How are the constellations in the sky named?

About 3000 or 4000 years ago, the Babylonians used brighter stars in the sky to form constellations. According to research, 48 constellations were founded by Babylonians in ancient times, and later Greek astronomers named them, some named them after animals, and some named them after characters in Greek mythology.

Before the Zhou Dynasty, China also named the stars in the sky and divided the sky into stars, which later evolved into three walls and twenty-eight houses.

1928 the international astronomical union scientifically re-divided the celestial sphere into 88 constellations according to the right ascension circle and the right declination circle. About half of them are named after animals, such as Ursa Major and Cygnus. A quarter of them are named after characters in Greek mythology, such as Cassiopeia and Andromeda, and the rest are named after objects, such as microscope stands and clock stands. Although the ancient method of dividing constellations was not scientific, many names of constellations are still in use today.