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Mercury Is 0.000131 lightyears away from earth
8
It is around 640 lightyears away.
I can't give you the answer in kilometres, but Wolf 359 is 7.78 lightyears from Earth
The nearest star to Earth is the sun, at a distance of 0.000016 light years from Earth. The next nearest star, Proxima Centauri, is about 4.2 light years away.
Mercury Is 0.000131 lightyears away from earth
8
It is around 640 lightyears away.
I can't give you the answer in kilometres, but Wolf 359 is 7.78 lightyears from Earth
Light travels 186,282.4 miles per second in the vacuum of space. At that speed, it takes the light from the sun about 8 minutes and 18 seconds to reach Earth.
In terms of the speed of light, the distance between the Earth and Sun is81/3 light minutes,or about 0.00001585 light-year.
Zeta Reticuli is approximately 39 lightyears away, it takes about 234 years to reach the system.
Sunlight is constantly touching the earth's surface. It never stops. (we hope)
The speed of light is 186,000 miles per second or 300,000 kilometers per second. It takes sunlight about 13 minutes to reach Mars. It takes about 81/2 minutes to reach Earth.
With the average distance or "mean" distance from the Earth to the sun set at approximately 93,000,000 miles, and the speed of light at about 186,000 miles per second; the time in seconds it takes sunlight to reach the earth is appoximately "500 seconds". Most people refer to the time in minutes which would be about 8.333333 minutes.
The nearest star to Earth is the sun, at a distance of 0.000016 light years from Earth. The next nearest star, Proxima Centauri, is about 4.2 light years away.
Earth gets 24 hours of sunlight each day. There is always 50% of the Earth illuminated by the sun.