If the distances were in light years, they would be small numbers. The sun is 8.3 light minutes away.
You have given a good reason. Metric units are prefered in all sciences, finally.
Distances to planets are also often meaured in astronomical units (a.u.). One a.u. is the average distance from earth to the sun, 150 million km).
Y r the distances to the planets given in km? I've already answered the 2nd part to this question, and this is the fist part.
I think that the distances to the planets are given in kilometres because all the planets aren't that far away from eachother that they need to be measured in light years.
Please correct me if I'm wrong, thanks
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