Saved Bookmarks
| 1. |
Dimension of light year |
|
Answer» tion:Light-year, in astronomy, the DISTANCE traveled by light moving in a vacuum in the course of ONE year, at its accepted velocity of 299,792,458 metres per SECOND (186,282 miles per second). A light-year EQUALS about 9.46073 × 1012 km (5.87863 × 1012 miles), or 63,241 astronomical units. |
|