Sagittarius A*
Sagittarius A* is a bright and very compact astronomical radio source at the Galactic Center of the Milky Way. It is located near the border of the constellations Sagittarius and Scorpius, about 5. 6° south of the ecliptic. Based on mass and increasingly precise radius limits, astronomers have concluded that it is the Milkyway’s central supermassive black hole.
