What is a constellation? What is a constellation?

Constellation refers to a group of similar stars projected on the celestial sphere. Different civilizations and historical periods may divide constellations differently. Most modern constellations evolved from the traditional constellations of ancient Greece, and the International Astronomical Union accurately divided the whole day into 88 constellations.

In order to identify the stars easily, people divided several regions according to their natural distribution in the sky. Different sizes. Each region is called a constellation. Connect the bright stars in the same constellation with lines to form various figures. In shape, they are similar to animals and utensils. There are nearly 6,000 stars visible to the naked eye, each of which can be classified as a unique constellation. Each constellation can be identified by the shape of the bright star inside. 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. Constellations play an important role in astronomy; Astrology also uses the image of the zodiac, but it does not use real scientific methods. Astrology is generally regarded as pseudoscience.