What is another word for light hour?
Pronunciation: [lˈa͡ɪt ˈa͡ʊ͡ə] (IPA) 
The term "light hour" refers to the distance that light travels in one hour. However, there are several alternative terms that can be used to describe this distance. One popular synonym for light hour is "light-time distance." This term reflects the fact that the distance is measured in units of time rather than space. Another alternative is "lunar distance," which represents the distance that light travels between the Earth and the moon. For astronomical purposes, the term "astronomical unit" (AU) is commonly used to describe distances within our solar system, with one AU equaling 8.32 light-minutes or 499 light-seconds. Other synonyms for light hour may include "cosmic distance" or "optic distance".
