The geography of the heavens, and class-book of astronomy: accompanied by a celestial atlas (1873)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, ed, Whitall, Henry, 1819-1887? Celestial planisphere · New York, Sheldon & company · leaf 181
imes the spotsseem to move upward, as they cross from east to west, while atother times they incline downward, while the curve lines aresometimes convex towards one pole of the Sun, and sometimestowards the other. 333. All these phenomena are owing to the fact that the axisof the Sun is inclined to… … March- June. September. December. Let E F represent the plane of the ecliptic. In March, the spots describe a curra,Which is convex to tt. 5 south, as shown at A. In June, they cross the Suns disc in nearlyBtraight lines, but incline upward. In September, they curve again, though in the oppo-site…
Constellations · Stars
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