/ 
) o { m 
pe harnm æquationum quærendam effe affumere. 
Hoc aiitem confilio vocando anomaliam hanc ve- 
ram ellipticam r, & excentricitatam habetur öf/j 
(i — k")^dr ^ I — 
— — — , li ponatur 
(i— ÆCof. r)2 I — -^Cof.r 
t. Hunc valorem ipfius dp adhibendo, revocan- 
tur reliqua difFerentialia ad r, ita ut fit ds 
î'^dr ^i- — ee ^ ^ \ 
= d0, & d?j= ==■.( ) 
nnj 
nrp 
dr, ^ i ' — ee 
foret z = 
nw^ /i — kk 
i^kk 
. Jam in cafii motus elliptici 
, fcu z = t. Quoniam vero 
I — k Cof. r 
motus Lunæ verus ab hoc motu aberrat ponit z = 
tu = 
I — k Cof. r 
,u I — kk , au 
y {qu X = — 
k Cof. r 
Hinc 
dz 
quoniam dp efl: conflans erit ddz =i dp . d . — , & 
dp 
ddz I dz 
= — . d . — , quo obfervato aequatio ultima 
dp^ dp dp" ^ ^ 
^ I dz CC 2CS SS 
fiet — . d , — = h •— 
dp dp 
( I — I Tang, -{- I Tang, Cof. ( 2(p 
m 
— "2 7r) -f- 
u tu 
J j_ 
nn intiyp^ 
3 tu Cof. 2 q 
+ ; -f< 
2nnxf>^ 
%nn-R)^ 
VOL. IV. 
( 3 Cof 3 j 4 * 5 Cof 3 J?). 
Nn 
5:0 
