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# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 105, page id 727094130:0117
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=117
# Source image: https://digitale-sammlungen.gwlb.de/content/727094130/jpgs/default/00000117.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 32 lines, status machine
# Lines: 32 recognised, mean confidence 0.84
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

L2C
Secundo, Sineambo apparentia loca, M, _ H, exrea meridia-
num; loca aurem vera (uc tactenus dictum) erune in communi
incersectione azimurhorum dacorum cum paralleloveros nimi
Tum in L, _ L. EE quoniam COgnIEa TuINE ZMI, Z N, Z. P, MZ. P,
NYZ. P; dabuncur duo criangula sphaerica Z. P M, Z P W, in quorum
latera nempe Z. MI, Z. N, ab angulis OpPOLiciS dUICUNEUF AECUS RqU-
les PI, P L: daTUT; PAFIO SINUS arCUS I M, ad Linum AECUS L. BI:
eadem enim est, qua sinus diltanciae apparentis a verriCCZM, 2d
linum dictarcix apparencis a vercice  NV,) datur ideo ee arcus P
, _ arCUS L. N, ParallaxeS quaeliCX; quxe invenienda CrANE.
So Llee+vad
67. Hujas.
Ratio sino patataeos anus lhanoment, au sinum parallaxeos altori
us Phenomeni, est os la tdn propo agrantiarum
acoveroterra, es directa propor s st at  ero  otbis
i a VOrTICC
Le cecaletta A, locus observatoris in cerrae superticie B.
Dcujus zenith D: Sincque duo phxenomena, O, e M. DicO
racionem linus parallaxeos BO A, ad sinum ParaIlAXeOS BM A;
esse compolicum, ex rarione AM, ad AO; e ex racione, CinuS
anculi DBO, adinum anguli D BM. Producatur BO, in H;
scque AN, aequolis ipsi AM: Manitectum elt igitur phanomenon
M, in N exiltens, habere parallaxem BN A: Criegne, UE AN,
hoc est AM ad A O, ica sinus parallaxeos BO A, ad Cinun pa-
rallaxeos BH A; e, uc sinus anguli D B O, ad linum anguli D
BM, ica Cinus parallaxeos B N A, ad sinum parallaxeos B M A. Si
sicur fuerine quorcunqs quancirares, nempesinus anguli BO A, (1-
nus anguli B N a, e linus anguli BM A; ratio primX, nempe (-
dus parallareos BO A; ad ultimam, nempe sinum parallaxeos
bMA; componicu ex racioxibus mediatum; nempe, sinno
anguli