Megalight

A megalight, abbreviated MGLT, was a standard unit of distance in space.

The T-65 X-wing starfighter and TIE/LN starfighter had top sublight speeds of 100 MGLT per hour.

The superlaser targeting system of the Death Star I used megalights to indicate the distance to planets to be fired upon.

Text and facts from the “Megalight” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.