text: Sagittarius A* was determined to be the center of the Milky Way, about 26,000 light years from our Solar System. We know the center is a Black Hole from observations of nearby suns in very fast orbits around it, showing high gravitational attraction. In 1999, knowing that Sagittarius A* was the center of the Milky Way Galaxy allowed astronomer Mark Reid and associates at the Harvard-Smithsonian Center for Astrophysics to calculate that our Solar System takes approximately 226 million years to revolve around the Galactic Center.