# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/820424455:0052
# Permalink to this reading: https://leibnizlegible.com/page/820424455:0052?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 30, page id 820424455:0052
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=820424455&page=52
# Source image: https://digitale-sammlungen.gwlb.de/content/820424455/jpgs/default/00000052.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 40 lines, status machine
# Lines: 40 recognised, mean confidence 0.90
# 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.

ASTRONOMTA
geriem esse deprehendir. IIIx vero Rellula, quanquam sitI
_x magnirudine differentes, in plobo exhiberi non solene,
Sed Telescopio Tolo discernuntur; ideoque de iis non est
quod hoc loco inseramus plura.
Delcriprionem globorum modo expotiam segnitur usus
corundem, qui licer multiplex (IC, prxecipue tamen, ad rem
praelentem quod actinet, his fere Problematis explicari
porelt.
Probl. T. Dari in plobo terrestri loci loncirudinem ex lait
ndinem invenire. Datum locum adrolve Meridiano eneo
(incellise sempex Faciei ejus orientali, numeris distinetx) e
gradus quaroris, quicum sub Meridiano reperietur, quo
cunque numero insionitur, est ipsa longieudo quaelira. Tum
ab quatore computabis in Meridiano eneo ad locum usque
darum gradus lacirudinis, quae eric Seprenrrionalis, si dacus
locus ab quatore recedat ad Septentrionem; aultralis au
tem, si ad austrum.
Pxobl. 2. Dara loncirudine es latitudine; locum ei ill
coneruat in slobo terrestri assignare. Quare in A quatOrE
gradum longirudinis dacx, acque illum Mexidiano Xneo ad
volve. Tum ab AEquatore numera in Meridiano gradiis
lacicudinis dara versus polum Arcticum vel Ancarcticum,
prour ipsa latirudo borea fueric, vel australis; e punctum
in quod delinit numerario, est ipse locus quae situS.
Probl. 3. Clobum nerumgue ad datam latitudinem. vel
elevationem poli aptare; nec non quadrantem alticudint
puncto verticali applicare; denique globos ope pyxidis nauib
ad quatnor mundi cardines disponere. Si lacirudo loci data,
Sc borea, elevetur polus arcticus supra Hlorizoncem; (II
australis, Ancareticus: Tum a polo elerato versus FTOri
Zontem computa in Meridiano graders elerationis poli datae,
ex punctum, in quod delinie numeratio, adjunge Fori
nonci; ica elobus ad datam elerationem poli aptacus eriso
Deinde ab quatore compura in Meridiano Cursum gradis
lacirudinis datxe (quae semper aequalis est elevarioni pol1)
e punctum; in quod delinie numeratio, erit verrex dast
10c1
1.
L