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by Ciro Santilli (@cirosantilli, 37)

Light year (ly)

 ... Physics System of units List of systems of units International System of Units Dimension of the International System of Units Length
 1 By others on same topic  0 Discussions  Updated 2025-07-01  +Created 1970-01-01  See my version
Tags: Astronomical measurement unit

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 Articles by others on the same topic (1)

Light-year by Wikipedia Bot 0  1970-01-01
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A light-year is a unit of distance that represents how far light travels in one year in the vacuum of space. Since light moves at a speed of about 299,792 kilometers per second (or approximately 186,282 miles per second), a light-year is equivalent to about 9.46 trillion kilometers (or about 5.88 trillion miles).
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