The Adolfo Stahl lectures in astronomy, delivered in San Francisco, California, in 1916-17 and 1917-18, under the auspices of the Astronomical Society of the Pacific (1919)
Astronomical Society of the Pacific, Aitken, Robert Grant, 1864-1951 · San Francisco Stanford University Press · leaf 296
revolution expressedin years. The easterly or direct motion of the planet aroundthe Sun is therefore less rapid than that of the Earth. In thefirst position planet and Sun are on opposite sides of theEarth and the planet is said to be in opposition. P^ is seen fromEl in the position P/ on the… … G H Fig. 12. The L.wv of Equal Areas in Elliptic Motion. Figure 12 shows an ellipse. The shaded sectors illustratethe law that equal sector areas are described in equal times.The shaded areas are supposed to be equal. It takes the bodyjust as long to move in its curve from A to B as from C to…
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
