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 280
it must beobserved, that the same signs always keep in the same points of theecliptic, without regard to the place of the constellations. Hence itbecomes necessary to have new plates engraved for celestialglobes and maps, at least once in 50 years, in order to exhibittruly the altered position of… … To explain this by a figure: Suppose the Sun to have been in conjunction with a fixcaBtar at S, in the first degree of Taurus (the second sign of the ecliptic), 840 years beforothe birth of our Saviour, or about the seventeenth year of Alexander the Great; thenhaving made 2140 revolutions through…
Constellations · Stars
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