At $627 ext{ km/s}$, approximately how long would it take the Milky Way to travel a distance equal to its own diameter?

Answer

150 million years

Traveling a distance equivalent to its own diameter (about 100,000 light-years) at the CMB velocity of $627 ext{ km/s}$ would take approximately 150 million years.

At $627 	ext{ km/s}$, approximately how long would it take the Milky Way to travel a distance equal to its own diameter?
astronomyspeedvelocitycosmologygalaxy cluster