and proper motion of thirty fixed Stars. 
387 
II. 
Observations made with the Mural Circle , compared with the observations 
of Dr. Bradley in the year 1756. 
Stars. 
N. P 
begin. 
D. 
1 75 6 * 
N. P. D. 
begin. 1814. 
Variation in 
58 years. 
Precession 
in 5 8 years. 
Difference. 
1 
Annual 
Proper 
Motion. 
• 
/ 
ft 
0 
/ 
a 
/ 
I) 
/ 
a 
/ tl 
n 
I 
Polaris 
2 
(3 Urs. min. 
*4 
5 ° 
47-4 
15 
5 
3-6 
+ 14 
16.2 
14 
10.4 
0 5.8 
4- 0.100 
3 
£ Cephei 
20 
3 ° 
26.2 
20 
15 
15.0 
— 
15 
1 1.2 
*5 
77 
3-5 
— 0.060 
4 
cc 
Urs. maj. 
26 
56 
185 
27 
H 
50.7 
+ 
18 
32.2 
18 
27-3 
4.9 
-f 0.084 
5 
cc 
Cephei 
28 
26 
27.9 
28 
1 1 
57.6 
— 
14 
3°-3 
*4 
27-3 
3.0 
— 0.052 
6 
cc 
Cassiop. 
34 
48 
14.5 
34 
29 
2.9 
— 
19 
1 1.6 
*9 
”7 
0.1 
-f 0.002 
7 
7 
Urs maj. 
34 
5 6 
57.8 
35 
16 
1 5-3 
+ 
19 
* 7-5 
*9 
17.2 
°-3 
4- 0.005 
8 
7 
Draconis 
38 
28 
22.0 
38 
29 
4-3 
+ 
0 
42.3 
0 
42.2 
0.1 
4- 0.002 
9 
V) 
Urs. maj. 
39 
27 
4 ° 4 
39 
45 
16.1 
+ 
*7 
35-7 
«7 
33-9 
1.8 
+ 0-031 
10 
cc 
Persei 
4 1 
1 
47.2 
40 
48 
39-2 
— 
13 
8.0 
*3 
7.6 
0.4 
— 0.007 
1 1 
Capella 
44 
16 
5 i -5 
44 
12 
15.9 
4 
35-6 
4 
56.4 
20.8 
+ 0.358 
12 
cc 
Cygni 
45 
34 
52.4 
45 
22 
44-3 
— 
12 
8.1 
12 
2.8 
5-3 
— 0.091 
13 
cc 
Lyrte 
5 * 
25 
47.1 
5 1 
22 
57-4 
— 
2 
497 
2 
29.9 
19.8 
— 0.341 
H 
Castor 
57 
3 6 
10.7 
57 
42 
53-8 
+ 
6 
43 - 1 
6 
40.7 
2.4 
4- 0.041 
*5 
Pollux 
61 
24 
28.4 
61 
32 
4-3 
+ 
7 
35-9 
7 
34 -* 
1.8 
4- 0.031 
16 
13 
Tauri 
61 
37 
3°*9 
61 
33 
39-8 
— 
3 
51.1 
3 
57-9 
6.8 
+ 0.117 
17 
cc 
Androm. 
62 
*5 
27-3 
61 
5 6 
9.6 
— 
*9 
*77 
*9 
20.4 
27 
+ 0.047 
18 
a 
Cor. Bor. 
62 
27 
0.2 
62 
39 
7-9 
+ 
12 
77 
12 
4-3 
3-4 
4- 0.058 
*9 
cc 
Arietis 
67 
42 
12.9 
67 
25 
19.1 
— 
16 
53-8 
16 
57-4 
3 - 6 
4- 0.062 
20 
Arcturus 
69 
32 
13. 6 
69 
5 ° 
38.1 
+ 
18 
24.5 
16 
30.0 
* 54 -5 
4 - I- 97 2 
21 
Aldebaran 
74 
0 
15.4 
73 
52 
27.4 
— 
7 
48.0 
7 
539 
5-9 
4- 0.102 
22 
13 
Leonis 
74 
3 
55 - 6 
74 
23 
17-3 
+ 
*9 
21.7 
*9 
15.4 
6-3 
4- 0.109 
25 
CC 
Herculis 
75 
18 
46.1 
75 
23 
185 
+ 
4 
324 
4 
364 
4,0 
— 0.069 
24 
cc 
Pegasi 
76 
6 
10.6 
75 
47 
32-3 
— 
18 
38-3 
18 
32.9 
5 4 
— 0.093 
25 
Regulus 
76 
5 J 
5 i 
77 
7 
40.0 
+ 
16 
35 -° 
16 
37.1 
2.1 
— 0.036 
26 
cc 
Ophiuchi 
77 
H 
35-9 
77 
17 
4 2 -3 
+ 
3 
6.8 
2 
56.9 
9-5 
+ 0.164 
27 
cc 
Aquilae 
81 
45 
27.8 
81 
36 49.6 
— 
8 
38.2 
8 
11.4 
26.8 
— 0.462 
28 
cc 
Orionis 
82 
39 
4 2 -3 
82 
38 H -3 
— 
1 
28.0 
l 
23-3 
4-7 
— 0.081 
29 
oc 
Serpentis 
82 
47 
24.7 
82 
58 51.0 
+ 
ll 
26.3 
11 
3*7 
5-4 
— 0.093 
3 ° 
Procyon 
84 
10 
10.3 
84 
18 
21.9 
+ 
8 
1 1.6 
7 
14.7 
56.9 
4- 0.981 
The N. P. D. of Polaris determined by upwards of 200 observations of Dr. Bradley, by 
computations made under the direction of Dr. Maskelyne, a short time before his death, and 
reduced to the beginning of the year - - 1749 - z° 2' 17". 25 
By my observations for - - 1813 - 1 41 21 .75 
Variation in 
Precession for 
64 years 
64 years 
20 55 .50 
20 51 .83 
Difference - - - - - - - 3 .67 
Annual proper motion - —0.057 
i. e. The annual precession, which is itself negative, must be increased by the above 
quantity. 
