How long is a galactic year?

👉The Sun travels around the center of the Milky Way, staying about 26,000 light-years away from the supermassive black hole known as Sagittarius A*. Moving at an incredible speed of roughly 220 kilometers per second, it takes the Sun about 225–250 million Earth years to complete one full trip around the galaxy. Astronomers call this immense span of time a galactic year (or cosmic year). Over its 4.6-billion-year lifetime, the Sun has circled the Milky Way only about 20 times. In fact, when dino

our solar our whole solar system - orbits around the center of the Milky Way Galaxy. We are moving at an average velocity of 828,000 km/hr. But even at that high rate, it still takes us about 230 million years to make one complete orbit around the Milky Way! The Milky Way is a spiral galaxy. We believe that it consists of a central bulge, 4 major arms, and several shorter arm segments. The Sun (and, of course, the rest of our solar system) is located near the Orion arm, between two major arms (P

The Last Galactic Year Has Taken Us From the Jurassic Period to Today