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# Title: Leibniz-Handschriften zur Mathematik LH 35, 15, 6
# Folio 69v, page id 00068208:0140
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fixae (ad est saltem una earum, nam unabene
posita, catera omnes bene sunt posita) in vera
quamtunc hatent a meridiano primo distan
tia intio sunt constitatae veram distaatiam.
supposita horologii exartitudine in ipsa sphae
ra artificiali semper monstrabunt.
Ged hoc curiosum magis d elegans, quam utile
Loce existimo pro fitarum quodim usu,
calculi tanifacilis qui intra horaeminutum
nullo negotio fieri possit evitandi causa
machinam adhibere velle. At habebit fon
tasse usum cum Luminaribus observatis opus
erit
Quod si ergo sole Lunaue (quia intendiui sidera non lucent; nocu aliquando, cuna lucente eatum sideras
ponlucent) clivelimus; simi liter nulla alia
re opus est, juam ut praesentem locum houum
planetarum in rodiaco, seu latitudinem e
distantiam a meridiano primo seulongitus
dinem sciamus.
Hocautem ex Ephame
ridibus facile suire posse constat, aut certe
Ephemenides solis Lunaue ila facile accommo
dari possunt ut hoc monstrent. Quodsi
Ephemeridibus carere velis sufficiet machinum horo
logus ipsi spharae artificiali, eo quem supra dixi
modo applicari,  duo luminaria in ead machina
Ladiacum suis quodque spatiis percurrere, uti
jam tuma Automato poeo quodam Germano
procuratum vidi. Ita Machina semel recte
constituta, lalitadinem, longitudinemus solis
unita
e Luna etandem ica elevationis etium ultra
horizontem loci nauis, obseruatione acper consegus
Hordhontis meridianique loci in sphaera artiss
ciali simili tum ad aequatorem, tum adlocumi
lunae solijue accommodatione accedente, distan-
tiam Meridiani loci nacs a Meridiano primo,
seu longitudinem loci nauis, velllatitudine
quippejam praecomita: locum nauis pravisé,
definiri posse manifestum est.
Habes ergo ravem Mechanicam faclem et
ad usum sufficientem dato horologio exacto cognitat
loci nauis latitudine unica, eaque propemodum in
definita, ac rarissime per plure tres continuos désatura
observatione, Longitudines seulocum nauis verum
praecise inveniendi. Unde Geometrica percalculum Trigonometricum
definiendi rac ignorari noo potest, qpam pralive ex ponere, hujus loci non est.