Tau Sagittarii is a binary star system located in the constellation of Sagittarius. It is approximately 140 light-years away from Earth and consists of two stars that orbit each other. The primary star is a yellow giant, while the secondary star is a smaller, less luminous companion. The system is notable for its brightness, with an apparent magnitude of around 3.5, making it visible to the naked eye. Tau Sagittarii is part of the Milky Way galaxy and contributes to the rich tapestry of stars in the Sagittarius constellation, which is known for its numerous deep-sky objects.