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# Title: [Astronomiae Physicae & Geometricae Elementa] Astronomiæ Physicæ & Geometricæ Elementa (shelfmark Leibn. Marg. 124)
# Folio 352, page id 1040780814:0370
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ib. IV
352
ASTRONOMLE PAPSICA
e Terra, normalis ad Dilcum Terra Dr, C. a lo Lunx iIl l Occur.
rens. Sit sL Orbita Lunx, in qua P. Luna; soM Rcliptica; L. M 
stantia ex r apparensinter Solem e Lunam, L unx Parallaxi horizon
cali aequalis. Juneta SL producatur donec Terra Disco Dr occurrat
in r, ubi centrum Ombrae Lunaris in Dis.
Cum TCTTK excePEX verlatur. Dico anSU
lum rmr aequalem esse STL. Dictantia ap.
parenti Solis e Tuna e Parallaxi Solis
horicontali simul. Ducatur L. R parallela M I,
e iunsatur MR. Guoniam angulus TuVa
qualis est ansulis rmR e rur simul sum-
Peis, angulus autem TMR (per PrOP. XXIX. Lit
T.) aqualiS L. R MI, hoc elE (ob riciniam DUN-
CtoruI R C Y) L. TMI, es R Mr (ob eandem ra-
tionem) ips RLV, sre (Per PrOP. XXIX. FI.
T.) T.SM aqualis; erit rur aequalis ansulis
L TM CC L. SM Sinul Cumpris. Porro, quia ansulus L. TM Supponitu
Parallaxi Luna horizontali aequalis, e L. Luna; exit Distantia pun
ctorum L. e m Semidiametro Perra aequalis; (Parallaxis enim
Luna horicontalis est ansulus in quo Terrae Semidiameter videtur
ad distantiam aequalem distantix Terrae e Luna:) adeoque L. Sut
ansulus est proxime horixontalis Solis Parallaxis, (ansulus nimi
rum in quo apparet Terra Semidiameter ad distantiam Solis e
Terra, hoc cs, fere ad distantiam Solis _ LunX,) _ anontuS L TML
est Solis et Lunx Distantia ex centro Terra vila. EF igitur an
sulus rur aequatur Distantix Solis _ LunX ex TOrrR CentrO
risa _ Solis Farallari horizontali tumul Tumptis.
Fodemque modo E arCuS LM sit Semissis, Pesquialter aut duplus
Parallaxis Luna horizontalis; erit angulus rmr aequalis L. TM d
semitti, sesguiplae aut duxla Parallaxi solis toricontali. O. F. D.
PROPOSTTTO XL.L.
TOnlla esiS Novilunium futurum sit Fctipticum, hoc est.
nam in qualibet Terrae parte Sol partialiter aut totalite
deficere videbitur, determinare;  si futura est Fclipsis, ejus Spe
ciem desinire.
RCFCraL DCC Fellurem, in qua Poli rerolutionis diurnae sunt e
punctum que huic oppositum latens. Fremisphaerium in Schemate
conspicuum idem sE cum illo à Sole illustrato; adeoque DCC cir
culus, cujus contrum r, Flemispharium illuminatum ab obscuro di
serminans, cujus planum est Terra Discus. In planum Disei Fel
luris Dco excepta intellisatur Ombra Lunx à Sole facta: erit
haec sIC exCePEa Forma circulari, DUTa AM, CujuS CenErUM Y; quia
conus penumibrosus est rectus, ejusque axis ad planum Dilei Per
pendicularis fere: nam de calu quo r à r non mulcum distat nos
tancum lequimur, cum in hoc (olo L unae Ombra Terram attinsere
DONIt,
te
eur
M
D