A light year (ly) is a unit of distance defined as the distance light travels in one year. Numerically, 1 ly= 9 500 000 000 000 km. How many metres are in a light year?
Distance in Space Light years. - ppt download
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A light year is the distance that light can travel in one year. 1 light year = 9,460,000,000,000km. a Express one light year in scientific notation. b The average distance between
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What is a light-year?
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SOLVED: A light-year is the distance that light travels in one year: The speed of light is 3.00 x 108 m/s How many miles are there in one light-year? (1 mi =
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