Lambda Sagittarii , formally named Kaus Borealis /ˈkɔːs bɒriˈælɪs/, is a star in the southern constellation of Sagittarius. The star marks the top of the Archer's bow.
Upsilon Sagittarii is a spectroscopic binary star system in the constellation Sagittarius. Upsilon Sagittarii is the prototypical hydrogen-deficient binary , and one of only four such systems known. The unusual...
RY Sagittarii is a yellow supergiant and an R Coronae Borealis type variable star in the constellation Sagittarius. Although it ostensibly has the spectrum of a G-type star, it differs...
