Light year

From TinWiki.org

A light-year is the distance that light travels in one year in a vacuum. While there is no universally accepted standard of which systems year is used, the most widely held year is the Julian one, which is 365.25 days.


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Distances Involved

  • One light year is 9,460,730,472,580.8 km.
  • One light year is 5,878,625,373,183.61 miles
  • One light year is 63,241 *AU
  • One light year is 0.3066 parsecs

* An AU (Astronomical Unit) is equivelant to the mean distance between the Earth and the Sun.


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Speed Of Light

The established physical constant for the speed of light is 186,282.397 miles per second in a complete vacuum.


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Also On tinWiki


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ATS Discussion Threads


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External Sources

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