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The speed of light is 300000 kilometers per second. How many kilometers are there in a light year?
300000X3600X24X365=9460800000000
Light travels 300000 kilometers per second, and light years are the distance light travels in a year
In astronomy, light years (that is, the distance light passes through in a year) are commonly used as the unit of length to measure the distance between celestial bodies. Please calculate how many kilometers is a light year? Vega is about 2.6 × 10 12 km away from the earth=________ Light years
274.82 light years
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