Is the constellation shape of astronomy fictional or real?

Finding a specific celestial body is equivalent to going somewhere on the ground. There are roughly two ideas:

1 here is your latitude and longitude, find it yourself. Because the position of the celestial sphere changes periodically, the numbers cannot be used directly, but should be converted. Now that the technology is developed, it can be tracked by GPS. Star Trang has a star guide, similar to GPS, which has now become a mobile phone software.

This practice is completely divorced from the ground reference, a bit like sailing.

Tell you that this place is in a certain community, street, intersection, community, building, door, building.

Generally, you plan to go to a certain area first, then walk along a certain street to a certain station, find a certain intersection, and then ask the local people for directions. He tells you to go straight, turn right at the third building, and then walk 100 meters.

This is according to the landmark.

Until a certain intersection, it is all based on constellation positioning, which is equivalent to finding the first star of a constellation.

The directions are relative, and the target is on the left side of the lower star. This is the so-called star jumping method.

The naming of our country is based on the map of China. In fact, a western constellation may be divided by several different China constellations on the map of China. In practice, Western constellations are still used, and China's name is only used to mark specific stars.