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Mark 2
1 light year = 9.46073 x 10^18mm
Distance Sun to Proxima Centauri = 4.2 light years =4.2 X 9.46073 x 10^18mm
=3.97350 X 10^19mm
Scale 5 cent coin to Sun's diameter (in mm)= 19.41/1.391X10^12= 1.395X 10^-11.
Distance at this scale= 3.97350 X 10^19 X 1.395 X 10^-11
= 5.54304 X 10^8 mm
= 5.54304 X 10^2 km
= 554 km.
About 500 km.
Regards
Steven
Last edited by sjastro; 10-12-2011 at 06:02 PM.
Reason: Corrected for wrong conversion factor
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