How Far Can Humans See
By how it works team 27 04 2012.
How far can humans see. It means keeping a certain distance away from other people to lessen the. If you stand on the beach your eyes are probably between 5 and 6 feet above the sandy beach depending on your height. On the top of mt everest you could theoretically see for 339 kilometres 211 miles but in practice cloud gets in the way. Social distancing remains a key part of the uk s strategy for keeping people safe and preventing the spread of covid 19.
The absolute farthest object we can see with our naked eye is outside of our galaxy. Then you can see about 8 37 miles across the ocean. This is the farthest object humans can see with the naked eye thanks to the vast amount of light coming from its burning stars. There are billions of galaxies the most distant of which are so far away that the light arriving from them on earth today set out from the galaxies billions of years ago.
In actuality we can see for 46 billion light years in all directions for a total diameter of 92 billion light years. That s pretty far for being the farthest object we can spot. How does the eye process images. From there you can see about 2 7 miles across the ocean.
Dust water vapour and pollution in the air will rarely let you see more than 20 kilometres 12 miles even on a clear day. Now let s say you go up on a sand dune next to the beach taking your eyeballs 50 feet into the air. Often the curvature of the earth gets in the way first eg at sea level the horizon is only 4 8 kilometres 2 9 miles away. With today s technology to would take 94 5 billion earth years for humans to travel to its edge.
The andromeda galaxy located 2 5 million light years from us or a cool 23 quintillion miles. The deeper we see into space the more galaxies we discover. Depending on how you look at it the human eye can see 2 miles or more than 2 million light years.