The Sagittarius Arm is a major spiral arm of the Milky Way galaxy. It is located between the Scutum-Centaurus Arm and the Perseus Arm. This arm is rich in gas and dust, making it a region of active star formation. The Sagittarius Arm contains several notable features, including the Sagittarius A* supermassive black hole at the center of the Milky Way. It also hosts many star clusters and nebulae, contributing to the galaxy's overall structure and dynamics. The arm plays a crucial role in the distribution of stars and interstellar material within the galaxy.