Distamce
Explanation: A light-ycar is a unit of length equal to just under 10 trillion kilometres (or about 6 trillion miles). As defined by the International Astronomical Union (TAU), a light-year is the distance that light travels in a vacuum in one Julian year. Note that the licht- year is a measure of distance (rather than, as is sometimes misunderstood, a measure of time).
Distamce
Explanation: A light-ycar is a unit of length equal to just under 10 trillion kilometres (or about 6 trillion miles). As defined by the International Astronomical Union (TAU), a light-year is the distance that light travels in a vacuum in one Julian year. Note that the licht- year is a measure of distance (rather than, as is sometimes misunderstood, a measure of time).