78 
MR. RUMKER’S OBSERVATIONS 
Equinox, March 1828, 
Containing Observations for determining the Right Ascensions of (3 Hydri 
and a Eridani. 
1828. 
Sun's Observed 
South Pol. Dist. 
Barora. 
Thcr. 
Limb. 
Refract. 
Parall. 
Scmidia- 
meter. 
Sun’s True Decli- 
nation. 
Distance from 
Equinox. 
Sun’s Apparent 
Right Ascen. 
Sun’s Culminat. 
by Equal Alt. 
Clock 
Fast. 
, 
// 
incites. 
// 
/ // 
0 
/ 
// 
0 / // 
h 
m s 
Mar. 
5 
84 
10 
12.05 
29.51 
80 
u 
24.53 
16 8.7 
6 
5 
31.7 S. 
14 14 14 
23 
3 3.07 
6 84 
33 
14.35 
29.52 
75 
L 
25.20 
„ 8.4 
5 
42 
28.9 S. 
13 18 58 
6 44.1 
h 
m s 
s 
/ 
84 
24 
8.9 
29.77 
73 
U 
25.39 
„ 8.0 
5 
19 
17.7S. 
12 23 39 
ft 
10 25.4 
23 
10 45.51 
20.04 
8 
85 
19 
41.8 
29.90 
77 
L 
26.37 
„ 7.8 
4 
55 
59.6 S. 
11 28 21 
14 6.6 
14 26.46 
19.80 
11 
85 
57 
43.4 
29.73 84 
U 
26.46 
„ 7.1 
3 
45 
43.0 S. 
8 42 52.5 
)) 
25 8.57 
99 
25 26.92 
18.35 
13 
86 
44 
50.9 
29.93 81 
u 
27.56 
„ 6.5 
2 
58 
35.0 S. 
6 52 52 
32 28.5 
32 46.57 
18.07 
14 
87 
8 
29.4 
29.88 1907 
u 
27 '42 
„ 6.2 
2 
34 
56.9 S. 
5 57 56 
36 8.2 
36 25.92 
17 30 
16 
88 
28 
2.45 
30.21 
80 
L 
30.16 
» 5.7 
1 
47 33.1 S. 
4 8 7.5 
43 21.5 
17 
47 23.0 
16.0 
18 89 
15 
26.3 
30.13 81 
L 
30.76 
„ 5.2 
1 
0 
8.1 S. 
2 18 37 
50 45.53 
51 0.14 
14.61 
19 ,89 
6 
52.7 
30.02 
96 
U 
29.70 
„ 5.0 
0 
36 
32.6 S. 
1 24 13 
» 
54 23.15 
9 ♦ 
54 37.83 
14.68 
20 90 
o 
41.8 
29.86 
100 
L 
30.15 
„ 4.7 
0 
12 52.7 S. 
0 29 41 
58 1.27 
21 
90 
26 
21.0 
29.76 83 
L 
31.81 
„ 4.3 
0 
10 
48.5 N. 
0 24 54 
0 
1 39.6 
0 
1 51.91 
12.30 
28 92 
39 
8.15 
29.83 81.3 
U 
34.66 
„ 2.6 
2 
55 
45.4 N. 
6 43 18 
26 53.2 
29 93 
2 
44.95 
29.83 
71.5 
U 
36.26 
„ 2.4 
3 
19 
23.6 N. 
7 41 22 
30 45.47 
30 
34 36.46 
13.19 
Apr. 
1 
94 
12 
32.6 
29.67 
78.5 
U 
37.08 
„ 1.3 
4 
29 
11.0 N. 
10 24 59 
99 
41 39.92 
99 
41 52.52 
12.60 
o 
95 
7 
31.4 
29.61 
75 
L 
38.61 
„ 1.0 
4 
52 
9 N. 
11 19 14 
45 16.93 
45 31.16 
14.23 
3 94 58 
33.1 
29.88 65.7 
U 
39.60 
,, 0.0 
5 
15 
12.7 N. 
12 13 56 
48 55.73 
49 8.95 
13.22 
4 95 
53 29.95 
30.01 
66.5 
L 
41.20 
„ 0.2 
5 
38 
10.95 N. 
13 8 41 
52 34.73 
5 
96 
16 
19.5 
30.03 
68.2 
L 
41.60 
„ 0.1 
6 
1 
1.0 N. 
14 3 23 
56 13.53 
56 25.72 
12.19 
6 96 
6 
59.8 
30.20 
71.7 
U 
41.27 
15 59.9 
6 
23 
40.8 N. 
14 57 58.7 
59 51.91 
7 
1 
3 45.0 
14.1 
8 
7 24.46 
14.3 
9 97 
14 
20.9 
29.76 84.0 
U 
41 17 
„ 59.1 
7 31 
1.2 N. 
17 42 5 
1 
10 48.33 
ii 3.59 
15.26 
10 98 
8 
41.0 
,29.71 
72.5 
L 
43.58 
„ 58.6 
7 
53 
26.0 N. 
18 37 26.5 
1 
14 29.77 
11 
97 
58 
44.4 
129.87 
69.0 
U 
43.90 
„ 58.3 
8 
15 
26.6 N. 
19 32 12.5 
1 
18 8.85 
18 23.57 
14.72 
12 
,98 
52 
42.7 
29.91 
69.3 
L 
45.49 
„ 57.4 
8 
37 30.8 N. 
20 27 30.5 
1 
21 50.03 
22 2.65 
12.62 
13 99 
14 
30.2 
'30.22 
67 
L 
46.68 
„ 57.8 
8 
59 
19.1 N. 
21 22 35 
1 
25 30.33 
9* 
25 41.73 
11.40 
The mean inside Temperature was 75°- 
For those days when equal altitudes but no declinations of the sun were 
observed, the error of the clock has been derived from the Solar Tables. In 
the present observations no corrections have been applied to the sun’s distances 
from the equinox derived from the observed declinations ; and in the last equi- 
nox this correction did not amount to one second in arc upon the mean of the 
right ascensions. 
