Why are the twelve constellations updated?

Because of the change of the earth's axis, the movement of the solar system and the movement of the stars themselves, the position of the zodiac is very different from that of 2000 years ago. The correct date after the change is as follows. Let's compare and see what constellation you are now. Sheep: 04/ 19-05/ 13 Taurus: 05/ 14-06/22 Gemini: 06/23-07/2 1 Cancer: 07/22-/kloc-. -6543830- 12/ 17 Sagittarius:12/18-019 Capricorn: 01/20-. The original giant scorpion needs to be reorganized, only from 1 1 24th to1/29th. What constellation are you? Do you know that the constellation you belong to is just above the route (ecliptic) that the sun must pass through in the sky (* * * has twelve constellations), so it is collectively called the zodiac? The sun was in your constellation when you were born? But this was more than two thousand years ago! More than two thousand years have passed, and the dates of the twelve constellations are no longer consistent with the astronomical phenomena. As the earth's axis oscillates in a period of 26,000 years, the position of the ecliptic in the sky changes accordingly. In this way, every two thousand years, the time for the sun to reach a certain palace will be delayed by about one month. In addition, the zodiac now spans not only the twelve constellations, but also the thirteenth Ophiuchus. Using the attached pictures, you can find out the difference between the constellations that the sun passes through on your birthday and the traditional constellations.