Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics

Aimed at readers without advanced mathematics, the author presents Newtonian astronomy in clear, practical terms, describing the solar system’s arrangement and demonstrating the Copernican model. Chapters explain planetary motions and phases, refute older geocentric ideas, and explore gravity as the physical cause of orbital behavior. The text treats light, refraction, atmospheric effects, and methods for measuring distances, time, and longitude, and it analyzes tides, eclipses, and the apparent motions of stars from different vantage points. Practical aids include tables, catalogs of eclipses, and descriptions of instruments and orreries used to illustrate the concepts.