List of constellations
The sky was divided into constellations by ancient astronomers. The ancients imagined clusters of stars in shapes similar to animals, birds, and other shapes, and they named them after the shape they imagined or used the names of their gods and heroes of their myths. They were named after Greek, Latin, Arabic, and Greek names, but it is difficult to determine the reason for naming each constellation. Of the zodiac signs specifically and how their names were chosen. Every civilization had a name for each form, and most of them are as old as humanity. In addition, there is a connection between the names of the zodiac signs and the four seasons. The ancients may have used them as a calendar method that informed them of the seasons and seasons, such as harvest seasons, rain dates, and others. He points out Some historians suggest that the inhabitants of the Tigris and Euphrates around 3000 BC were the first to give most of the names of the stellar constellations. Western astrologers still rely in their astrology on the ancient dates of the sun’s passage through the zodiac, which is based on the apparent entry of the sun into Aries on March 21, the vernal equinox.
Modern constellations
Although the constellations have no scientific meaning, they provide a useful reference point in the sky for human beings, including astronomers. In 1930, the boundaries of these constellations were determined by Eugène-Joseph Delport, and adopted by the International Astronomical Union, so that now each point On the celestial sphere, they belong to a specific constellation. The number of modern constellations today, as classified by scientists, is 88 constellations covering all the visible stars in the sky. The International Union of Astronomy has approved the names of these constellations in Latin, and scientists give names to the stars of those constellations using Latin letters, so the brightest is the letter Alpha, then beta, gamma, and so on
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