Uttmark's guide to the United States local inspectors examination for masters and mates of ocean going steam and sailing ships (1919)
Uttmark, Fritz E · [New York] The Author · leaf 40
s,and chronometers for use in Navigation are regulatedto this time. 32.—*What is Equation of Time? Equation of time is the difference between meanand apparent time. The amount and applicationmay be found in the Nautical Almanac for any givenday. 12 DEFINITIONS 33.~*jrAat is Civil Time? Civil Time… … ^Jl^ Fig. 25.34.—*What is Astronomical Time? Astronomical Time is a continuous period oftwenty-four hours, beginning at noon and ending atnoon the following day. (Fig. 25.) 35.—^What are the Celestial Poles? The extension of the poles of the earth intospace, or the poles of the celestial sphere are…
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![An illustration from Cosmographia in qvatvor libros distribvta summo ordine, miraqve facilitate, ac breuitate ad magnam Ptolemæi mathematicam constructionem, ad vniuersamque astrologiam institutens. Francisco Barocio ... avtore. Cum præfatione eiusdem autoris, in qua perfecta quidem astrologiæ diuisio, & enarratio autorum illustrium, & voluminum ab eis conscriptorum in singulis astrologiæ partibus habetur: Joannis de Sacrobosco verò 84 errores, et alij permulti suorum expositorum, & sectatorum ostenduntur. rationibusq[uam] redarguuntur. Præcesserunt etiam quædam communia mathematica, necnon arithmetica, & geometrica principia, nonnullæq[uam] propositiones, de quibus in toto opere sæpe fit mentio: ac demum locupletissimus index eorum, quæ ipsa Cosmographia continentur .. (1585)](https://img.insideoutlibrary.com/img/200/ia-cosmographiainqv00baro-399-107.webp)
