pattern.

See also

• Orion's Sword

Notes