The Milky Way is 100,000 ly across, so traveling at 1/10 the speed of light that’s 1 million years not 650,000.
Actually it would take much longer because you can not travel through the center of the galaxy.
That means that star travelers will have to travel along the rim to reach us.
33 posted on 04/10/2015 1:37:07 PM PDT by Pontiac
(The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)