386 
Mr. Pond on the North Polar Distances 
I. 
Standard Catalogue of the North Polar Distances of thirty principal fixed Stan, 
reduced to the beginning of 1813 . 
Stars. 
No. of Ob- 
servations 
in former 
Catalogue. 
Resultofone 
year’s obser. 
N. P. D. 
January i, 
1813. 
Total No. 
of Observ- 
ations. 
Result of two 
year’s observ. 
N. P. D. 
January i, 
1813. 
Mean height 
of barome- 
ter. 
Mean height 
of thermo- 
meter. 
In. 
Out. 
I 
Polaris 
167 
0 / k 
1 41 21.7 
2 94 
0 ✓ u 
1 41 21.66 
O / 
29 79 
O / 
49 0 
0 t 
48 0 
2 
(3 Urs. min. 
9 ° 
15 4 48.9 
120 
15 4 48. 9 
29 73 
50 7 
50 5 
3 
0 Cephei 
40 
20 15 30.7 
70 
20 15 30. 6 
29 77 
49 2 
45 5 
4 
a . Urs. maj. 
60 
2 7 H 3 i -5 
70 
27 14 31. 5 
29 81 
56 0 
55 0 
5 
a . Cephei 
40 
28 12 12.5 
70 
28 12 12. 5 
6 
a . Cassiop. 
40 
34 2 9 22 -7 
70 
34 29 22. 6 
7 
y Urs. maj. 
48 
35 »5 55-3 
60 
35 15 55 - 3 
8 
y Draconis 
90 
38 29 3.6 
140 
3 8 2 9 3 * 6 
9 
v ) Urs. maj. 
80 
39 44 57-9 
100 
39 44 57 - 8 
10 
a . Persei 
40 
40 48 52.7 
5 ° 
40 48 52. 6 
11 
Capella 
80 
44 12 20.5 
1 10 
44 12 20. 4 
12 
a . Cygni 
70 
45 22 56.9 
130 
45 22 57 * 1 
2 9 77 
46 8 
43 4 
13 
a . Lyrae 
90 
51 23 0.5 
170 
5 1 2 3 °-5 
29 82 
5 1 0 
49 5 
H 
Castor 
30 
57 4 2 4 6 -7 
40 
57 4 2 46 - 7 
29 81 
50 4 
48 4 
*5 
Pollux 
40 
61 31 56.3 
5 ° 
61 31 56. 4 
29 95 
50 0 
49 2 
16 
0 Tauri 
So 
6 * 33 43-7 
70 
6 i 33 43 - 7 
29 92 
46 3 
44 4 
*7 
a . Androm. 
35 
61 56 29.6 
35 
61 56 29. 6 
29 88 
54 2 
53 1 
18 
a . Cor. Bor. 
80 
62 3 8 55-4 
90 
62 38 55. 4 
29 80 
56 8 
56 2 
*9 
a . Arietis 
5 ° 
67 25 36.5 
80 
6 7 23 3 6 - 5 
29 8 5 
43 3 
4 ° 3 
20 
Arcturus 
80 
6q ;o IQ. I 
120 
6q <;o iq. 0 
29 82 
55 0 
54 9 
21 
Aldebaran 
5 6 
73 5 2 35-4 
7 6 
73 5 2 35 - 3 
29 91 
50 7 
5 ° 3 
22 
0 Leonis 
20 
74 22 57-3 
20 
74 22 57 - 3 
29 81 
65 4 
62 4 
2 3 
* Herculis 
5 ° 
75 2 3 H-o 
5 ° 
75 2 3 H- 0 
29 88 
57 4 
55 9 
24 
a . Pegasi 
20 
75 47 5 *-7 
30 
75 47 5 1 • 6 
29 69 
48 3 
44 4 
2 5 
Regulus 
65 
77 7 22 -7 
6 5 
77 7 22 - 7 
29 8 9 
54 7 
54 5 
26 
66 Ophiuchi 
70 
77 »7 39 - 2 
90 
77 17 39 - 1 
29 86 
56 4 
54 3 
2 7 
a . Aquilae 
80 
81 36 <;8.8 
140 
81 36 58. 8 
29 81 
51 0 
46 0 
28 
66 Orionis 
50 
82 38 15.7 
60 
82 38 15. 7 
29 96 
53 5 
53 3 
2 9 
a Serpentis 
70 
82 5 8 39-3 
70 
82 5 8 39 - 3 
29 86 
5 8 3 
57 3 
3 ° 
Procyon 
40 
84 18 14.4 
4 ° 
84 18 14. 4 
29 96 
55 4 
55 4 
3 i 
Polaris SP. 
29 79 
59 1 
52 2 
