) o c m 
Sin. 
(= 
Sin. I {PS + PZ) Sin. } SPZ> 
Cof. 4 - (p + D) Sin. 
Cof. i (t- ty J 
Cof. 4 (<r— *) > Ccfr. Dis/, äe invemtn. 
da longitudine loci ex obfervata diflantia Lunæ a 
ßella quadam . 1793. Part. /. jf. 4 )i hac enim 
ratione calculas aliquanto brevior fit, & pauciori- 
bus Logarithmis evolvendis opus eft. 
Quum jam (§. 2.) dati fine anguli PSE = a 
& EOT - / 3 , datur etiam ang. PSTl = a dz ß= s, 
& hinc porro ang. IlS’Z = ip dz s = v 9 in quibus 
angulis s & v determinandis ut omnis confufio & 
lignorum ambiguitas evitetur, confultisfimum eft, 
figuram pro quovis cafu fpeciali ad modum Fig. 4. 
delinearam ob oculos habere, ex qua politio pun- 
ftorum 5 *, Z, P, E 9 N & ÏÎ pro qualibet obfer* 
vatione appareat. 
Sumto jam in circnlo verticali SZ ab S ver- 
fus Z arcu SQ = 7r Sin. 2 & (Tab. XL Fig . 7. 8) 
ex g in demisfo perpendiculari QK , duftoque 
gn orb tæ lunæ occurrente in Ni, invenitur QK 
— MN — 7T S in. 2 Sin. u, & = tt Sin. 2 Cof. v. 
Hinc innotefeit ipforum SIS (= y) & 1 SK diffe- 
rentia (vel fumma, pro diverfo litu pun&orum 
IV, K & S') = iV/C = gM = unde porro 
exiftente L îoeo lunæ vero pro tempore iftius 
obfervationis , adeoque LQ = A r= eruitur 
IM = — q* = J/(A + q) (à — ?), 
vel fi prius quaeratur ang. LgM = Cp, cujus in 
feqq. pro calculo correctionum ufus eft, erit 
Cof. Q = ~ & LM 
A Sin. 0, 
Has 
