Want to know the knowledge about the constellation (not the relationship between the constellation and people's personality and fortune, but the knowledge of the position and shape of the constellatio

Want to know the knowledge about the constellation (not the relationship between the constellation and people's personality and fortune, but the knowledge of the position and shape of the constellation in the sky) -

Constellations are 88 regions that divide the night sky when humans observe the universe. Because of the revolution of the earth, the night sky you see will be different all year round. For example, you see a constellation on a certain day, but its position in the night sky changes little by little because of the revolution of the earth. Some constellations can be seen all year round, and some constellations can't be seen for a while, which is of course related to the observer's position. Galaxy refers to the whole celestial system in the universe that can be composed of stars, nebulae, planets and other substances, such as the Milky Way. Often say

Taurus Crab Nebula means Taurus Crab Nebula. This area is a deep area. Give an inappropriate example. Your window is divided into four pieces. 1234. You stand by and be careful. People don't move There is a bike outside the first glass and a tree in the distance. Then it can be said that bicycles and trees are located in 1 glass (1 glass is also a constellation, bicycles.

The above is my own understanding. I wonder if you can understand it.