Meaning of Astronomy

What is Astronomy:

What astronomy is called the science that is in charge of studying everything related to the stars, their movements and the laws that govern them. The word, as such, comes from the Latin astronomyand this in turn from the Greek ἀστρονομία.

Astronomy studies the celestial bodies of the universe, from the planets and their satellites, through comets and asteroids, to the systems of interstellar matter, dark matter, stars, gas, and dust that we know as galaxies. As such, It is the science of the physical universe and the phenomena that occur in it..

branches of astronomy are the astrophysics, which studies the characteristics of celestial bodies; the position astronomy, which measures and determines the position of the stars; the celestial mechanics, which focuses on the movement of the stars; and the cosmologywhich theorizes about the formation and evolution of the universe.

See also Cosmology.

Astronomy has been part of the history of humanity since ancient times. Civilizations such as the Aztec, Maya and Inca, as well as the Egyptian, Chinese and Greek reached such a degree of knowledge that they are considered fundamental for the subsequent evolution of the discipline. In this sense, it is considered the oldest science, and it has been essential in the development of other scientific disciplines, such as mathematics or physics.

In its beginnings, astronomy had a practical application to know the cycles of the stars and to establish measurements of time that would make it possible to determine, among other things, the propitious moment for planting and harvesting.

Some of the most important astronomers in history have been Claudius Ptolemy, Nicolás Copernicus, Johannes Kepler and Galileo Galilei.

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astronomy and astrology

Although astronomy and astrology in their beginnings were terms that could be used as synonyms, today they designate well-differentiated disciplines.

At present, the astronomy It has developed as a scientific discipline that deals with the study of the stars, their movement and the laws that govern them, while the astrology It was maintained over time as a system of beliefs and superstitions related to the influence attributed to the movement of the stars on the character of people and historical events.

Both sciences were separating and differentiating from the Renaissance, thanks to the predominance of rationalist thought.