Peck, William G. (William Guy), 1820-1892 · New York, Chicago, A. S. Barnes & company · leaf 68
earth as seenfrom the sun. The determination of this angle has occu-pied much of the attention of astronomers for a long period THE SOLAR SYSTEM. 63 of time, and Prof. Newcomb, in summing up the resultsdeduced from all the different methods that have been used,but not including those of the various… … Fig. 25. Diagram of the orbits of the four interior planets. Explanation. The scale of the diagram is one inch to 92£ millions of miles.The sun being at S, the direction of V-E from S, is that of the vernal equinox ; andthe perihelion point of each orbit is shown by the place of the sign, that…
Astronomy
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