Redirecting you to https://www.wolframalpha.com/input/?i=%281+solar+luminosity+%2F+%28G*%281+solar+mass%29%5E2+%2F+1+solar+radius%29%29+*+0.004+c++*+%280.5+*+%281e6+years%29%5E2%29++in+lightyears