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Show ASTRONOMICISL DE SPHAERASOLIDA. DE INSTRV'M‘E‘N'T‘IS ‘Ufm infimmmti. 79 ‘ P H A! R A conllruatur ex metallo,2li;1vc tenaci 'matcria : in qua fiamantur duo punch diametralitcr oppolita,qui {int poli zodiaI N s T R v M 2 N T 0 im , vt (liaum elf, collocato , ii p'cr locum 4 Solis cognitum , vclis locum Luna: cogirolccrc ; quando {cilicet inter-- cliu vidciur vtrunqucluminarc : Pom: armillzim cxtcrior‘em {upcr lo~ cum Solisiu zodiaco : & ibi cam firma. lndc voluc tomm inllrummtum {upcr polos mundi , vcrfus Solcm , cloncc vtraquc armilla ? fdlicrt zodiacus,C\' dicta exterior, {rib olwumlvrer. vt {Ciliccr linm loci Solis jaceat in diamctto communi liarum duarum armillarum: (luzr fi-dio comm u nis all zodilci cum armil‘la umc determinants longitudimm Solis . In rali cnim fitu zodiacus‘infirumenti zodiaco cm lc'lli rel-pondcbit : hoc ell: iims huius illius litui‘. Tunc‘ itaquc inll‘ru~ memo fic fixo ac firmato, volu-c-armillam intrinfccam cum Regula fun. , &‘ piunulis RC: Lunam , doncc per foramina , aut acies pinuulaurum Luuam in C0310 videas , iiuc Lunx radius tranflnittatur pcripla forumina . Nam tuncnrmilia ipfa mtcriorin pcrif‘cria zodiac'r indica- Bit locum longitudinis Luna‘ . Er ciufi‘lcm armillzt arcus inter zodiacum & Regulam comprclicnliis;crit latitude Lunzt . Non alircr per locum Lunm mgmrum , planetaru‘m & Stellarum loca fihgula in lowgitudinc ac IatitudincnancifcctiS - 59d locum 111W: hicin-tclligc Vi" fum , non verun. : quorum loco rum diucrl'itas {cu di-l'lércntia dicitur (liucrlims 3{Pc&us , qud , fi obfcruatio fiat, Luna exiftcu to in me- ci.& zodiacus fuper vnfi polorfi deferiptus diuidaturin gradus 360.8: in 12. figna nominibus adlci'ipti. Mox laminam in femicirculfi curua bisrqui polis zodiaci,clauis aflixis,pcr duo Foramina infertus applicatur,ita vt (up polos ipfos circfiuolui poflitpcr rotfi ambitum zodiaci. (hi lEinicitculus hinc indc 3 Perifcria zodiaci,in go. gradus difiinguatut,ita vt pofitus flipcr longitudine afiri,in tcrmino latitudinis Sop ten trionalis, vcl aul‘tralis indicet aflri locum in fupcrficic Sphazrx fignan dum.Hoc modo loca lingula {tellarum firmamcnti pet obfcruationcm, (Vt Ptzccdentis doflrina nos inl‘truir vcl per calculum liuc Ptolemai- cum, flue Alfonfinum cognira,in fupcrficic Sphxrx, vt in cclo iacent dilpoflta locabuntur.&imagines Iingularum confisllarionum graphi cé depingi portrunt . Mox per polos eclypticx & punch Solfiitialia defcribatllr circulus colurum folfiitialem rcprxfcntans : 36 in co duo punéta pct maximi Solis dcclinarioncm fl polis cclypticx remota ref: rant mudi polos. In quibus duo claui Egantur: {up quibus Sphxra Cir cunuolui pollit inter armilla p gradus diuilam,qu:e meridiani vicé gc rat:&in meridiani plano fixa flatuatur. Scdimer alii armilliquec horizontis officio fimgatur,in horizontis piano iaccn r6, eleuari ac deprimi poflit cf: rota Sphccrafecundum altitudinem poli cuiuslibct rcgio nis ac loci. Dcniq; opus crit quadritc cuiufdfiquartm armillx, gm :3 girudine, nulla CH: . Item quanto Luau fucl‘it VCFIi'Ci horizon {1'5 Vid- vcrtice horizotis (quod lummfi in meridiano punch} elk) ad horizétc dcfcédés,inq; papartes (lil‘llfils,tt‘l'lnint:t {fallarfi altitudincs fupra ho nior; tan'ro diucrl'itas inlatitudinc minor crit'. Tame-n infirumcn-‘ rizété. Na reuoluta Spha'raulonec firlla (cuius nota litfrius altitu do) tum flmpcr‘rcctificari potcrit, {ccundum vililm Emma Iocumin lon- Ratuatur in pfiéto {has altitudinis in per-if'cria difli qua. mntiS termina to;iam tota Splirera liflctur,in co inf‘tanti ad fltfi Sph-xra: ccrlclhs,hoc dio punéto {cmicirCuli zodiaci cxtantis: ttlncdiu‘erlims afpemas iii-16- gitudinc. Similitcrpcr locum al'icuius Stella? cognimm > POtfl‘it inucniri altcrius aflri rum in longitudinc, (11131111 in l‘aritudihe locus .* Namque'in afiris fupcrioribus, ac fixis Stellis diuctfita-s afpccms 61F infcnfibilis . @gndoquidcm tetra firmamcnti reflwcm puncri quafi vi'ccrn habeat, & perinde ccntrorum infirumcnti 8: term: difl-antiar rmllim fcnfibilcm diffircnriam obfcruarionibus drcta‘rum Stellarum‘ ho‘ri cflz,Firmaméti. Vndc tfic céfiabit in in firuméto,qu:e l‘tclla: ad talé (1L191I1 Item, céfillit. msridiano in vc occidir,qux zouté,0riaurur,qu:c ppetufi ilelitelcat,& qux occafum nclciat. Et quo‘pactoulu polriniin di lifhmtur in horizétcflloc ell: in Sphzera rccm)vmucrfa alh'a oriatur, in \:Cl:[lCc & occidittfk quo demfi pacto,dfi polus Sphxrre collocatur mgcrat.‘ Haz'c dcinflirumento armillariex quinto maggots Ptolcmai- {ummo meridianifiimidifi ccgli nunqui occiclat, ac reliqufi dimldiuu} ca: confirucrionis in fumiu‘am redacta fin: fatis. Nam Ioannes deMonte rcgfo in libcl‘l‘o quodam'fiurumlobf‘cmationum , huiul‘modi" llcllaru (qr?) ibi Aequator vnitur l10rizéti)nfiqui oriatur. Ité collabfit nilfrumfenti, ac Torqucti , 82. (madrati‘ fabricam , vfum & dcfcrip'tlonem fittis expel-nit. Nobis tamen, qui mm intfrumcntorum, (111:3 m Iibror'um pen‘u‘ria-in lufcc rcgionibus & hac tcmptfiure laboramus , fatis fup'crquc fitcrit Qgidrans : &pro miraculo Aflrolal‘ium‘ ml-intcllcctum oficntatur ,, adco tetrcnorum curls inuoluimur. D 5': dcclinatiécs, alhéfioncs,arcus diurni ac nocturni:& rcliqug rcliquoru Hmc cx 81mg fitufi p;1ffiones,(1in afh'Onomicis rudimétis cxponunt'. lnc gnre Ptolemaicre céfh'uctionis. Haze Cépc‘ndio no'firo {lintlat1§.-ll Falector potcrit filwi vufiquoduis ex dictis inftrilinctis cnim curiolhs ad inng} bricarcaut fi infirumétfi paratfi habcat, hit-1c fpcculationc fui ornamcnmin,addifccrc,& vfum in lb umcnto adcom modarc.DE. |