Alpha Octantis

Alpha Octantis is a binary star system in the constellation of Octans. The name is Latinized from α Octantis. Despite being labeled the "alpha" star by Johann Bayer in his star atlas "Uranometria", it is not the brightest star in the constellation – that title belongs to Nu Octantis. It is visible to the naked eye as a faint, yellow-white hued point of light with an overall apparent visual magnitude of approximately 5.13. The system is located approximately 148 light years away from the Sun based on parallax,
This is a double-lined spectroscopic binary star which consists of two similar giant stars, each with spectral type F, orbiting each other with a period of just over 9 days and an eccentricity of 0.39. The pair form a Beta Lyrae-type eclipsing binary system, dropping by magnitude 0.04 during the primary eclipse. This system is a bright X-ray source with a luminosity of . The system displays an infrared excess suggesting the presence of two debris disks; the first has a temperature of 450 K and is orbiting at a distance of from its host star, while the second is a much cooler 40 K and orbits 187.8 AU from the system.