Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 38
e sake of simplicity the earth is here supposed to be station-ary ; the earths motion really shortens very much the time of retrogra-dation. GENERAL VIEW OF THE SOLAR SYSTEM. 33 point of it to two fixed points is always the same. Fio\ 4represents an ellipse. The sum of ES and EF is justequal to the…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
