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# Title: [Astronomiae Physicae & Geometricae Elementa] Astronomiæ Physicæ & Geometricæ Elementa (shelfmark Leibn. Marg. 124)
# Folio 365, page id 1040780814:0383
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L ID. lV.
EE CTFOME FREOE E, L FMEN FA.
363
Fractenus Solis Felipsin considerarimus rospectu totius Perra,
(vel potius, proprie Loquendo, Telluris Leliplin,) similiter prortus
atque Luna Fclipsin supra: Nunc illam asgredimur consideran.
dam quatenus ex dato superticiei Terrae Loco spectatur. FX quo
Keplerus Luna Ombram in Terra Dilcum exceptam spectandam
Altronomis prabuit ex Lunari Coelo, certatim contenderunt, ut
Felipsin Solis in dato Loco risibilem, omniaque huc attinentia, ex
eodem Schemate Disci Terrestris, per quem Lunaris Penumbra in-
cedit, deducant. Verum cum iltud modominus seometrico (cuique
calculus trigonometricus rix indelicari porest) certe minus naturali
procedat, et (Fatente ipso D. De La Flire, qui hunc adhibet) paulo
longior videatur; nos exemplo iptius Repleri in Fabb. Rudolphin.
(qui certe inventi sui vires limitesque Patis novexat) alteram insiste.
mus riam a Ptolemaeo in Almasesti Lib. VI. _ optimo ejus Lxplica.
tore Resiomontano indicatam, ut illa quoque Lectori innotelcat;
laudantes interim methodum d Cl. D. Flamstedio in Doctrina Tua
Sphaerica traditam, qua Felipsis Solaris, appulsusve Luna ad Fixas
in dato Loco continsens, sraphice ee puletire protrahitur, Locis in
altero Telluris Fremisphaerio, Soli aut Stella obrerto, orthographice
in circulum ejus maximum projectis.
Desisnet cx Felipticam, S Solis, L. Lunx Locum verum Tem
pore Conjunctionis rera; inveniantur (Dex PFOD. LXIII. L ib. TI.) ad
dictum Tempus (licet non Cumme accuratum) Solis Lunaque P’ar-
allaxes Lonsitudinis ex Latitudinis, quibus illorum Loca in Reli-
peica diltantia que ab Reliptica corrisantur: ita nempe ut ex veris
praecedentibus, sire dTerra centro rilis L. ocis, cradant ex dato in
superficio Loco risi (qui _ simpliciter vis nUINCUPAnEUF) S eE A.
Alium à priore non designamus Locum Solis, ne contulio in sche-
mate oriretur, tum quod Solis P’arallaris tam
parra est ut in calculo hoc nesligi fere pol
TE, tum praecipue quod Parallaxin Luna d
Sole sumendo (ut in dicta PrOp. LXIII. L ib. II.
octentum est) possit Linca Nc pro Via Solis
vila sire Feliptica pautulum luxata haberi.
LOcuS Luna apparens a ad Felipticam re-
ductus sic C, ejusque Latitudo aC. OF autem determinetur punctum
in quo Luna centrum à Solis centro proxime abesse Spectatori
proxosito videtur; hoc est, quando Obscuratio maxima (si quidem
ulla) eAt futura; invectisetur situs Via apparentis Luna d Solc, Cx
praecedentibus quarendo rursus, ad tempus parum caris distans ab
illo quo Luna in a apparet, Loca Solis de Luna dato Spectatori
vila, ec cositando Solem ad Locum pristinum sretractum simulque
Lunam tantundem. LOcus L una Sic inventus sit K, e ad Rclipri-
cam reductus Faciat illius L onsitudinem in D d L. atitudinem XD.
Datis autem arcubus CA, DE _ cD determinabitur (per L em. Prop.
XXXVT) Via Lunaris risa AN Stus respectu RCliprica; punctum
nempe n concurus cum Lcliprica aneulus que A N D. Fx Solis L.0c05
13IBB Cseer