<PRE><B>Question 1064927</B>
How far, meters, does light travel in 1 year?


{{{(3*10^8)(m/second)3600(second/hour)*24(hour/day)*365.25(days/year)}}}


{{{3*3600*24*365.25*10^8*meters}}}, for ONE year.
About {{{9.46*10^15}}} meters for one year.


Compute that for 1 year, and maybe keep one or two significant figures.
Now, what is 8 times bigger (for your question of 8 light years)?</PRE>