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The Description and Use of the Sector (1624)

Gunter, Edmund · leaf 92

An illustration from The Description and Use of the Sector, 1624, leaf 92
n es riling from .jthe-Eaft, and BE an arkeof the horizon for his fetting from the Weft: fo DC /hall bethe difference of afcenfion, and C E the difference of deten-tions A D the oblique afcenfion , and AE the oblique de-fcenfion of the fame place of the Sunne in our latitude atOxford of 51 ^r. 45… … Or to fit an example nearer to the latitude of London. LeeZ PS reprefent the zenith pole and Sun, Z P being $%gra30 w.the complement of the latitude, P 5 70£r.the comple-ment of the declination,andZ*S,40cfr.the complement ofthe Suns altitude.The angle at Zfhall /hew the azimuth, andthe angle at…

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