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  • 21-08-2014
  • Physics
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What is the meaning of lightyear?

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AL2006
AL2006 AL2006
  • 21-08-2014
"Lightyear" is a distance ... specifically, the distance that light travels
through vacuum in one year of 365 days.

It's equivalent to  9.454 x 10^12 kilometers, or  5.875 x 10^12 miles . 
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