Full text: Theoria motus corporum coelestium in sectionibus conicis solem ambientium (7. Band)

DETERMINATIO ORBITAE E QUATUOR OBSERVATIONIBUS. 
213 
(yToO’ (7)12)’ (7)23) quotientes e divisione arearum \{n01), i(n 12), i(«23) 
per areas sectorum respondentium oriundi. 
p' (h12) p" (w!2) 
(«01)’ (w 23) 
v, v\ v\ v" corporis coelestis longitudines in orbita a puncto arbitrario 
numeratae. 
Denique pro observatione secunda et tertia locos heliocéntricos terrae in 
sphaera coelesti per A, A' denotabimus, locos geocéntricos corporis coelestis 
per B', B\ eiusdemque locos heliocéntricos per C\ C". 
His ita intellectis negotium primum perinde ut in problemate Sect. praec. 
(art. 136.) consistet in determinatione situs circulorum maximorum AC'B\ 
AC" B", quorum inclinationes ad eclipticam per y\ y" designamus: cum hoc 
calculo simul iungetur determinatio arcuum AB A=h \ AB" — 6 . Hinc mani 
festo erit 
r'= |/(p'p2 p'i^'cosò'-l- B'B) 
sive statuendo 
r = i/Vp"+ 2p"iTcos6"+irir) 
p'~{-J7'cos8'— x\ p"-j-i2"cos6"= x\ B sin8 = a , 
r' = \J{x'x'A a ' a ) 
r"= \J{x"x"~\-a" a) 
T)" • 5> " 
K smò = a 
n 
1 
168. 
Combinando aequationes 1. et 2. art. 112., prodeunt in signis disquisitionis 
praesentis aequationes sequentes: 
0 = (n 12) B cos B sin (l — ct) — (n 0 2) (p'cos 6 ' sin (a '— a)-\- B' cos B ' sin (T— a)) 
-j- (n 01 ) (p'cos 8 "sin (a"— a) A B" cos B "sin (l ' — a)) 
0 = (n 23) (p'cos 6'sin (a'"—a') -J- B ' cos B ' sin (a —V)) 
[ni 3) (p"cos6"sin(a"'— a") -f-iTcosi?"sin(o"'- 1")) -|- (ni 2)iTcosiT'sin(a'"—V")
	        
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