出典:Wikipedia
出典:『Wikipedia』 (2010/12/16 13:43 UTC 版)
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.