History of physical astronomy, from the earliest ages to the middle of the 19th century. Comprehending a detailed account of the establishment of the theory of gravitation by Newton, and its development by his successors; with an exposition of the progress of research on all the other subjects of celestial physics (1852)
Grant, Robert, 1814-1892 · London, R. Baldwin · leaf 619
ce, but the majoraxis of the ellipse is increased by its action.Produce p h. so that h h may represent theincrement of the major axis occasioned by thedisturbing force. Join s h, and bisect theline s H in c. Then will s c represent thenew eccentricity of the orbit, and a s h bthe new position of… … II. APPLICATION OF THE FOBEGOING PRINCIPLES TO CERTAIN CASES OF ACTUAL PERTURBATION. (39). Let us suppose two comparatively small bodies to be revolving incircular orbits situate in the same plane, round a large central body s, and letthe mean motion of the interior revolving body be almost exactly…
Astronomy
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
![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-63-39.webp)
