Homework Help

What is a light-year?

user profile pic

demon300 | Student, Grade 10 | Valedictorian

Posted January 21, 2013 at 4:22 PM via web

dislike 0 like

What is a light-year?

2 Answers | Add Yours

user profile pic

wordprof | College Teacher | (Level 3) Senior Educator

Posted January 21, 2013 at 4:45 PM (Answer #1)

dislike 1 like

A light-year is a measure of distance, not time.  It is the distance that light travels in a year; approximately 186,000 miles x 60 (seconds) x 60 (minutes) x 24 (hours) x 365 (days).  It is used to measure astronomical distances, as between stars, galaxies, etc. 

user profile pic

wescarlyon337 | Student , Grade 10 | Salutatorian

Posted January 22, 2013 at 8:59 PM (Answer #2)

dislike 0 like

it is the distance that light travels in a year; remember it's a measure of distance.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes