A compendium of astronomy; containing the elements of the science, familiarly explained and illustrated, with the latest discoveries. Adapted to the use of schools and academies, and of the general reader (1850)
Olmsted, Denison, 1791-1859 · New York, R. B. Collins · leaf 49
tTdard of reference in estimating by the eye, the d,s-tance between any two points on the celestial vault, *6 THE EARTH. grees and minutes between that point of the meridianand the zenith. The complement of this arc will bethe suns meridian altitude. Ex. What is the suns meridian altitude at noon… … Thus in figure 7, let A represent the earth, CH the ho-rizon. HZ a quadrant of a great circle of the heavens, 64. What is the suns meridian altitude at noon on the 18thof June, in latitude 35° ? 65. Define parallax. Illustrate by the figure. What anglemeasures the parallax? Why do astronomers…
Astronomy
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-317-209.webp)