Elements of astronomy: accompanied with numerous illustrations, a colored representation of the solar, stellar, and nebular spectra, and celestial charts of the northern and the southern hemisphere (1875)
Lockyer, Norman, Sir, 1836-1920 · New York, D. Appleton and company · leaf 81
ystem from the northern side of it, isfrom west to east, or, in other words, in the opposite di-rection to that in which the hands of a clock move. Sec-ondly, the paths of all the planets, and of many of thecomets, are elliptical, but some are very much more ellip-tical than others. 145. Next let… … The Plane of the Ecliptic and the Planetary Orbits. The straight line we suppose to represent the Earthsorbit looked at edgeways. The other lines represent theorbits of some of the planets and comets seen edgeways inthe same manner. The orbits of Mars, Jupiter, Saturn,Uranus, and Neptune, deviate…
Astronomy
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