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`"light hour" = 1.079x10^9 km `

1.0792298E+9

A **Light Hour** (1,079,229,797 km) is the distance light travels in one hour.

One Light Hour is equal to:

- 1,079,229,797 kilometers
- 670,602,305 miles
- 7.214 astronomical units (ua)
- 0.00011 light years

The Speed of Light is 299,792,458.0 meter per second. Using that velocity, one can compute the distance light has traveled in a period of time.

This unit is often used in astronomy calculations is a simple linear transform.