What are constellations made of?

Basically, dividing stars into constellations is a random process. Different civilizations have different constellations made up of different stars-although some constellations made up of more conspicuous stars are roughly the same in different civilizations, such as Orion and Scorpio. The International Astronomical Union divides the sky into 88 official constellations with precise boundaries, so that every star in the sky belongs to a specific constellation. Most of these official constellations are based on the ancient Greek traditional constellations handed down from the Middle Ages. Constellation plays an important role in astronomy, and astrology also uses the image of the zodiac. However, if astrology does not use real scientific methods, it will generally be considered as pseudoscience.

There is such a translation in the English-Chinese dictionary: "Zodiac" is the same free translation as the English-Chinese astronomical vocabulary; In Ying Ying's dictionary, it is explained in more detail: "One twentieth of the ecliptic" means "12 of the ecliptic". Therefore, the twelve constellations in astronomical calendar and astrology are different in practical sense.