of a Comet , 
497 
table hi. Angle of pofition of the Comet with regard to the 
parallel of declination of the fame telefcopic. fixed ftars mea- 
fured by a micrometer, of which I have given the defcrip- 
tion, and a magnifying power of 278. See fig. 1. 2. 3. 4. 
5. 6. 
D. H. M. 
Mar. 13 10 30 
17 11 0 
18 8 20 
— 9 2 4 
*9 7 2 3 
21 10 10 
— 11 48 
B a. Comet, 
A a. Comer, 
fig, 1 *. 
o r m 
Q q! by fuperncial eftimation, liable to an error 
J of 10 or 12 degrees. 
89 56 by the micrometer. 
56 39 
41 33 true to i°. 
29 47 true to i®. 
1 1 46 true to 4 or 5®. 
12 14 
24 8 23 
— 11 4 
25 7 33 
— 9 55 
26 10 53 
28 7 58 
B/3 Comet, 
fig. 2. 
A (3 Comet. 
38 39 true to 2 or 3 0 . 
36 14 true to 3 or 4 0 , air very tremulous. 
53 X B 
56 32 liable to a confiderable error. 
87 0 true to 2 or 3 0 . 
28 51 true to 3 or 4 0 . 
29 9 25 
30 8 25 
•Apr. 1 7 55 
B y Comet, 
%• 3- 
Ay Comet, 
32 19 true to 1 or 2°. 
72 14 true to 3 or 4 0 . 
28 Ci well taken, 1 « ,, A ^ 0 
3 n 5 27° 46', true to i°. 
27 14 more exact, J 7 ^ ? 
6 8 28 
B £ Comet, 
fig. 4. 
84 42 true to kfs than 2 0 
' 
, 15 10 27 
16 8 1 
— i° 55 
18 8 31 
Be Comet, 
%• 5- 
At Comet, 
29 9 true to 2 or 3 0 . 
49 1 1 true to i°. 
30 47 true to if or 2°f. 
*7 9 very well taken, 1 4? o true to lefs tkani .. 
46 35 pretty well, J 
- 9 8 
19 8 56 
— 10 45 
B f Comet, 
A £ Comet, 
fig. 6. 
82 39 
I9 } 4 9° 3% to I s . 
47 30 true to 2 or 3 0 . 
* The angles are drawn true to the meafure, without allowing for errors. 
T 1 1 3 Mi fed- 
