Elements of astronomy ... with explanatory notes, and questions for examination (1855)
Brocklesby, John, 1811-1889 · New York, Farmer, Brace & co. · leaf 25
osophical terms and expressions,which are constantly occurring in the discussion of as-tronomical subjects. These must be mastered in orderto obtain a clear understanding of the science, and yetthey are by no means difficult to comprehend. Themost important of these are explained in the… … 1. The stars are frequently called orbs, from their round figures. Orbis,(Latin,) a circle. In what order fire the subjects of astronomy to he studied ? In learning astronomywh.it is it necessary for the pupil to do at the outset? What is an angle? 18 ASTRONOMY. line AB meets the line BC, and the…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
