= 45P == 



Quae vero corre&io ctim in eccentricitatem Urani dufta fit^ 

 facile patet, maiores dtintaxat aequationes eiusmodi effe- 

 £lum fenfibilem producere ^valere,; unde hic nonnifi aequa* 

 ,tionis 



:H~ -+- 4 4 / Wfin (20-^7:) — i49 // ,9.fin(2 J ©-^-7r / ) ($. 18.) 

 et aequationis 



Fzzr-4-5 2^ 2 7 fm(2i— £) .($, 17.), 

 ratio habenda eft. 



15. 20. Piioris H binos terminos in nnura formae 

 iC cof (2 .$ — t> -4- C) feqttente modo redigere licet. Pofito 



2 $ — l? — y\ 9 44", 24 = a , 1 49%, 9 — b, 

 jhabemus 



H = -+- a fm (>i — tt) — h fin (^ — m') 1= c cof (>i -f- C), h. e. 

 ;a cof 7r fin vi — a fin 7rcof 1 — b cof 7r / fin >i 



H- b fin 71'cof >) zzziCiCof Ctcdf >i — c fin C.fin y\, 9 

 unde fequitur 



c finC — fceof 7t' — a cof % et c cof C~ b'fin 7/ — a fin ir 9 

 ideoque 



tang C — - c °S nt ' — a ca ^ et c — h c °J' rT/ — a ^S^L ^ 



o b uti tt' — a jia tx '* Jm C 



Quare cum fit 7r~3<5o° — 1 1° ,39' n" et ix' '— 180 -4- 

 89 4/ io 7/ (Tab. I. §. 12.), reperitur C = 1 8° *>' .> c z= 

 — - 147^4^ et 



H = — 147% 42 -cof (2 $ — |> -4- 18° I 7 )- 



.'§. 21. Si iam in aequationis centri termino primo, 

 puta v = — 2 y fin ( $ — tt) , loco £ fubitituatur -f- H , 

 fiet 



M m m 2 # == 



