# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/820424455:0157
# Permalink to this reading: https://leibnizlegible.com/page/820424455:0157?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 135, page id 820424455:0157
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=820424455&page=157
# Source image: https://digitale-sammlungen.gwlb.de/content/820424455/jpgs/default/00000157.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.
AASTRONOMIA
divellantur; etiam  celluris centrum moru annuo circum-
feratur; sed vi magnerica quodque signum à coenomine
luo rerineatur in eodem licu. League eo b V, ∞cW, _C.
reteret colurum Solsticiorum terrestrem, transeuncem per
Dolum ecliprica cerrestris australem nobis obversum b, c, d.
_cc. _ per boreum quogne post b, c, d, c. absconditum;
nec non per urrumque xequaroris rerrectris polum, australen
quidem nobis obversum p, e boreum in averso hemisphx-
rio policum in o. Enimvero si a polis eclipricae cerrectris,
1. pr. australi nobis obverso b, _ boreo post b abscondico
lumacur undique distancia 23=, _ incelligantur isto inter-
vallo circa urrumque polum eclipricae descripri duo circuli
minoresm no p, _ qui post cum larer in hemisphario aver-
0; Tum (i a centro relluris exrediarur verinque radius 2d
circumterentiam dictorum circulorum minorum, ica ut duo
cadii in unam diamerrum directe extendantur, Exoque puncto
medio istius dismeeri in cenero celluris b, circumducaneur
extremirares diamerri in circumterentia circulorum minorum
mnop, ee pone cum larentis; describetur ab ipla diumetro
superticies duorum conorum, quorum apices in cenero cel-
luris coniscane, ac bales sune ipsa plana circulorum mino-
rum mnop, ec pone cum larentis; in quorum circumse-
rentia extremitares circumducebaneur. Porro duplicem hunc
conum per medium findic planum circuli illuminarienis pro-
secti in rectam mn. Ubicunque enim rellus versetur in sua
orbita; radius a Sole a ad cenrrum relluris b, 6, d, _c. ex-
census, perpendicularis erit plano circuli illuminarionis mn
idem que hoc planum mn requaliter Andic ex conum duplicem
 bales ejus mn op, quaeque pone hanc latet. Iis ita DO-
licis: Onando tellus est in b in principio Arieris, axis aequa-
coris ob p. a polo boreo arque averto oper centrum cerra b
ad polum australem obversum p exrensus, incidir in planum
circuli illuminacionis m X; arque cum radius a b, centra Solis
deterrae connectens, perpendicularis est axicerrae op ligui-
dem perpendicularis est idem plano illuminationis, in quo
axis op prorempore sirus est. FTic ixicur jam, cum circulus
il