What does the phrase light year mean?

Answer 1

a lightyear is a measure of distance that is the distance light will travel in one year.

yes also it can travel in 24 hours

Answer 2

A light year is a measure of distance used by astronomers to measure massive distances. It is officially defined as the total distance light can travel in a year, and is roughly equal to 9.4605284 × 1015 meters.

Answer 3

It means how far light travels in a year.

Distance travelled by a ray of light in 365 days/ 1 year @300,000 km per sec;

Number of sec in a day - 24*60*60= 86400

in an year - 365*86400 = 31,536,000

Distance travelled by light in an year - 31,536,000*300,000 = 9.46 x 1012 km!!

Answer 4

Anything that indicates distance, especially for far-away objects. For example, "The closest star after the Sun is Toliman, at a distance of a little over four light-years from Earth."

Answer 5

A light-year is the distance light travels, in a vacuum, during one year. This is about 10 trillion (10 million million) km.

Answer 6

A light year is the distance that light travels in one year, roughly 9.5 trillion kilometers. It is used as a unit of measurement in astronomy to describe vast distances in outer space.