Mu Aquarii
Mu Aquarii, Latinized from μ Aquarii, is the Bayer designation for a binary star system in the equatorial constellation of Aquarius. It is visible to the naked eye with a combined apparent visual magnitude of 4.7. Based upon parallax measurements, the distance to this system is about. Mu Aquarii is a spectroscopic binary with an orbital period of 1,566 days and an eccentricity of 0.23. The combined spectrum matches a stellar classification of A3m, with the 'm' suffix indicating that this is an Am, or chemically peculiar star.
This star together with ν Aquarii is Albulaan, derived from an Arabic term al-bulaʽān meaning "the two swallowers". This star, along with ε Aqr and ν Aqr, were al Bulaʽ, the Swallower. In Chinese, 女宿, meaning Girl , refers to an asterism consisting of μ Aquarii, ε Aquarii, 4 Aquarii, 5 Aquarii and 3 Aquarii. Consequently, the Chinese name for μ Aquarii itself is 女宿二
