(«4) 
fingdorumitA imotefcmt , ut mn fentiatur error' alipis ^ f4temh 
dmbus veltrihm revolutmibfis : His concejjis^ mottu Terra , pro cate- 
ris PUnetis necejfartb requifitus^ frimo nggre^iendus eji. 
Tab.T. Sit S Sol ; ABC DE, or bis terra:^ P, FUneta tj^arsX^f^i i» hane 
Fig.2. rem plurimis de uujis longe fraferendus eft y) (jr primi obfervetur 
vernmtempm locus ^ quo^J^ars opfomPur Soli; tunc enim Sol 
Terra coimidmtin line am re5iarrt cum M^rte ; vel^ (qt^odfere femper 
accidit) ji habuerit Utitudinem ^ cum punSo , ubi perpendicular is k 
Marte demijfa in planum Ecliptics incidit. Sic in Schemate, S, A, 
dr Vfunf in line a red a \ deinde poft 687 dies^ Mars r ever tit ur ad 
idem puniium P, ubi in priori obfervatione Soli opponebatur ; terra 
vero^cum nonrevertatur ad k ^ m(i poft 730^ dies^ in Solem 
rejpicit in linea SB, Mar tern vero in Itnea BP, obfervatis longitu- 
dtnibtis Soils Martis^ omnes anguli trianguli PBS dantur, ^ [up- 
pofiti PS 100000, in i'tftdem part thus invenitur longitudo itnt^e SB; 
pari ratione pft alteram Mart is periodum, terra extftente in C inve- 
nitur linea SC, nec abftmiliter linea S D.SEjS F ; differenti^que objer- 
njatorum locorum Solis, [unt anguli ad Solem ASB,BSC, CSD, DbE : 
Sic tandem '^fentum eft ad hoc problema Geometricum: Datis tribus 
lineis , in uno Ellipfeos foco coeuntibus, cam longitudine quatn 
pofitione,invenire longitudinem tranfverraediametri,cun) diftaniid 
focorum : Cuj^ refolutio extenditur etiam ad reliquos planetas^ft^ 
poft Jheoriam mot As terra cognit am, fcrutemur {fecundum methodum 
propofitam a Reverendijf, Epifcopo Sarisburienfi in Aftrononiia ejies 
Geomecrica lib,2. parc.2. cap,^.) trts diftantias planeta altcujtts ^ 
Sole in pofttionibm [uis, ^uoniam 'Vero Rev, hpifcoptfis fupponit 
planet am itaferri in or be jko^ ut aqualibiu temporibm aquales angulos 
ad focum alterum Ellipfeos abfolvat , ^ ei calculum [mm fuperftruis^ 
mn incongruum videtur^ oftendere^ quomodo id ipjum fieri pofjit abfque 
ifta fuppofuione, quxm obfervatio nos rejiciendam monet. 
Tab.i. SitSiiSol', ALBli, orbis terr^ ; V^Planeta^ vel PunS urn in piano 
Ecliptic£^ubi perpendicular is ^ a planeta demiffajncidit AB linea 
^ffidum or bis terr<x. : Ob fervent ur prmo Flanet^Jn P, longitudo & 
latitude, fimulque Soils Longitudo d terrain K ; poft per iodum ejuf- 
dem planeta, terra exiftente in L, obferventur denm pofitiones Flo-- 
net a Soli [que, ut prius : Jam ex obfervatis hngitudimbus Soils (fr 
Apheltiterrdt ^anguli ASK^ASL da ntur.d^confe qu enter later a SK,SL; 
(NamfiaftgulissAnomati£ co£quaufit ^cutm,prof^rtio tli,ut di^erentia , 
di(liintta media ^ Co finm anguli in Eccentric it atem duBi^fvd diftan- 
tiam Apheliam^ita Perihelia di(lantia,^idifimtiam Planets a Sole ia< 
data Anomalia'.quod ft angulm fuerit Qbtut\is^primus termimspropofti^ 
finis 
