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 180
would not reach it in eleven years. 330. The Sun, when viewed through a Jelescope, presents theappearance of an enormous globe of fire, frequently in a state ofviolent agitation or ebullition ; dark spots of irregular form, »ib. His magnitude ? Diameter ? Compared with the Earth ? What illustration… … rarely visible to the naked eye, frequently pass over his disc,from east to west, in the period of nearly fourteen days. Th*»<5e spots are usually surrounded by a SPOTS on the sun. penumbra, or less deeply shaded border,and that, by a margin of light more bril-liant that that of the Sun. A spot…
Constellations · Stars
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