Tags: Star.
Alpha Octantis (Alpha Oct α Octantis α Oct) is a star in the constellation of Octans. It has an overall apparent visual magnitude of approximately 5.15 and is a spectroscopic binary star which consists of two giant stars each with spectral type F orbiting each other with a period of just over 9 days. The pair has also been classified as a Beta Lyrae-type eclipsing binary system.