Harris, John · Montreal, Lovell Printing and Publishing Co. · leaf 216
will have made six annual revolutions and havegained 220 days. At this time the comet again becomesvisible from the earth in a situation nearly the samerelatively to the earth as when it was observed 2410days previously. During this longer term the cometmight be twice visible from the earth ; but… … 5tiOi o •^^/idnf fo ^O 1^ ^^ o 5; ^ 3ix ORBIT OF BIELAs COMET. 35 orbit (revolving around Jupiter) at the time that theearth passed by, the comet would not be visible from theearth until overtaken again in the next revolution; and,in the second place, it should be observed that, when thecomet…
Astronomy
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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)
