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# Title: [Observationes Diametrorum Solis Et Lunae Apparentium, Meridianarumque aliquot altitudinum Solis & paucarum fixarum] Observationes Diametrorum Solis Et Lunæ Apparentium, Meridianarúmque aliquot altitudinum Solis & paucarum fixarum (shelfmark Leibn. Marg. 130)
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700 L. IB. P. De observandis Luminarium Diamerris apparentibus.
ab omni aura: Nam, si vel minimum ex his omnibus neglicatur, vix ulla
sine errore, aut erroris formidine, observatio peracetur. Atque haec est causa,
cur eco hunc modum, post multam in eo exercitationem, derelinguere coactus
fuerim, praecipue cum habitationis mea locus ob contignationum infirmitatem
tremulus, praedictum commotionis incommodum vitare me non pateretur.
 H He ee  ee ee 1. Ae Ae _ Ae ve 5. Be  pe  e , , e
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2 22625252 52542525252. 5232.  25252525 252  5252525
C APV
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X.
e secunao modo odservandi Luminarium Diametros apparentes.
in pralcta observandi mechodus, licet exactissima, mul
ut dicum est, requirar cauriones, ut secure quis in ca
ce valeac, haec me ratio impulic, ur aliam facilio-
atem, hec minuscercam, si heri posser, excogirarem. Vide.
banss oo posle oberi majorem Diametri praecisionem, quam per
ipluri Fetercop, d, cum in aliquoc dierum lpacio, quod huc ne-
cellario requirebatur, rix Reri posset, uc instrumeneum in primo sicu
conserraretur; ica de hujulmodi obserrationum cerricudine merico fuit
ambisendum: Ouare ad aliam operacionem breviori tempore ab(ol-
vendam animum applicui: dispoliroque Teleleopio, uc praecedenci-
bus 4. ec 9. capicibus dictum est, quoliber dici momento, cum luberet
ad Solem, scu noctis ad Lunam plenam, imaginem lucidam in charca
volubili excipiebam: charram aurem circa cenerum Cuum sen sim re.
volrebam, quousque imago lucida Pemitam rectis lineis DF, _ F
parallelam luo mocu videretur describere: et dum eocus Luminaris
discus planum sux semirx perpendiculare BC, hoc est, decermina
cum quemvis circulum horarium pertransirer, tempus incerim eAluens
Perpendiculo numerabam: cujus rei Facilicarem cum semel fuissem
expertus, ita hujulmodi exercicio assuefactus sum, ur roro fere bien
nio, huic insistens, numerum vibrationum simplicium convenientem
Diamerro Solis, de interdum Lunx plenx, in corum eransiru, per cir-
culos quostiber horarios plusquam ducenris observationibus, immon
si repecirionis singularum ratio habeatur. plusquam bis millenis fuc.
rin
E