DETERMINATIO ORBITAE E TRIBVS OBSERVATIONISVS COMBRETIS.

Calculo facto iam inueniraus

l 79

Ascens. recta punctorum

7(, X, A"

235 ° 54 ' 5 7 " 10

253 ’ 8' 5 7 " 01

/ //

7 > 7

5 1 17 10,74

90 1 3 , 19

A, A', A"

21 5 58 49,27

212 52 48 , 96

S, S', S"

56 26 54 , 19

55 26 5 i, 79

7i'D , aiy, 7iir

25 54 52 , i 5

5 o 18 3 , 2 5

%"£>, &'D”

55 5 26, 55

5 i 5 g 21, i 4

f tr

e, e , e

47 1 54 , 6g

89 54 57, 17

^logarithmi sinuum

g, 8645525

9>9999885

log sin i s

9,8478971

log cos i s

g, 85 io 6 i 4

276° 4 o' a 5 " 87i 5 i 5 g 58 , o 3220 g 12, g669 10 57, 8429 8 43 , 02

22 20 6,91

42 53 4 i, 17g,8001910

In calculo art. i 38 pro l' ascensio recta puncti 71 ' adhibebitur. Sic iuuenitur

log Ts in t .8,4868256 n

log T cos t .9,2848162 n

Hinc t = 189° 2' 48 " 83 , log 7 '= 9,2902827; porro t -\-y ~ 279 0 5 ' 52" 02,

1 OgS. . .9,01 io 566 n

log 7 ’sin (t+y ;9,2847950 nvnde A' —<7 = 208° 1' 55 " 64 , atque 17= 4 ° 5 o' 55 " 52 .

In formulis art. i 4 o pro a, b et — ipsos sin < 5 , sin S', sin (V' retinere opor-tet, et perinde in formulis art. i 42 . Ad hos calculos habemus

71 'D '— A" = 171° 5 o' 8" 18 log sin.g,i 5235 o 6 log cos.

%D' —A = 174 19 15,98 8,9954722 .

7 S!'D — A" =: 172 54 i 3 , 5 g .9,0917972

WD — A '+(7 = 176 52 56 , 4 g . 8 ,S 56 i 52 o

HD "—A = 175 g 54 , o 5 .9,0755844

7 £D" A'+<t= 174 18 11,27 .8,9967978

Hinc elicimus

10709 n.9,9978629 n

logx

= 0 , 921 l 85 o,

logi?

= 0,0812087 n

log x"

= 0,811276^,

io g r

= 0,0519691 71

log a

= 0,1099088,

a —

+ 287979°

logi

7

= o,i 8 io 4 o 4

= o, 07 ii 5 i 4 ,

vnde

fit logi = o,i8io4o2. luter hos duos valores