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Perspectiua horaria, siue, De horographia gnomonica tum theoretica, tum practica libri quatuor ... (1648)

Maignan, Emmanuel, 1601-1676 · Romae : Typis & expenses Philippi Rubei · leaf 257

An illustration from Perspectiua horaria, siue, De horographia gnomonica tum theoretica, tum practica libri quatuor ..., 1648, leaf 257
i0 3 Optice Horaria rolomum Verticale , auitrale videlicet, & boreale ; cum hoc tamen difcri- mtne , quod ficut litus horologij , ita & numerorum horariorum ordo in- ucrtendus elt . Sed vt hoc ipfum melius intelligatur ; fit vt in fecunda hu¬ ius propofitionis figura , iebtio communis Meridiani , &… … recta A E ; & linea hora: lextx B A D ; centrumque norologij A c linea vero axis A L ; & Itylus N M, fine etiam vt in prxdicta figura, dux hincinde fub ipfa BA D , linex horaria; AK, & A I ; fufiicient autem hx dux, ialtem im his reo-ionibus . Si itaque recta E A producatur in F , erit A F, linea…

Sundials -- Early works to 1800 · Horology -- Early works to 1800 · Perspective -- Early works to 1800 · Horology · Perspective · Sundials

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