Early astronomy instruments and methods were greatly influenced by astrology. Astronomical theories and the study of celestial events were closely related in ancient societies like Babylon, Egypt, and Greece. More precise observational instruments were required because astrologers aimed to forecast earthly events by comprehending the movements of planets and stars.

To anticipate eclipses and planetary placements, for example, the Babylonians developed early astronomical tables and improved observing tools such as the gnomon, which was the ancestor of the current sundial. Similarly, astrological considerations had a significant influence on the work of Greek astronomers like Hipparchus, who is often regarded as a pioneer in the creation of trigonometry. The necessity to comprehend celestial body placements for astrological forecasts drove him to create star catalogs and systems for predicting celestial events.

All things considered, astrology served as the inspiration and the basic structure for the creation of astronomical instruments and methods. As a result of the quest for astrological information, observational astronomy advanced, setting the stage for the ultimate separation of astronomy and astrology and the development of contemporary scientific techniques.