[ 3>2 ] 
St* " i ; et, quia inclinatio orbis QN ad orbem P N 
cxigua fupponitur, erit etiam hie ang. PSQ_— ~-s 
quamproxime j proindeque, pofito arcu CNr«, erit 
QN j a et PN = s — -^s a quamproxime. 
Porro, cum lentifiime moveantur nodi, arcus C N 
fpedari poteft quad invariabiiis per multarum planetaa 
Qjevolutionum feriem, atque adeo fluxio arcus QN 
eadem erit cum fluxione arcus QC. His pofitis, ha- 
bebitur fin. PN X fin. QN — 4- cof. — 4- c °f* 
s 2 a, efique per propofitionem primam 
■ -4- S cofi — s 4- T 
P 1 n 1 
<pk tf> <pk . _ 
? — F = 7 lnR 
cof. - s 4- V cof 1 s 4- W cof - s 4-, Sec. unde 
n 1 n 1 n 
fubftitutis his valoribus in asquatione N « = QT 
X fin. PN X fin. QN X Q?, et fumpta fluente per 
methodum in Coroll. IV. lemmatis edodam, pro- 
dibit fumma omnium N n , five motus nodi, quo 
tempore planeta QJi loco conjundionis C procedens 
in orbe fuo deferipferit arcum CQ, acqualis ■ * * ” in 
b , r> t , 1 C 1 i 
~ ■ s -4- R. — —pr 4- — x fin. — s -b 
2 n ' k % 1 2 n 1 
S +.V 
fin. — s 
n 
T + W 
fin. 
4 1 +, See. + 
<pk 11 
2 / 3 
in Z X fin. 2 a 
6 
