100 light years is the distance that light travels in 100 years, which is about 588 trillion miles.
The distance to a star located 100 light years away from Earth is 100 light years.
A location that is 100 light years away from Earth.
It would take 100 years for a signal to travel from Earth to a star located 100 light years away.
It would take 100 Earth years for a signal to travel from a star located 100 light years away to reach Earth.
A meter is defined to be the distance travelled by light in 1/299,792,458 of a second.
The distance to a star located 100 light years away from Earth is 100 light years.
Years are a measurement of time; light years are a measurement of distance. A light year is the distance light travels in one year (in a vacuum).
The most recent information we can receive about the star would be from about 100 years ago, as it takes light around 100 years to travel a distance of 100 light years from the star to reach us on Earth.
Depends on the distance from us. If it was 100 light years away, it would have occurred 100 years ago.
Well the answer is in the question. A light year is the distance it takes light to travel in one year. If something is a 100 light years away, then it will take light ..........
30.659 parsecs
It would take over 114,000 years to reach the nearest star (Proxima Centauri) traveling at 100 mph. This distance is approximately 4.24 light years away, meaning it would take light over four years to travel them.
A location that is 100 light years away from Earth.
An explosion that occurs 100 light years away can be seen on Earth because light travels at a finite speed, so it takes time for the light from the explosion to reach us. Since the speed of light is finite, any event that occurs in the universe will have a delay in when we see it on Earth, depending on its distance.
600 quadrillion. =================== I get 5.878 x 1017 miles. Is that the same order of magnitude ? ===================Well 1 light year is 9.46*1012 km. So 100000 light is 9.46*1017 km. 1 mile is 1.6 km. Hence 9.46*1017 km is 5.9*1017 miles. So the second contributor is correct.
About 50 to 100 light-years as the closest safe distance between Earth and a supernova. But, if a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions.
Something like 14 billion light years. That's a great distance compared to the length of my kitchen. But we don't know how big it is compared to the size of the whole universe, because we don't know how much farther past that the universe extends.