26 
ASTRONOMICAL OBSERVATIONS, 
APPENDIX A—Continued. 
CAMP 8] A—NOVEMBER 10, 1855. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
Object observed. 
Time of observ’n 
by chronometer. 
Observed double 
altitudes. 
* 
h. 
7)1. 
s. 
d. 
m. 
5. 
» Lyr® .... 
7 
17 
26.0 
103 
n 
20 
7 
18 
19.5 
102 
51 
00 
7 
19 
00.0 
102 
37 
10 
7 
19 
49.5 
102 
18 
50 
7 
21 
04.0 
101 
51 
30 
7 
22 
10.5 
101 
27 
40 
Polaris................ 
7 
24 
22.5 
85 
14 
00 
•7 
25 
14.5 
85 
14 
30 
7 
26 
34.5 
85 
15 
20 
7 
27 
15.5 
85 
15 
30 
7 
28 
05.5 
85 
16 
00 
7 
29 
00.0 
85 
16 
20 
Index error, V 20". Barometer, 27.0 in. Thermome¬ 
ter, 35°. 
CAMP 85 A—NOVEMBER 14, 1855. 
Observer —Lieut. H. L. Abbot, U. S. Top. Engineers. 
Object observed. 
Time of observ’n 
by chronometer. 
Observed double 
altitudes. 
h. 
m. 
S. 
d. 
m. 
a Lyr®. 
7 
51 
38.5 
83 
50 
00 
7 
52 
52.0 
83 
23 
50 
7 
53 
45.5 
83 
04 
20 
7 
54 
34.0 
82 
47 
30 
7 
55 
42.5 
82 
22 
40 
7 
56 
34.5 
82 
04 
30 
Polaris ............... 
8 
18 
17.5 
83 
48 
20 
8 
19 
21.5 
83 
48 
30 
8 
20 
24.0 
83 
48 
50 
8 
21 
08.0 
83 
49 
10 
8 
21 
52.0 
83 
49 
40 
8 
22 
37.0 
83 
50 
00 
8 
23 
52.0 
83 
50 
20 
8 
24 
41.5 
83 
50 
30 
8 
25 
32.5 
83 
50 
50 
8 
27 
37.0 
83 
51 
10 
Index error, ~f- 0' 30". Barometer, 28.9 in. Thermome¬ 
ter, 43°. 
