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 319
the following five possible geocentricdistances in astronomical units, in order from left to right: —1.90; ±0.00: +3.91; +4.23; +6.85.In the curve the left-hand branch is due to the attraction of theSun, the right-hand branch to that of Jupiter. The negativeand the zero distances have no… … Fig. 16. Diagram for the Graphic Determination of the GeocentricDistance of a Celestial Body. turned out to be hyperbolic and on that account might havebeen rejected as improbable. As a final test on the validity ofthe ellipse all three orbits were compared with a later observa-tion, with the…
Astronomy
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