IN PHYSICAL ASTRONOMY. 
43 
(2»^( r 3 r 1 f4j + a flfa= o 
a- l J P 
<!^iaS{r«-»r.}-r. + S. fa = 0 
( 4 !t ^4 5 L»f 4>+ 5 i„,„ = 0 
n- L p 
(a + w,) 2 
a 2 
- |- r 2o} “ r 46+ ^ « 946 = 0 
{r„~h,}-,, + a. f „- 0 
(3n — 3 a,) 2 
Tir 
(4 n 
-2 a,) 2 
a 2 
(5 a 
-5 a,) 2 
a 2 
(6 a 
— 4 a,) 2 
a 2 
(«“ 
-0 2 /r 
a 2 L 
(2 a 
-4 a,) 2 
n 
(3 a 
— 5 a,) 2 
a 2 
(4 a 
-6 a,) 2 
a 2 
{^49 “ r « + 5 a ^=0 
l^oO— r is| — r 50+ ^ a ?5O=0 
{^-W-^ + | a ^ = 0 
| r 52 “ r 52 + ^ ® 9 52 = 0 
53 -|^}-^+^^=0 
|r 54 - r 22 | - r 64 + ^ o ^ 4 = 0 
{*•55 -r 55 + -^a ?55 = ° 
^6 -^6 + ”^956 =0 
P 
4 a, 2 
a 2 
(m + a,) 2 
n 2 
(3 a — a,) 
a 2 
, WZ, n 
■ r„ + -r a 7« = 0 
P 
^58 _ ^ fl ?58 = 0 
P 
2 , Wi n 
"^60 — r 60 + — '« 5 , 60 =° 
V* 
(4n — 2 «^% 6i 
a 2 
, m, 
^61 H" • — a 961 
P 
0 
(5 n — 3 a,) 2 
5? r62 
(n — 3 a,) 2 . 
7g 5 — 
, Wl, A 
— r 62 + a 9(52 — ® 
P 
, 771/ a 
■ r 63 + — ' a 9 62 = 0 
P 
Equations 
which serve 
to determine 
the coeffi- 
cients of the 
inequalities of 
the reciprocal 
of the radius 
vector. 
ri 
G 2 
