24 
ASTRONOMICAL OBSERVATIONS. 
APPENDIX A—Continued. 
CAMP 70 A—OCTOBER 26, 1855—Continued. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
Object observed. 
Time of observ’n 
by chroncmeter. 
Observed double 
altitudes. 
h. 
m. 
s 
d. 
m. 
s. 
Polaris. 
7 
15 
20 
0 
89 
22 
50 
7 
16 
19 
0 
89 
23 
20 
7 
17 
03 
5 
89 
24 
10 
7 
18 
01 
5 
89 
25 
no 
7 
19 
06 
5 
89 
25 
40 
Jupiter. 
7 
57 
23 
0 
61 
51 
10 
7 
58 
03 
5 
61 
52 
10 
7 
58 
51 
0 
61 
52 
20 
7 
59 
44 
O 
61 
52 
40 
8 
00 
44 
0 
61 
53 
20 
8 
01 
39 
5 
61 
54 
40 
8 
02 
44 
0 
61 
55 
00 
8 
03 
46 
5 
61 
55 
20 
8 
04 
33 
5 
61 
55 
20 
8 
05 
34 
0 
61 
55 
00 
8 
07 
51 
5 
61 
54 
50 
8 
09 
06 
0 
61 
54 
50 
8 
10 
02 
0 
61 
54 
10 
8 
10 
52 
0 
61 
53 
40 
8 
11 
46 
0 
61 
53 
20 
8 
12 
42 
0 
61 
52 
40 
8 
13 
26 
0 
61 
52 
00 
8 
14 
19 
5 
61 
51 
10 
Index error,+ 0'50”. Barometer, 29.6 in. Thermometer, 
380.5. 
CAMP 71 A—OCTOBER 27, 1855. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
h. 
m. 
s. 
d. 
m. 
s. 
tj Pegasi. 
7 
24 
38.5 
133 
50 
50 
7 
26 
01.5 
134 
17 
20 
7 
27 
16.5 
134 
41 
50 
7 
28 
26.0 
135 
04 
10 
7 
29 
25.0 
135 
22 
30 
7 
30 
24.5 
135 
41 
20 
a Lyroo. 
7 
34 
03.5 
118 
42 
10 
7 
35 
05.0 
118 
20 
30 
7 
36 
07.5 
117 
58 
20 
7 
37 
05.0 
117 
35 
50 
7 
38 
01.0 
117 
16 
20 
7 
38 
49.0 
116 
58 
40 
Polaris. 
7 
41 
10.0 
89 
09 
30 
7 
42 
21.5 
89 
10 
10 
7 
43 
00.5 
89 
10 
50 
7 
43 
50.0 
89 
11 
10 
7 
44 
34.0 
89 
11 
40 
7 
45 
08.0 
89 
12 
10 
7 
45 
42.5 
89 
12 
50 
7 
46 
20.5 
89 
13 
10 
7 
47 
12.5 
89 
13 
30 
7 
48 
0.3.5 
89 
14 
00 
Jupiter. 
7 
54 
06.0 
62 
27 
10 
7 
54 
56.5 
62 
28 
00 
7 
55 
46.5 
62 
28 
40 
7 
56 
30.5 
62 
29 
30 
7 
57 
15.5 
62 
29 
50 
7 
58 
06.0 
62 
29 
50 
7 
58 
58.5 
62 
30 
00 
7 
59 
42.5 
62 
30 
20 
8 
00 
26.5 
62 
30 
20 
CAMP 71 A—OCTOBER 27 
, 1855— 
■Continued. 
Observer — Lieut. IT. L. Abb 
OT, 
U. S. Top. 
Engineers. 
Object observed. 
Time of observ’n 
O 
rserved double 
by chronometer. 
altitudes 
h. 
m. 
s 
d. in. 
e 
Jupiter. *. 
8 
01 
27.5 
62 30 
10 
8 
02 
06.0 
62 30 
00 
8 
(3 
42.5 
62 29 
50 
8 
04 
31.0 
62 29 
40 
8 
05 
14.0 
62 29 
30 
8 
08 
14.0 
62 28 
40 
8 
09 
06.5 
62 28 
20 
8 
10 
03.0 
62 27 
10 
Index error, + 0' 50". 
Barometer, 29.3 in. 
Thermome- 
ter, 45°.5. 
CAMP 73 A- 
-OCTOBER 30, 1855. 
Observer — Lieut. H. L. Abbot, 
U. S. Top. Engineers. 
h. 
m. 
s. 
d. in. 
S. 
r i Pegasi . 
6 
40 
28.0 
123 15 
30 
6 
41 
36.0 
123 39 
30 
6 
42 
43.5 
124 02 
00 
6 
43 
59.0 
124 28 
00 
6 
45 
05.5 
124 51 
10 
6 
46 
05.5 
125 11 
00 
a Lyrae . 
7 
07 
35.5 
124 14 
20 
7 
09 
14.0 
123 38 
50 
7 
10 
25.5 
123 12 
20 
7 
11 
15.5 
122 54 
40 
7 
11 
58.5 
122 38 
30 
7 
13 
09.5 
122 12 
40 
Polaris . 
6 
50 
42.0 
87 44 
00 
6 
52 
16.0 
87 45 
30 
6 
53 
27.5 
87 46 
30 
6 
54 
14.0 
87 47 
00 
6 
55 
42.0 
87 48 
50 
6 
56 
24.5 
87 49 
10 
6 
58 
43.5 
87 50 
20 
7 
00 
05.5 
87 51 
20 
7 
01 
25.5 
87 52 
10 
7 
02 
24.0 
87 52 
50 
7 
03 
14.0 
87 53 
40 
Index error, + 1' 20”. Barometer, 29.7 in. Thermome 
ter, 45°. 
CAMP 74 A—OCTOBER 31, 1855. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
h. 
m . 
.S. 
d. 
m. 
s . 
a Lyrse. 
8 
02 
02.0 
102 
52 
00 
8 
04 
29.0 
102 
00 
00 
8 
05 
48.il 
101 
31 
30 
8 
06 
31.5 
101 
14 
40 
8 
07 
42.0 
100 
49 
50 
8 
08 
28.5 
100 
32 
30 
8 
10 
08.0 
99 
58 
00 
8 
10 
55.0 
99 
42 
20 
8 
11 
56.0 
99 
19 
30 
