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Astrology and astronomy were archaically treated together (Latin: astrologia), but gradually distinguished through the Late Middle Ages [1] into the Age of Reason. Developments in 17th century philosophy resulted in astrology and astronomy operating as independent pursuits by the 18th century.
Judicial astrology – Form of astrology for forecasting events; Locational astrology – Astrology that factors in locations on Earth; Medical astrology – Astrology of the human physiology; Meteorological astrology – Using astrology for weather forecasting; Mundane astrology – Branch of astrology dealing with politics, government, and law
A Venn diagram is a widely used diagram style that shows the logical relation between sets, popularized by John Venn (1834–1923) in the 1880s. The diagrams are used to teach elementary set theory, and to illustrate simple set relationships in probability, logic, statistics, linguistics and computer science.
The Revival of Planetary Astronomy in Carolingian and Post-Carolingian Europe. Variorum Collected Studies Series. Vol. CS 279. Ashgate. ISBN 0-86078-868-7. Hodson, F. R., ed. (1974). The Place of Astronomy in the Ancient World: A Joint Symposium of the Royal Society and the British Academy. Oxford University Press. ISBN 0-19-725944-8.
Astrology has not demonstrated its effectiveness in controlled studies and has no scientific validity, [1] [2]: 85 and is thus regarded as pseudoscience. [ 3 ] [ 4 ] : 1350 There is no proposed mechanism of action by which the positions and motions of stars and planets could affect people and events on Earth in the way astrologers say they do ...
A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.
A diagram in Byzantine astronomer Johannes Kamateros's 12th century Compendium of Astrology shows the Sun represented by the circle with a ray, Jupiter by the letter Zeta (the initial of Zeus, Jupiter's counterpart in Greek mythology), Mars by a shield crossed by a spear, and the remaining classical planets by symbols resembling the modern ones ...
On the other hand, some of the material could be fit in the history of astrology, to perhaps replace the statement: "Isidore of Seville (d. 636) was one of the first to distinguish between astronomy and astrology." The distinction was made by many before this time as I have shown in the revised intro to astronomy/astrology.