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QUESTION
How many light years away is the sun?
1.5812 E-05 ly
In light seconds (ls), Earth-Sun distance 1 AU is 499.005 ls. The IAU definition 1 AU = 149597870.7 km. Light speed is 299792.452 km/s. 1 year is 365.256 X 24 X 60 X 60 seconds, nearly.
