28 
MR. RUMKER’S OBSERVATIONS 
From another corresponding Observation made at Abo, 9th Nov. 1826 ^ 
(Star x Piscium), I find 4 21.50 
A corresponding Observation made by M. Dumouchel at the Collegio 
Romano, 8th May 1827 (Star Spica), gives me 4 16.30 
As the uncertainty of the Moon’s horary motion diminishes greatly the ac- 
curacy with which from corresponding observations of the Transits of the 
Moon and Stars, the difference of Longitude can be found, when this is great ; 
and as moreover under these circumstances corresponding observations are 
rare, I have, in order to derive some benefit from all my observations, em- 
ployed the method explained at the end of the Table. 
Observed Right Ascensions of the Moon, and Longitude of the Observatory. 
Day of the 
Month. 
Apparent 
Time at Pa- 
ramatta. 
Moon’s true 
Right Ascension 
from Observat y . 
Longitude of 
the Observa- 
tory. 
Day of the 
Month. 
Apparent Time 
at Paramatta. 
Moon’s true 
RightAscension 
from Observat y . 
Longitude of 
the Observa- 
tory. 
1822; 
h 
m 
S 
h 
ra 
S 
1827. 
h 
m 
S 
o 
/ 
M 
h 
m 
S 
May 30 
99 
99 
99 
99 
99 
10 
3 
56. 
Aug. 
2 
7 
14 
5.73 
240 
29 
35.7 
10 
4 
12.3 
31 
79 
79 
97 
99 
99 
99 
99 
4 
7.2 
3 
8 
13 
50.3 
256 
26 
32.6 
99 
4 
7.4 
1826. 
17 
20 
22 
14.0 
91 
46 
13.8 
99 
3 
40.3 
May 20 
10 
53 
12.3 
220 
16 
16.4 
99 
4 
11.2 
30 
6 
10 
54.8 
250 
55 
36.8 
97 
4 
17.6 
June 14 
6 
46 
20.2 
183 
53 
18.9 
99 
4 
20.9 
Sept. 
31 
7 
9 
59-8 
266 
38 
45.6 
99 
4 
19.9 
16 
8 
33 
46.7 
212 
54 
59.0 
99 
3 
39.7 
2 
9 
7 
45.1 
297 
58 
13.2 
97 
4 
28.6 
26 
17 
35 
15.3 
358 
31 
50.1 
99 
3 
56.6 
3 
10 
4 
18.4 
313 
2 
45.6 
99 
4 
29.2 
27 
18 
17. 
54.1 
10 
15 
44.4 
99 
3 
57-2 
Oct. 
1 
8 
59 
19.3 
321 
57 
38.6 
99 
4 
24.2 
28 
19 
0 
58.4 
22 
5 
46.5 
99 
3 
56.1 
29 
7 
52 
38.6 
331 
20 
40.1 
99 
4 
33.8 
29 
19 
45 
8.3 
34 
12 
8.5 
55 
3 
51.9 
1828. 
July 13 
6 
21 
21.5 
207 
36 
39-7 
55 
4 
25.4 
Jan. 
28 
9 
13 
14.4 
88 
34 
30.6 
99 
3 
59.4 
15 
8 
15 
27-6 
238 
15 
17-7 
55 
4 
10.8 
29 
10 
0 
25.6 
101 
26 
12.2 
79 
3 
37.5 
16« 
9 
15 
41.3 
254 
22 
2.3 
55 
4 
13.7 
Feb. 
3 
13 
46 
57-7 
162 
49 
57-9 
99 
3 
58.6 
17 
10 
16 
7-0 
270 
31 
26.6 
55 
4 
3.8 
5 
15 
15 
51.2 
187 
7 
55.3 
99 
4 
3.8 
24 
16 
9 
9.3 
5 
28 
53.1 
55 
3 
45.6 
Mar. 
31 
12 
6 
2.89 
191 
12 
59-8 
99 
3 
52.7 
25 
16 
52 
42.3 
17 
23 
25.3 
55 
3 
51.3 
April. 
25 
8 
30 
48.5 
160 
49 
14.2 
97 
4 
20.3 
26 
17 
36 
4.0 
29 
•26 
54.6 
55 
3 
50.5 
26 
9 
15 
45.3 
173 
1 
50.5 
99 
4 
1.2 
27 
18 
10.8 
41 
47 
35.5 
55 
4 
1.2 
May 
23 
7 
9 
31.2 
167 
40 
58.9 
99 
4 
16.5 
Aug. 1 1 
6 
9 
50.13 
233 
14 
40.8 
55 
4 
0.1 
25 
8 
40 
24.8 
192 
29 
34.4 
99 
4 
8.1 
1-2 
7 
8 
23.8 
248 
52 
20.1 
55 
4 
3.7 
27 
10 
21 
21.1 
219 
50 
5.9 
99 
4 
1.0 
22 
15 
34 
31.7 
24 
31 
44.2 
55 
4 
14.3 
June 
21 
6 
27 
45.4 
187 
1 
53.6 
9? 
4 
5.0 
Sept. 16 
12 
8 
35.1 
355 
35 
15.0 
55 
4 
16.4 
27 
11 
53 
15.0 
274 
54 
27-8 
99 
4 
20.0 
Dec. 12 
10 
28 
58.7 
56 
38 
30.8 
55 
4 
12.7 
27 
11 
55 
41.2 
274 
56 
8.1 
99 
4 
15.2 
1827- 
July 
3 
17 
30 
32.5 
5 
7 
18.5 
99 
3 
40.9 
Feb. 16 
15 
41 
53.5 
204 
44 
54.0 
55 
4 
3.0 
19 
5 
4 
10.5 
194 
49 
15.7 
99 
4 
14.5 
Mar. 17 
1 5 
32 
27.5 
229 
30 
30.5 
55 
4 
18.8 
21 
6 
40 
30.5 
220 
59 
9-3 
99 
4 
12.1 
18 
16 
30 
59-1 
245 
5 
8.4 
22 
7 
33 
34.9 
235 
17 
46.7 
99 
4 
18.3 
May 6 
7 
46 
32.6 
159 
29 
38.8 
23 
8 
30 
13.6 
250 
29 
53.2 
99 
4 
21.35 
7 
8 
34 
26.1 
172 
27 
35.8 
24 
9 
29 
52.3 
266 
26 
49.7 
99 
4 
20.1 
8 
10 
17 
21.9 
200 
12 
36.5 
55 
4 
4.6 
Aug. 
20 
7 
18 
7-1 
259 
16 
24.9 
June 13 
15 
55 
17-7 
319 
41 
44.5 
55 
3 
51.7 
21 
8 
17 
0.2 
274 
57 
43.0 
97 
4 
21.77 
July 3 
6 
38 
51.8 
201 
29 
40.5 
55 
4 
25.2 
4 
7 
31 
53.1 
215 
49 
40.2 
55 
4 
20.0 
The Stars upon which the Moon’s right ascensions repose may be referred 
to, page 2d, 25, and 20. 
