Shuler, Molton Ancrum. [from old catalog] · New York, Broadway publishing company · leaf 77
ne time than at another.We have previously noted that the earth has to moveeighteen miles per second to accomplish her annualjourney around the sun; but she does not traverse the 59 THE FAMILY CELESTIAL same distance every second of the year, for sometimesshe moves more slowly or more swiftly than… … ELLIPTIC MOT/ON - VARY/NG DEGREES We may readily illustrate this important principleto our minds by employing the use of a simple figure.We shall suppose the planet to be situated at that partof its orbit which is most distant from the sun. Herethe planets velocity is at its lowest rate; but, as it…
Astronomy
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