# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/1016735707:0296
# Permalink to this reading: https://leibnizlegible.com/page/1016735707:0296?run=74
# Title: [Observationes Diametrorum Solis Et Lunae Apparentium, Meridianarumque aliquot altitudinum Solis & paucarum fixarum] Observationes Diametrorum Solis Et Lunæ Apparentium, Meridianarúmque aliquot altitudinum Solis & paucarum fixarum (shelfmark Leibn. Marg. 130)
# Folio 280, page id 1016735707:0296
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1016735707&page=296
# Source image: https://digitale-sammlungen.gwlb.de/content/1016735707/jpgs/default/00000296.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 62 lines, status machine
# Lines: 62 recognised, mean confidence 0.77
# 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.

LEB. II. De Diametro Lunae apparenti observanda.
oppositorum; habeantque duo criansula ABF
e ABI duo lacera duobus laceribus aequalia,
hoceAtBI, ipA BF, ec B A commune: Idco rario
Sinuum angulorum AFB, eB AF; es racio SinCIM
angulorum AIB, ec BAI eadem sunc racionilate
Tumm BA, SCBF, SIrCBA, et BP, qua cadem cAt:
lsitur per II. Prop. 5. Elem. racio Sinuum angu-
lOrum AFB ex BAF, ex racio sinuum angulorum
AIB ee BALincer sC sunt cadem: horum iEaque
Sinus illorum Sinibus sune proportionales.
Jam in LEtato obliguansulo ABF, nocus est angulus AFB, cum
decur e calculo lunarium mocuum reliquus ejus ad semicirculum P F. B,
qui est distantia Cuna vila a verrice, ec angulus B AF distancixe Luna
vera a verrice. Similicer in criansulo obliquansulo ABL cognoscim
ansulus AIB, quia datur ex obserratione, reliquus ejus ad femicireu-
lum angulus B ID, hoc eAtB FC semidiametri Lunx apparentis e su-
perHICiCLEKTE: Ouare per Friansulorum analy sim habebirur etiam an.
culus BAL Cemidiametri Lunx apparentis ecentrocerrae. Nam,
Ut Sinus anculi AFB, hoc est EFB distansia Luna visae a vertice,
Ad Sinum anguli BAF distantia Luna verae a vertice:
Sua Sinus ancguli AIB, hoc est BID, vel BFC Semidiametri Luna appes-
crentise superficte terra,
ad sinum ansuli BAI semidiametri Lunae apparentis e centroterra.
duod erac demonstrandum.
DESB P
nOC
ldum
vene
denam se
1
A BIEuE
di
cariu
M 1
etm
8ia 0
acum
AM IMB(II
Ad mo
numera
Ad arei
aucem
lemistie
422
5
sinus 10
A
sinur
nussemi
A
sinum
pler
diam
Ca
SBee
6 tr
e
sinur
dem
tam dis
da sinu