5 8 DE ST.iTIONIBFS PLANETARVM 



D ,; ftantia rlanet.ie mtiioris OS fit __D. 



\a minore orbita fit pa.r_meter _r p 

 diftinti.i plaaetae OI ~ d. 

 Hiec intcrioris orbitie diftinua fumatur vt data: 

 er.gq et angulus 10 F, quo axium pofitio de- 

 finituf. 



Sinus anguli FOI~r, cofinus — c. 

 Habetur autem practerea ex nitura ei ipfeos 



Coiinus anguli FOS-r^- p ^N, eiusque 

 finus z= M. 



ex conditione ftationis eft 



i_ i 



Cofmus anguli SOIzrrD^/ £ ~ 4 t> 



DD/> 2 -M-"P 2 

 eiusque finus _r p. 

 Inde fit porro (ob angul. SOI— ang.FOI — ang. FOS) 



i. #^4rf, ergo, r^-Nc — Ms. 



quadranJo fit 

 _. r 2 ^ 2 -2^NC4-N 2 f 2 -M 2 i 2 — r 4 -r 2 N 2 -r 2 ,- 2 



N 2 ^ 2 . 



L€ti fubftitutione aequiualentium, et diuidonepejr 



r 2 habetur 



r p_ f . ft VP'.-4_/> (2D-P) 2 ' 



' f^nv/ 2 ■ — -+-r 2 A 2 — - 



\rua (ijr^^/p^-i-' a ^ :p 



Pxa.cedcns aequatio quarta ducatur in 4DDFF 

 £DD/>|-W^P_) a . 



