[ 3 °® ] 
‘The following are Obfervations made at the Points N, and near P, in the Year 1764 : 
But the Length of Time between thefe, and thole made at A, being near three Years — 
probably the Set made at N, in December 1766, may be bell to be uftd in deteimining 
the Length of a Degree of Latitude. 
# • 
STAR’S 
ZENITH 
DISTANCES. 
SECTOR 
IN 
THE 
TENT, PLANE EAST. 
1764. 
y 
Andromeda:. 
(3 Pcrfei. 
« Perfei. 
o' Perfei. 
G 
/ 
ft 
0 / rr 
O / // 
January. 
17 
1 
15 
0,0 
0 5 40 0 
7 4 29,5 
19 
0 5 39 - 6 
7 4 3 ‘-o 
20 
1 
J 5 
2,2 
0 5 39 »° 
9 3 47 »° 
7 4 5 °» 2 
21 
1 
J 5 
M 
0 5 37-5 
9 3 49-7 
7 4 3°, 8 
22 
1 
1 5 
1,2 
0 5 38,0 
7 4 3 1 >° 
Mean, January 
20 
1 
*5 
1,2 
0 5 3 S, S 
9 3 48 , 3 . 
7 4 3°-5 
Aberration dedin. 
— 
10,0 
— 9,1 
— j i ,4 
— 10,4 
Deviation D° 
— 
3 -3 
— 5-7 
— 6,2 
— 6,7 
Precefs. fr. ijan. 1764. 
— 
1,0 
— 0,8 
“ °*7 
— 0,7 
Refradion 
1.4 
+ 0,1 
4- 10,5 
4" 8,3 
Obfervatory S° of Tent 
+ 
°-3 
+ 0,3 
4- 0,3 
+ °-3 
Mean zen. did. 1 Jan. 1764 
1 
1.4 48,6 
Q 5 23,6 
9 3 4 °> s 
7 4 21 >3 
SECTOR IN 1 
T II E 
OBSERVATORY, 
PLANE WEST. 
January 
26 
1 
13 
4-7 
0 
5 - 4 1 > 7 
7 
4 32, 8 
% 
27 
1 
15 
5-7 
0 
5 
41,0 
9 3 57 -o 
28 
1 
1 5 
4-5 
0 
5 44 -o 
9 3 57-5 
7 
4 33 ,o 
29 
1 
*5 
5-5 
0 
r 
5 
44,0 
9 3 55-3 
7 
4 32,7 
Mean, January 
3 7i 
1 
15 
5 - 1 
0 
5 
42,7 
9 3 5 6 - 6 
7 
4 32 , S 
Aberration in Declin. 
— 
9,0 
— 
8,6 
— 1 1, 1 
— 
10,3 
Deviation D° 
— 
3 >3 
— 
5-7 
— 6,2 
— 
6 -7 
Precefs. from 1 Jan. 1764 
— 
i *3 
— 
— 1,0 
— 
0,9 
Refradion 
+ 
1-4 
4 - 
0,1 
+ 10 >5 
+ 
8 >3 
Mean zen. did. 1 Jan. 1 764 
1 
52.9 
0 
5 
27-4 
9 3 4 8 - 8 
7 
4 23,2 
D° Plane Eaft 
1 
14 48,6 
0 
5 
23,6 
9 3 4 °- 8 
7 
4 21,3 
True zen. did. at the point 
N, 1 Ian. 1764. 
1 
14 50,8 
0 
5 
25.5 
9 3 44 - 8 
7 
4 22,2 
Precefs. to Od. n, 1766 
+ 
AQ.A.C 
40,56 
+ 
34, 6i 
- 
7 4 5&- S > 
Reduced to Oft. ji, 1766 
j 15 40,25 o 6 6,c6 
