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DETERMINATIO ORBITAE E QVATVOR. OBSERYATIONIBTS.

JJ)5

r \/ (x'x' + a a)

U / / li H . II ir v

r =y [x x 4 -a a )

168.

Combinando aequationes 1 et 2 art. 112, prodeunt in signis disquisitionispraesentis aequationes sequentes:

0 (n 1 2) R cos B sin (/ ct) (/1 02) ((/ cos fi sin (a «) + R cos B' sin (l' «))+ ( «02 ) ((/' cos fi' sin (a ct) + B." cos B" sin (Z"

o = (ri 23 ) ((/ cos fi sin (a" a) + R' cos B ' sin (ct'" /')) - (n 1 3 ) ((/'cos fi' sin (a- a")+ R" cos B" sin (et /")) + (n 12) i? cos sin ( a" t" )

Hae aequationes, statuendoR? cos B' sin (/' a)

cos fi sin (a' a)

R" cos /i" sin (a" Z")

cos fi' sin (a a")i?' cos B sin (a f)cos fi sin (a" a')R' cos B" sin (Z" ct)

R' cos S'=b'

i?" COS (5* = 5"

cos fi sin x a' «)g cos B sin (l ct)

R' cos (£' = x K cos d = x

cos fi sin (a" «)iZ 1 " cos g' " sin («"' Qcos fi sin (a" « )

cos fi sin (ct' a) ,

7P t " B'

cos p sin (a ct )

cos p sm (ct a ) _ v

/ i" '\ B* .

cos p sin (ct ct )

omnibusque rite reductis , transeunt in sequentes

^ + x + ;p i

1 +

1 +

(x'x' -f CLCl) *"(14 -P")(x" + b")

Q"

= *' + *'4.

/ n n , n ff\ i

(xx 4 - a a

1