INAEQVALIT.. MOTVS COR?, COELEST. 173 



Coroll, 1. 



16. Circa 1 has> aequationes in genere id tan- 

 tum annotandum duco quod li prima multiplicetur 

 per yCm. s; fecunda pcr ( ^ — — jcof. r tertia per 

 —xfm.s tt quarta per ( -^— -*coC J , fumma 

 productorum futura fit v. 



i}'ddx-xddy)fm.s+Jy(dq z -dp 2 }fm.s+^(xxddp+2xdxdp) 

 "+" ~ bT (yyddq-\-iydydq) — lydxdp cof. s—xyddp cof / 

 — 2 x dy dqcofs — xy ddqcof s ~ o 



cuins integrale eft : 



— c xxdp^r —^yydq-\- f .ydx—xdy)fm.s-xy(dp J srdq)coCs 



zzz ct-d L. 



C o r o 1 L 2.. 



17. Si haec ad motum Lunae transferre veli- 

 mus , in A terra conftituatur et B pro fole, C ve- 

 10 pro Luna habeatur- Cum autem magnitudo 

 maffae Lunae non in computum veniat ,. fiquidem 

 ad perturbationem motus terrae inde oriundam hic 

 non refpicimus y facto C— a r has habebimus aequa- 

 tiones •.: 



I. ddx-xdp*+\dt\ ~zzol „ rr 

 tt j j. , jj C pro motu folis 



II. idxdp-\-xddp~o 5 r 



IIL ddj-ydf4-\dn^^^^)-ol^ motu 

 IV- zdjdq+yddq+tft*^^ - ^rJ=0 Jtonae- 



Y 3 Coroli 



