Apian, Petrus, Cosmographia

Table of figures

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[11] Si terra eſſet tetragona, vmbra quoque tetragonæ figuræ in eclipſatione lunari appareret.
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[12] Si terra eſſet trigona, vmbra quoque triangu-larem haberet formulam.
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[13] Si terra hexagonæ eſſet figuræ, eius quoque vmbra in defectu lunari hexagona appareret, quæ tamen rotunda cernitur.
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[14] ¶ Ecce Schema diuiſionis Parallelorum.
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[15] ¶ Sequitur formula præmiſſæ traditionis.
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[16] ¶ Ecce Figuram extenſam in plano.
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[Figure 17]
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[18] Hæc planius ex inſtrumento videre licet.
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[Figure 19]
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[20] Oppoſitum Augis.
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[Figure 21]
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[Figure 22]
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[Figure 23]
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[24] Figuræ Eclipticæ ad Meridianum Leyſzningen.
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[Figure 25]
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[Figure 26]
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[Figure 27]
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[Figure 28]
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[Figure 29]
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[30] ZENITH.
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[Figure 31]
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[32] Zenith.
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[Figure 33]
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[Figure 34]
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[Figure 35]
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[36] Ecce habitationes antedictas.
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[Figure 37]
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[38] S E P T E N T R I O. pars ſuperior.
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[39] Media nox.
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[Figure 40]
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page |< < (Fo.8.) of 140 > >|
21Fo.8.GRAPH. PETRI AP.
DE LAT ITVD INE TERRÆ,
LOCORV MVE.
CAP. VIII.
LAtitudo regionis vel habitationis, eſt ſegmentum
eiuſdem meridiani, vertice, ſeu polo horizontis,
atque æquatoris circulo diffinitum: & eſt ſemper
æqualis altitudini ſeu eleuationi poli ſupra hori-
zonta: quadam tamen ratione inter ſe differunt.
Nam eleuatio ſiue altitudo poli, eſt arcus meridi-
ani inter polum mundi & horizontẽ interceptus.
Latitudo verò loci, eſt arcus meridiani inter ze-
nith capitum, & æquatorrs circulum contentus. Hæ autem duæ por
tiones meridiani (vt auctor ſpliæræ demonſtrat) ſunt æquales. Nu-
merus igitur latitudinis terræ tam Septentrionalis quàm Meridio-
nalis, in ſolido plano´que, de. 10 in. 10. (vt aſſolet) ſcribitur: ſimi-
liter & longitudinis.
Formula huius traditionis.
17[Figure 17]
PRæterea ne quid ſupputationi noſtrę deſit, conſultò ap
poſuimus organum hoc, in quo latitudinis alicuius op
pidi, & eleuationis poli æqualitatem oſtendere decre-
uimus. Habes igitur iucundiſſime Lector hic horizon-
ta mobilem, quem ex parte Septentrionis aut deprime,
aut eleua, ſecundum quòd numerus graduum eleuationis poli,

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