# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/820424455:0135
# Permalink to this reading: https://leibnizlegible.com/page/820424455:0135?run=74
# Title: Nicolai Mercatoris Holsati, è Soc. Reg. Institutionum Astronomicarum Libri Duo, De Motu Astrorum Communi & Proprio, Secundum Hypotheses Veterum & Recentiorum præcipuas; Deqve Hypotheseon ex observatis constructione (shelfmark Leibn. Marg. 63)
# Folio 113, page id 820424455:0135
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=820424455&page=135
# Source image: https://digitale-sammlungen.gwlb.de/content/820424455/jpgs/default/00000135.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 39 lines, status machine
# Lines: 39 recognised, mean confidence 0.93
# 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.

Sect. 2.
ASTRONOMTa
Frici Veneris vel Mereuxii, _c intellisatur Facies plani, quan
oculis intueris, obversa polo ccliprica boreo. Sit vero b à a
linea aptidum, apopeum b, periseum d; at recta c a c linex
aptidumm insistar ad angulos rectos, per cenrrum mundi a
incedens, cademque reterens sectionem cclipeicae ee plani
cccentrici mutuam. Itaque nodus ascendens est e, delcen.
densc. Planum vero eccentrici ad planum ecliprica accedit,
_ ab eodem recedie vicissim moru librarili; qui perioduon
luam absolvit eodem remporis spatio, quo centrum exiercli
Per ebcde revolritur in orbem. Nam centro epicycli ex-
ictenre in c; planum urrumque, cccentrici pura e ccliptica
unicur; at pergenre cenrro exicreli abc ad apogéun b, pla-
num eccenerici ab eclipricae plano deviar, abscedens supe-
riore sui parre ebe, in Venere quidem, in boream, in
Mercurio vero in austrum; ae inferioe pars cde interea
abnuic ab celiprica in parrem contrariam, hoc est, in Venere
unoustrum, in Mercurio vero in boream. Inde procedence
cenero epicreli a b ad c; planum eccenrrici rurtus ad celipii.
Cam accedir paulacim, donec illi uniatur in nodo descendemtec.
Ac Porro ad a progredienre epicrelo, Plani eccentrici pars
interior cde abscedic ab ecliprica, in Venere quidem in bo-
ream; in Mercurio vero in austrum; at pars superiox ebc
incerea abrme ab ccliprica in parrem contrariam, hoc ett,
in Venere in ductrum, in Mercurio vero in boream. MOx
a a persenre epierelo ad c; planum eccentrici rurtus ad
eclipricam accedir paularim, donec illi vicistim uniatur in
nodo ascendenre c. Hinc licer incelligere; cenerum exicvclo
eneris semper ab celiprica dictare verlus boream, nili cu
in nodis edc incurric in ipsum celipricae planum, adeoque
eam parrem plani eccenerici, quam centrum epieveli Veneris
rerie, sive superior illa sIc, ue ebc, sire inferior, ut cde,
temper ab ecliprica deviare vexsus boream: de Mercurio vero
conerarium ubique incelligendum esse. Aeque hanc quidem
eccentrici librationem rulgo Deviarionem appellant: sed Pra-
pec eam est quoque epicycli Iuclinatio ad planum eccemrici,
quxe lacicudinem Veneri es Mercurio concilisc. 1 Nam AgurZ
Cda