Popular astronomy : a concise elementary treatise on the sun, planets, satellites and comets (1865)
Mitchel, O. M. (Ormsby MacKnight), 1809-1862 · New York : Oakley & Mason · leaf 27
that the point V,on the line 0 0 prolonged, is the place of swiftestmotion, while the opposite point V^ is that in whichthe sun will appear to move slowest. 24 THE SUN Hipparchus, not satisfied with thus rendering a generalexplanation of the phenomenon, undertook to determinethe actual place of the… … E y many days longer tlie sun remained north of the equi-noctial than it did on the south of this circle. Thisquantity we have already given. By dividing the circleA B C D into as many equal parts as there are days inthe year, and by drawing F F through the center 0,and perpendicular to V V, we…
Astronomy
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