Wolfram Alpha excels in that type of questions: http://www.wolframalpha.com/input/?i=distance+pluto+%2F+lightspeed http://www.wolframalpha.com/input/?i=distanc

Wolfram Alpha excels in that type of questions: http://www.wolframalpha.com/input/?i=distance+pluto+%2F+lightspeed http://www.wolframalpha.com/input/?i=distance+pluto+%2F+ligh... http://www.wolframalpha.com/input/?i=distance+voyager+1+%2F+lightspeed http://www.wolframalpha.com/input/?i=distance+voyager+1+%2F+... P.S. You are correct.