Asked by: Justin Dopiriak

1 light-year = 63240 AU (astronomical units)

Just for information, 1 light-year is equivalent to the distance travelled by light in 1 year moving in a vacuum. 1 light-year is about 9.4607 * 10

1 astronomical unit (AU) is equivalent to the average radius of the Earth's orbit. 1 AU is about 1.4960 * 10

Simple arithmetic calculation yields the answer that 1 light-year = 63240 AU to a good approximation.

Answered by: Ryan Leong, Undergraduate, NUS, Singapore

'There is no inductive method which could lead to the fundamental concepts of physics. Failure to understand this fact constituted the basic philosophical error of so many investigators of the nineteenth century.'**Albert Einstein**

(*1879-1955*)

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