/kloc-how far can you see with 0/0 times vision in normal weather?

It depends on the resolution of your eyes. For example, if your eyes are protected, you can see the sun, which means that the visual distance is one hundred and fifty million kilometers, and the caterpillar can only see it within a few meters ... For people, you can see clearly at 50 meters, and you can choose to aim at your head or knees, and a point is one kilometer away ... How far can optical equipment see? .. I have answered questions about sights, telescopes, night vision devices and thermal cameras.