Also 



1 M - 

 - 



A 



THEORY OF JUPITER'S SATELLITES. 



M 



181 



I +- -,=1-0000000834, 



hence n,V=l '0006831 343, 



These results give 



- = 1-0000003359; 

 ,V 3 = 1-0002947645. 



-, = 0-6285146, 



Co 



which agrees pretty closely with the value assumed for a for these two 

 satellites. 



Now let us compute the values of ,, g it a', g{ for the values i=l, 2, 3, 4. 

 The equations are 



I-M/ A- Ar-n m ' [ dAi 2n . 1 

 [r (n - n') 1 - N-] ; = -y-^ + - ,A { \, 

 a- \_ da n n' J 



2n 



I mf . 

 * *' 



where 



First compute N~/n-. 

 I and II 



- 

 o j 2 \ 



I and III 



I and IV 



0-000022395 



0-000011146 



0-000000792 



