Clavius, Christoph, In Sphaeram Ioannis de Sacro Bosco commentarius

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331294Comment. in II. Cap. Sphæræ min. 23. complectetur, hoc eſt, milliaria Italica 898 {23/24}. tribuendo ſingulis
grad@bus milliaria 62 {1/2}.
& ſingulis minutis milliar. 1 {1/24}
Rvrsvs inueſtiganda ſit diſtantia itineraria inter Romã, & Malacham,
in aurea Cherſoneſo, cuius longitudo habet gr.
161. min. 0. latitudo aũt borea
lis quoq;
, ſicut & latitudo Romæ borealis ẽ, gr. 2. mi. 2. Fiat, ut 10000000000.
quadratũ finus totius, ad 7434662088. rectãgulũ contentũ ſub 74392. ſinu cõ
plementi latitudinis Romæ, quæ cõtinet gr.
41. min. 56. & ſub 99939. ſinu cõple
mẽti latitudinis Malachæ, quæ habet gr.
2. min. 0. ita 156640. ſinus uerſus diffe
rẽtiæ longitudinũ, quæ cõplectitur gr.
124. min. 30. ad aliud, inuenieturq́. fere
hic numerus 116456.
a quo, qm̃ maior eſt, quàm 76679. ſinus cõplementi diffe
rẽtię latitudinũ locorũ, quæ cõtinet gr.
39. min. 56. auferemus 76679. ſuũ com-
plementi differentię latitudinum locorũ, remanebitq;
ſinus 39777. cuius ar-
cus gr.
23. min. 26. additus quadrãti efficit gr. 113. min. 26. hoc eſt, milliaria Ita-
lica 7089.
{7/12}. pro diſtantia inter Romam, & Malachã in aurea Cherſoneſo.
Sit quoq. inquirendũ ſpatium itinerariũ inter Romã, & Mexicũ in India
occidẽtali, cuius longitudinẽ Ioſephus Moletius in tabula noua Hiſpaniæ no
uę in commentarijs in Geographiã Ptolemæi ponit ferme gr.
272. min. 30. la
titudinẽ uero borealem grad.
20. min. 20. (ut & Romæ latitudo borealis eſt)
quãuis alij aliã eius longitudinẽ, ac latitudinẽ faciãt.
Fiat, vt 10000000000.
ad 6975589059. rectangulũ contentũ ſub 74392. ſinu complemẽti latitudinis
Romæ, quæ eſt gr.
41. min. 56. & ſub 93768. ſinu cõplementi latitudinis Mexi-
canæ, quæ poſita eſt gr.
20. min. 20. ita 158778. ſinus uerſus differentiæ longitu
dinũ, (quæ eſt gr.
234. min. 0. quę quoniã ſemicirculum ſuperat, detrahenda eſt
ex circulo integro, ut remaneãt gr.
126. min. 0. pro differentia longitudinũ bre
uiori, nempe breuior diſtãtia inter Meridianos locorũ propoſitorum cuius ſi-
nus uerſus eſt 158778.)
ad aliud, inuenieturq́; hic ꝓpemodũ numerus 110757.
a quo, quoniam maior eſt, quàm 92977.
ſinus complementi differentiæ latitu
dinum locorum, quæ gr.
21. min. 36. complectitur, auferemus 92977. ſinũ com
plementi differentiæ latitudinum, remanebitq́;
ſinus 17780. cuius arcus gr. 10.
min.
15. quaſi, additus quadranti conficit gr. 100. min. 15. id eſt, milliaria Itali-
ca 6265 {5/8}.
pro diſtantia inter Romam, & Mexicum in India occidentali.
Postremo proponatur explorãda diſtantia itineraria inter Romam,
&
Cuſchum Metropolim prouinciæ Peru in occidentali India nobiliſſimæ, ac
ditiſſimæ, cuius lõgitudinẽ Ioſephus Moletius in tabula noua terræ nouę ſta-
tuit gr.
305. min. 40. fere, latitudinẽ autẽ auſtralẽ gr. 18. min. 40. fere, quàmuis
alij ſcriptores aliter ſentiant.
Et quia Roma uergit in Boreã, & Cuſchum in
Auſtrum, ſumens locũ borealẽ Coſcho oppoſitũ per diametrũ, qui nimirum
latitudinẽ habeat borealẽ gr.
18. min. 40. Deinde differentiã longitudinũ Ro
mæ, &
Cuſchi, quæ eſt gr. 269. min. 10. ſuperatq́. ſemicirculũ, auferemus ex toto
circulo, relinqueturq́ differentia lõgitudinũ breuior, hoc eſt, breuior diſtãtia
inter Meridianos datorum locorum, gr.
80. min. 50. Hãc rurſus ex ſemicirculo
ſubtrahemus, ut habeamus differentiã longitudinalem inter Romã, &
locũ il
Ium Cuſcho oppoſitũ, id eſt, diſtantiã inter Meridianum Romæ, &
Meridianũ
dicti loci, gr.
99. min. 10. His poſitis, ſi fiat, ut 10000000000. quadratũ ſinus to-
tius ad 7047823688.
rectãgulum cõtentum ſub 74392. ſinu cõplementi latitu
dinis Romæ, quæ eſt gr.
41. min. 56. & ſub 94739. ſinu cõplemẽti latitudinis lo
ci, qui Cuſcho opponitur, quę gr.
18. min. 40. cõtinet, ita 115 930. ſinus uerſus
differentiæ longitudinum, (quã diximus comprehendere grad.
99. min. 10.)

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