[ 120 ] 
Obferved ze- j 
nith diftance ot j 
Arfturus. 
Baro- 
meter. 
Ther- 
mome- 
ter. 
Refrac- 
tion. 
Aber- 
ration. 
Nuta- 
tion. 
Precef- 
fion. 
1772. 
O 
/ 
// 
// 
// 
ff 
// 
July 11. 
3 1 
2 1 
53 > 6 
29,87 
73 
32,9 
+ 9)4 
4 - +9 
— 10,1 
Aug. 11. 
3 1 
21 
56,6 
29,91 
64 — 
33,8 
ft 12,2 
+ 2,1 
— 11,7 
17 - 
50,6 
29,93 
75 + 
32,8 
+ 12,2 
+ 2,1 
12 
19. 
54*6 
29,76 
77 — 
3 2 >S 
+ 1 2,3 
+ 2,2 
— 12,1 
Oft. ib. 
3 1 
21 
58,1 
29,99! 
61 
34,2 
+ 7)7 
4* 2)6 
— M’ 1 
Nov. 2. 
3 i 
22 
3.3 
29 > 3 2 5 
49 — 
34-5 
+ 4)4 
+ 2)7 
— 16 
7 - 
22 
3-5 
29,23 
49 
34,3 
+ 3)8 
+ 2-7 
— 16,3 
12. 
S >3 
29,82 
38 
35)9 
4 “ 2)1 
+ 2,7 
— 16,3 
20. 
3 1 
22 
12,3 
29,83 
46 + 
34 ) 1 
4" 0,4 
4 - 2,7 
— 16,9 
21. 
10,3 
29,30 + 
40 — 
35-4 
+ 0,2 
+ 2,7 
— l 7 
23- 
1 r »3 
2 9>37 
40 
35)2 
— 0,2 
+ 2,7 
— 17,2 
Dec. 10. 
29,62 
39 ? 
35)7 
— 3)9 
+ 2,9 
— 18 
16. 
3 1 
22 
12,3 
29,69 
45 ? 
35 )i 
— 5 
+ 2,9 
— 18,3 
Mean zenith diftance of Arfturus, January i, 1772 
PrecelTion to June 21, 1772 • 
Mean zenith diftance of Arfturus, June 21, 1772 
Error of the line of collimation 
True mean zenith diftance of Arfturus, June 21, 1772 
Mean zenith diftance of the Sun’s center, June 21, 1772 . . . . . 
Mean diftance of Arfturus in declination from the Sun’s center, J 
June 21, 1772 . .J 
Obfervations 
reduced. 
o / n 
31 22 27,7 
33 
2S>7 
29,5 
27,2 
28,9 
28 
3 M 
31 22 32,6 
3^6 
3 1 ) 8 
32 
3 i 
22 
27 
3 i 
22 
29,3 
+ 
9 
3 i 
22 
38,8 
+ 
4.2 
3 r 
22 
43 
28 
17 
5)4 
3 
5 
37)6 
0 t ft 
Mean diftance in June 1690 . . 2 40 12,8 
Preceflion, &c. to June 1772 . . 26 16,4 
Computed diftance in June 1772 . 3 6 29,2 
Obferved diftance in June 1772 . 3 3 37,6 
Diminution of obliquity in 82 years 5 1,6 
From 
