The geography of the heavens and classbook of astronomy; (1863)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Whitall, Henry, 1819-1887? Celestial planisphere. [from old catalog] · New York, Mason brothers; Boston, Mason & Hamlin; [etc., etc.] · leaf 210
000 from tfte Earth, as shown in the figure, itfollows that she must describe the curve denoted by the middle line, which is concavetoward the Sun. This subject may be still further illustrated by the following cut: 411. How with the line of the Moons nodes? 412. What is the actual form of theMoons… … Here the plain line represents the Earths orbit, and the dotted one that of the Moon. \tA the Moon crosses the Earths track 240,000 miles behind her. She gains on the Earth,till in seven days she passes her at B as a Full Moon. Continuing to gain on the Earth,she crosses her orbit at C, 240,000…
Constellations · Stars
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