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# Title: Leibniz-Handschriften zur Mathematik LH 35, 15, 6
# Folio 70v, page id 00068208:0142
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reperiatur difficile est, cum etiam in nocte sere
na aut coelo sereno, multa sint momenta aut
puncta non serena, le inter ea facile hoc quoque
Contra in multis noctibus non serenis, aliquot al,
tem momenta temporis aut loca coeli serena
sunt, quod in nostra methodo sufficit.
Solutio haec est: in sphaera artificiali in horponde
qualem supra descripsi, polus ad datam srocinanis)
eleuationem erigatur; stellae quoq obseruatae
ea sapra hordiontem loci qua observatione com
perta est, elevatio in eadem sphara detur.
Obseruetur jam lunae non altitudo tantum
seu eleuatio super hord, ontem in instrumen
to ad horchontem perpendicularit sed e eadem
opera differentia seu declinatio plarga lunae
a plaga stella dictae. in hordionte vel instru,
mento graduum, ut circulo, aut semicirculo
aut quadrante etc adhorisontem parallelo.
seu ut appareat quoad euis fievi praecisé potest
quem planum Lunae per centrum, Rorihon
recto
lis ad angulos transiens, ad planum stella
eodem modo transiens angulum faccat.
Jamet si erum id planum stellae sit verticale
seu transeat per centrum telluris at planum
luna non sit verticale, cum productum.
non transeat per centrum terrae, nisii cuna
sit loco verticalis; quia stella parallaxi caret
luna vero hrabet parallaxin; nihilominusta
men postea per parallaxeos supputationem
errocem corrigendum esse dicemus.
Quo
facto Luna in sphaera artificiali eo in loce
notetar ubi tum, supra tordrantem eleua
tionem, tum a stella declinationem habet.
datam, qui locus propterea eo ipso fit de
terminatus ac proinde habetur lunae latitudo
sed guca Barallaxis luna turbat
facit ut locus in sphara primi mobilis einaque
debeat assignari, qui observatione deprehendit
una
(.nisi st verticalis, ubi parallaxi caret.) quia
ex alio loco spertanti alia loci determinatio
oriretu