Lambda Sagittarii (Latinized from ? Sagittarii), formally named Kaus Borealis /‘k??s b?ri’�l?s/, is a star in the southern constellation of Sagittarius. The star marks the top of the Archer’s bow.
Based upon parallax measurements, it [Lambda Sagittarii] is 78.2 light-years (24.0 parsecs) from the Sun.
It [Lambda Sagittarii] has a mass 1.8 times that of the Sun and a physical size of about 11.2 times the Sun’s radius.
