Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 131
olving in apparent circles ; but as wo are in or near the plane of the ecliptic,which is the plane of their orbit, they seem merely to pass to and from the plane.] 589. What is the Form of the Orbits of these Satellites ?They are very nearly circular. [This fact is ascertained by observing that… … PEEMAEY ASTEONOMY. 125 590. In what direction do they revolve ? From east to west, or in the direction their primaryrevolves, both upon his axis and in his orbit. [See the directions as indicated by the arrows in the next cut.] 591. Have they a revolution around their respective Axes ? They are…
Astronomy
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