Noun
the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
Source: WordNetlight-year
A proper motion of 1 arcsec per year at a distance of 1 light-year corresponds to a relative transverse speed of 1.45 km/s. Source: Internet
At this point the Jovis, which has a maximum warp factor of 3 has had a 23-hour head start, which the Enterprise-D figures puts her anywhere within a 0.102 light year radius of her last known position. Source: Internet
The astronomical unit is too small to be convenient for interstellar distances, where the parsec and light year are widely used. Source: Internet
Standard hyperdrive covers a distance of one light-year every three days (121.75 x c). Source: Internet
Closest approach will happen in about 4,000 years, when the star will be a few hundredths of a light year closer to Earth than it is today. Source: Internet
In round figures, a light year is nearly 10 trillion kilometres or nearly 6 trillion miles. Source: Internet