One light year is the distance that light travels in one Earth year. It is equal to 9.4605284 x 1015 meters or 5.878499811103157 x 1012 miles. Light years are units of measurement critical to starship navigation.
Related Links[]
- Parsec
- Astronomical unit
External links[]
- Light year article at Memory Alpha, the canon Star Trek wiki.
- Light year article at Wikipedia, the free encyclopedia.