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# Title: Leibniz-Handschriften zur Mathematik LH 35, 15, 6
# Folio 72v, page id 00068208:0146
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fundamentum Astronomicum computandi tempus
Mandipraesens, sed quod non aeque facilespraxi
applicetur; E primum quod solem attinet difficultas objicitur
tum quia solis lous in respectu adalias stellaq
non aeque facile obseruationibo haberi potest.
nisi quale nus eos radius suis involuit, item qua,
tens saepe fit, ut sol & luna mane, aut vesperi
simul videantur, quo casu Atidem habemus
faclem satis computandi rationem; aut qua
tenus ecclipses nobis monstrant situm atriusqe
sideris, etsi unum eorum tantum videatur,)
tum quia solis motus a stellarum fixarum
motudiuersus, exiquo tempore non redditur
is
sensibilis; cum enum Luna una primimobilio
revolutione gradibus retardet tredeuim, sol
praeceditur non nisi uno; quod posterius
incommodum est in cateris planetis praeter
exito modo
Lunam omnibus (demptis doucalibus, ut postea
dicam) et etsi priore cateant, id est etsi
possint simul cum fixis obseruiri, habent
tamen aliud, ut rarius appareant in coela
quam sol. Lucquideris tamen sit, certum
est si plures simul aut ducersis exiqui
inter se intervalli temporibus Blanetae ob,
serventur, computationem redditum iri
certiorem. (+ speciatin in sideribus
circumjonialibus notatum est, earum reuo
lutiones pecutiares circa Jouem esse satis
celeres, quarum Eptemerides, si ut speramque
ad perfectionem deducentur poterit
horum quoque siderum teles copio obsercatorum
usis esse aliquando ad tempas mundi
praesens seu ipsius revolutionis velpercod:
particularis atatem definiendam, luna
non apparente; sed rarus eorum con,
spectas est, nec proinde magnus indefructus
in mari sperandus, esi ad longitadine locorum
Terrae