The geography of the heavens, and class book of astronomy: (1849)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Dick, Thomas, 1774-1857. [from old catalog] · New York, Huntington & Savage · leaf 185
-face, is continually varying in its direction. Sometimesthey seem to move across it in straight lines, at others incurve lines. These phenomena may be familiarly illustra-ted in the following manner. Do the same spots ever reappear on the ea.«t side ? Are the spots generally permaDenttnd utiiform… … Le* E E represent the ecliptic; A^-S, its north ana soprh poles, 3f the point<rhere the spot enters, and m the point where it leave? tne Snns disc. At theend of November, and the beginning of December, tne spot will appear tomove downwards, across the Suns disc, from left to right, describing…
Constellations · Stars
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