How Fast Is Sun Orbiting Galaxy?

Our Sun orbits the Milky Way's centre at 220 km/s — one full 'Galactic Year' takes an enormously long span of time. Earth has only completed roughly 20 of these orbits since the planet first formed; we are creeping along through one slowly.

The Sun has only completed about 20 'galactic years' since it formed — and will only complete around 30 more before the Sun expands and engulfs the inner planets.

• One Galactic Year per orbit
• Earth has done about 20 in total