It would not take any light-years to reach the sun. The sun is much closer than a light year. It is only about 92 million miles or 148 million km away. That works out to roughly 8 light minutes and 20 seconds.
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 ..........
It would take approximately 2.5 million years for a radio signal to travel from Earth to the Andromeda galaxy, which is about 2.5 million light-years away.
When we look at stars, we are seeing the light that they are emitting. That light could have left them many years ago. The light from Betelgeuse takes over 640 years to reach us. So if it exploded today, we would not see that explosion for over 640 years. So it is possible that it is already gone, but the light that left before it went is still coming towards us.
In our Solar System, we see light from our sun reflected off the planets. In more distant galaxies, light from many millions of stars takes a long time to reach the Earth. It takes light 4 years to reach the Earth from Sirius, a near neighbouring star. Using the Hubble telescope, we can see the light from the Eagle Nebula, which takes 7,000 years to reach the Earth.
It takes a light-beam or a radio signal 5,000 years to get there, traveling a straight-line path.If you could travel the same path at a speed of 19,000 miles per second, (1/10th the speed of light),you could make the same trip in only 5 million years. Of course, then you'd be 5,000 light years from home,and it would take 5,000 years just to let the folks back home know that you had arrived safely.No, interstellar travel doesn't seem like a smart place to focus your money and effort.
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Polaris (North Star) is about 433 light years from us, so that is how long light will take to reach us.
I'm afraid you would never reach it. The furthest star, and thus the furthest galaxies are receding faster than the speed of light.
It takes sunlight about 27 years to reach Vega.
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.
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 ..........
It is approximately 1.52207x10^-5 light years. On average it takes just under 8.5 minutes for light to reach the earth from the sun.
Yes ... vision can be faster than light ...because if you are able to see the stars in fraction of seconds, which are billions and trillions of miles away from the earth. the light would take many years to reach it . but your eyesight can reach it in seconds.Chandrashekharfinancexp@gmail.com
It would take approximately 2.5 million years for a radio signal to travel from Earth to the Andromeda galaxy, which is about 2.5 million light-years away.
Many extra-solar planets have been detected, some many light years distant, at our present stage of technology it would take many millions of years to reach them
Light travels at about 300,000 metres per second. The time taken for that light to reach us would depend on the stars distance.
The answer is right there in the words of the question. Radio and light are the same physical phenomenon, and they travel at the same speed. The star is 5 light years away. That means the distance that light ... and radio ... travel in five years. It takes light from the star 5 years to reach us, and it takes radio from us 5 years to reach the star.