vale6maIlsea vale6maIlsea

19-04-2016
Physics

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A light-year is a unit of

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savchave7928 savchave7928

19-04-2016

A unit of length used to express astronomical distances.

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19-04-2016

A light-year is a unit of length or distance.
It's defined as the distance that light (or any electromagnetic
wave) travels through vacuum in one Earth-year.

==> about 9,460,730,000,000,000 meters

==> about 5,878,620,000,000 miles

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