The geography of the heavens and classbook of astronomy; (1863)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Whitall, Henry, 1819-1887? Celestial planisphere. [from old catalog] · New York, Mason brothers; Boston, Mason & Hamlin; [etc., etc.] · leaf 229
trogression. It is obvious from this figure, that the mere distant an exterior planet is, and the slowerit moves, the le<> will be its arc Of retrogradation, and the longer will it be retrograding.Neptune appears to retrograde ISO days, or nearly half the year. The following table exhibits… … The right-hand figure represents Mars as seen at the Cincinnati Observatory, August 5,1845. On the 80th of the same month he appeared as represented on the left. Themiddle view is from a d* awing by Dr. Dick. 467. The telescopic phenomena of Mars afford peculiar interestto astronomers. They behold…
Constellations · Stars
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