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It takes 4.3 light years for the light from a neighboring star to reach the earth. How many meters is it from the earth?
1 light year is the distance of light propagation in one year, 1 light year = 94607304725800m
3 light years = 40681141032097440m
Therefore, the distance between the adjacent star and the earth is 40681141032097440 meters
The speed of light is about 300000 km / h, how many km per light year?
Direct answer (scientific counting)
300000 km / s, wrong number, and scientific counting method
9.46 * 10 ^ 12 km
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