An introduction to astronomy : designed as a text book for the students of Yale College (1846)
Olmsted, Denison, 1791-1859, Yale College (1718-1887) · New York : Collins, Brother & Co. · leaf 251
A the aphelion,a body begins to move with a uniformmotion from C through the peripheryCEGF, and performs a whole revolu-tion in the same period that the planetdescribes the ellipse ; the motion of fJ^\this body will represent the equal ormean motion of the earth, and it willdescribe around S areas… … * Days Mensuration. ELEMENTS OF THE PLANETARY ORBITS. 227 CSM, and take ASP equal to the sector CSM; then the place ofthe planet will be P ; MSC will be the mean anomaly, (Art. 200,)DSC the true anomaly, and MSD the equation of the center. Sincethe sectors CSM and ASP are equal, and the part CSD is…
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-188-106.webp)
