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The Astrology Portal


Introduction

Detail from the astronomical clock of the Piazza San Marco, Venice.

Astrology is the study of the movements and relative positions of celestial objects as a means for divining information about human affairs and terrestrial events. Astrology has been dated to at least the 2nd millennium BCE, and has its roots in calendrical systems used to predict seasonal shifts and to interpret celestial cycles as signs of divine communications. Many cultures have attached importance to astronomical events, and some – such as the Indians, Chinese, and Maya – developed elaborate systems for predicting terrestrial events from celestial observations. Western astrology, one of the oldest astrological systems still in use, can trace its roots to 19th–17th century BCE Mesopotamia, from which it spread to Ancient Greece, Rome, the Arab world and eventually Central and Western Europe. Contemporary Western astrology is often associated with systems of horoscopes that purport to explain aspects of a person's personality and predict significant events in their lives based on the positions of celestial objects; the majority of professional astrologers rely on such systems.

Throughout most of its history astrology was considered a scholarly tradition and was common in academic circles, often in close relation with astronomy, alchemy, meteorology, and medicine. It was present in political circles, and is mentioned in various works of literature, from Dante Alighieri and Geoffrey Chaucer to William Shakespeare, Lope de Vega and Calderón de la Barca. During the 20th century and following the wide-scale adoption of the scientific method, astrology has been challenged successfully on both theoretical and experimental grounds, and has been shown to have no scientific validity or explanatory power. Astrology thus lost its academic and theoretical standing, and common belief in it has largely declined. While polling studies have demonstrated that approximately 25% of Americans, Canadians, and Britons say they continue to believe that star and planet positions affect their lives, astrology is now recognized as pseudoscience.

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Galileo Galilei
Galileo Galilei was a Tuscan physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism. Galileo has been called the "father of modern observational astronomy", the "father of modern physics", the "father of science", and "the Father of Modern Science." The motion of uniformly accelerated objects, taught in nearly all high school and introductory college physics courses, was studied by Galileo as the subject of kinematics. His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter, named the Galilean moons in his honour, and the observation and analysis of sunspots. Galileo also worked in applied science and technology, improving compass design.

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Mars effect
Credit: Chris Brennan
Graphical representation of the Mars effect research by Michel Gauquelin, showing the prevalence of the natal position of Mars in the birth charts of athletes.

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Sagittarius
Sagittarius is the ninth astrological sign in the Zodiac, originating from the constellation of Sagittarius. In western astrology, the sign is no longer aligned with the constellation as a result of the precession of the equinoxes. Sagittarius is classed as a positive or masculine, extrovert sign; its element is fire and its quality is mutable. Sagittarius is ruled by the planet Jupiter.

Individuals born when the sun was in this sign are considered Sagittarius individuals. Under the tropical zodiac, the sun enters Sagittarius around November 22-23 and exits around December 21. Under the sidereal zodiac, it is currently there roughly from December 16 to January 14.

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