Astronomy is the science that deals with the study of celestial bodies , their movements and the phenomena connected with them. His recording and investigation of their origin comes from the information that reaches them through electromagnetic radiation or any other means. Astronomy has been linked to humans since ancient times and all civilizations have had contact with science. People like Aristotle , Thales of Miletus , Anaxagoras , Aristarchus of Samos , Hipparchus , Ptolemy , Hypatia of Alexandria , Nicholas Copernicus , St. Thomas Aquinas , Tycho Brahe , Johannes Kepler , Galileo Galilei , Isaac Newton , Immanuel Kant , Gustav Kirchhoff and Albert Einstein have been some of his growers.
It is one of the few science in which amateurs can still play an active role, especially in the discovery and monitoring of phenomena such as curves light of star variables, discovery of asteroids and comets , etc.
Not to be confused with astronomy with astrology . Although both share a common origin, are very different. Astronomy is a science: the astronomers follow the scientific method . Astrology, which deals with the supposed influence of the stars in the life of men, is a pseudoscience : astrologers, follows a set of unproven beliefs or outright wrong, for example, do not take into account the precession of the equinoxes , a discovery that dates back to Hipparchus .