its called the Zenith
The ZENITH .
When the sun is at its highest point in the sky, it is called solar noon. This is when the sun is directly overhead or closest to being directly overhead at that particular location.
Directly overhead.
prime meridian
The point in the sky directly above your head is called the "zenith".Its apparent "distance" from you is completely subjective, and there's no reasonto think of it as being any further from you than any other point in the sky is.
This is due to the amazon being quite close to the Equator, where the sun is almost directly overhead. It is at the March and September Equinoxes that the sun is directly overhead at noon.
The north or south pole.
Never. The Sun can only be directly overhead (90 deg altitude) at latitudes between 23.5 deg N and 23.5 deg S. The Sun is directly overhead at a latitude of 23.5 deg N on the summer solstice. On that day it would be at its highest point in the sky for an observer at 27.947 deg N (about 85.553 deg above S horizon), but it would not be directly overhead.
Well, you're looking at it backwards. The concept of "noon" is man-made. Noon describes that point during the day when the sun is directly (or nearly) overhead. So, to answer your question, the sun is high in the sky at noon because we define "noon" as that time during the day when the sun is high in the sky.
Zenith
The pole star will be directly overhead and all the other stars will go in circles around it.
The opposite of zenith (high point, apex) would be nadir(lowest point).Other possible antonyms would be minimum or bottom.In astronomical terms, the point in the sky that is directly over your head is the 'zenith'. The point in the sky that is directly between your feet and down through the Earth is the 'nadir'.