If light leaves Proxima Centauri in 2020, it will take 4.3 years to reach Earth. Therefore, the light will arrive on Earth in the year 2024.
The light from a star eight light years away will take eight years to reach Earth.
An object that is 8,000 light years away from Earth will take 8,000 years to reach us if it travels at the speed of light. Since nothing can travel faster than light according to our current understanding of physics, this distance would require that same amount of time, 8,000 years, for light (or anything traveling at that speed) to cover the distance to Earth.
Light from the sun because all light travels at the same speed, and the sun is the closest star to the earth, so therefore the light from the sun reaches the earth before light from other (further away) stars
Arcturus is approximately 37 light years away from Earth.
It would take 100 Earth years for a signal to travel from a star located 100 light years away to reach Earth.
If light leaves Proxima Centauri in 2020, it will take 4.3 years to reach Earth. Therefore, the light will arrive on Earth in the year 2024.
The nearest star to Earth in the Scorpius constellation is Antares, which is about 550 light years away. This means that light from Antares takes approximately 550 years to reach Earth.
because they are so far away!!
Traveling at the speed of light, it would take a spacecraft 40 years to reach a star located 40 light-years away from Earth.
The light from a star eight light years away will take eight years to reach Earth.
Easy answer: it would take 72 years.
An object that is 8,000 light years away from Earth will take 8,000 years to reach us if it travels at the speed of light. Since nothing can travel faster than light according to our current understanding of physics, this distance would require that same amount of time, 8,000 years, for light (or anything traveling at that speed) to cover the distance to Earth.
49,666,845 light years away from earth
12.8 billion light years away.
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 ..........
A light-year is the distance light travels in a year. Therefore, if a certain star is "x" light-years from Earth, then it takes light "x" years to get fromthe star to us. Or the other way round.