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AnonymAug 29, 2013

Can you explain "Light year"?

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    Aug 29, 2013

    According to the International Astronomical Union (IAU) "light-year is the distance that light travels in one year" In numerical term 1 light year = 9.4605284 × 1015 meters OR 1 light year = 5.878625 trillion miles

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    AnonymAug 29, 2013

    it is a unit of measurment of light. The diffrence between two planets maesured by this

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