light hour

ریشه

The term 'light' refers to the speed of light, and 'hour' refers to a unit of time. The term 'light hour' was coined to describe the distance light can travel in one hour.

مثال

• The spacecraft was millions of light hours away from Earth.
• The distance between the two galaxies was measured in light hours.
• It would take several light hours for a radio signal to reach the distant planet.

ترکیب‌های رایج

Millions of light hours Distance in light hours Several light hours