Home • About • FAQs • News • Random Expert Selector • Random Question Selector • Contact Us • 

Top Level >

Space & Astronomy

How many years in 1 light year?

Discuss this question
Discuss Answer


A light year is measure of distance. Not time.

It is the distance that light travels in a vacuum in one Julian year (Western calendar).

It is much easier to deal in light years than it is to calculate multiples of five trillion, eight hundred seventy-eight billion, six hundred thirty million (5,878,630,000,000) miles.

Mr Craig Brownell
(Expert Rating 8713)
   Member has an expert rating of 5000+
Discuss Answer

Light year is not a unit of time. It is a unit of distance and could be expressed in kilometers or miles or something like that. One light year is the distance travelled by light in one year at the speed of 300 000 km/second.

Mr Joseph Vempeny India
(Expert Rating 2831)
   Member has an expert rating of 2000+
 Top of Page Terms and Conditions Privacy Disclaimer

© Simply Explained