I just wasnt sure if it can be calculated in calender years.
2007-11-01 00:46:12 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
A light-year is a measurement of Distance, not Time.
It is equal to the Distance light waves will travel given an Earth year of time to travel.
Time is relative. There is no such thing as an absolute calculation of time on an astronomical scale.
2007-11-01 00:56:24 · answer #1 · answered by chocolahoma 7 · 1⤊ 0⤋
Yes, the distance is such that traveling at the speed of light it would take 1.8 million years to get there.
2007-11-01 00:58:04 · answer #2 · answered by cyswxman 7 · 0⤊ 0⤋
It is already a measure of time. 1.8 million years! A light year is a measure of how far light travels in 1 year. Multiply the speed of light times 1.8 million and you have the distance that light would travel in that time.
2007-11-01 00:56:40 · answer #3 · answered by Peter D 2 · 0⤊ 0⤋
For us, it is 1.8 million years, but if you could somehow ask the light that is actually doing the travelling, no time has passed at all.
2007-11-01 01:00:12 · answer #4 · answered by SteveA8 6 · 0⤊ 0⤋
Light-year is the unit of distance. Generally the distances from the stars are measured in LY. One light year is the distance travelled by light in one year
2007-11-01 01:29:04 · answer #5 · answered by Joymash 6 · 0⤊ 0⤋
Light years aren't units of time, they're units of distance. One light year is the distance light travels in one year, or about 5.88 trillion miles.
2007-11-01 00:57:58 · answer #6 · answered by Anonymous · 1⤊ 0⤋
um i would say that its 1.8 million years. which is about 6 billion 57 million 450000 days :)
2007-11-01 00:57:38 · answer #7 · answered by What! 2 · 0⤊ 0⤋