Famous Speed Of Light Milky Way Galaxy References. Web the solar system is traveling at an average speed of 230 km/s (828,000 km/h) or 143 mi/s (514,000 mph) within its trajectory around the galactic center, [3] a speed at which an object could circumnavigate the earth's equator in 2 minutes and 54 seconds; Web our sun and solar system move at about about 500,000 miles an hour (800,000 km/hr) in this huge orbit.
Web the star birth and movement the team observed indicate that galaxies like the milky way are expanding at about 1,100 mph (1,770 km/h) — 1.4 times the speed of sound at sea level here on. If we could travel outside our galaxy and look back, this is what our milky way galaxy might look like from above. (spiral galaxies and other types of galaxies are described in the article galaxy.)this structure can be viewed as consisting of six separate parts:
