Celestial scenery, or, The Wonders of the planetary system displayed : illustrating the perfections of deity and a plurality of worlds (1845)

Dick, Thomas, 1774-1857, Parker, E. S., former owner. DSI, David H. DeVorkin Collection (Smithsonian Institution. Libraries) DSI · Philadelphia : Published by Edward C. Biddle · leaf 85

An illustration from Celestial scenery, or, The Wonders of the planetary system displayed : illustrating the perfections of deity and a plurality of worlds, 1845, leaf 85 — ect end of the telescope, having such a degreeof concave curvature as shall nearly correspond with a segmentof the diurnal arc at that time described by the sun, with itslower concave edge at an elevation a small degree above theline of collimation of the telescope, when adjusted for viewingthe… … The above figure will illustrate my idea; where A B (Fig.XIII.) represents the concave curve of the board to be usedwhen the planet is in south latitude ; CD, a segment ofthe apparent diurnal path of the planet; and E F, a segmentof the suns diurnal arc. Fig. XIV. represents the board tobe used…

Astronomy

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Celestial scenery, or, The Wonders of the planetary system displayed : illustrating the perfections of deity and a plurality of worlds (1845)

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