An introduction to astronomy : designed as a text book for the students of Yale College (1846)
Olmsted, Denison, 1791-1859, Yale College (1718-1887) · New York : Collins, Brother & Co. · leaf 220
chel, Ast. p. 276. JUPITER. 195 Let A, B, C, D, (Fig. 63,) represent the earth in different parts ofits orbit; J, Jupiter in his orbit MN, surrounded by his four satel-lites, the orbits of which are marked 1, 2, 3, 4. At a the firstsatellite enters the shadow of the planet, and emerges from it at5,… … C and A, that is, while the earth is passing from the positionwhere it has the planet in superior conjunction, to that where ithas the planet in opposition ; for while the earth is in this situation,the planet conceals from its view the emersion, as is evident fromthe direction of the visual…
Astronomy
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