Galactic year
The galactic year, also known as a cosmic year, is the length of time needed for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is 230 million Earth years.  The Solar System is traveling at an average speed of 230 km/s (828,000 km/h) within its arc-like path around the galactic center, a speed at which an object could travel around the Earth's equator in 2 minutes and 54 seconds; that speed goes along with about 1/1300 of the speed of light.