22 
MR. RUMKER’S OBSERVATIONS 
Lunar Eclipses observed at Paramatta. 
Lunar Eclip 
se, May 21, 1826. 
Spot. 
Immersion. 
Spot. 
Emersion. 
Mean Tim. 
Mean Tim. 
h 
m 
S 
h 
m 
S 
Beginning 
11 
37 
37 
1 Grimald. 
14 
5 
43 
2 Gallileus 
59 
39 
18 
2 Gallileus 
99 
8 
43 
1 Grimald. 
59 
41 
30 
j^Gassen. 
99 
9 
30 
3 Aristar. 
99 
41 
30 
99 
11 
29 
7 Harpal. 
59 
46 
39 
3 Aristar. 
59 
14 
48 
5 Gassend. 
59 
50 
23 
4 Kepler. 
99 
15 
29 
9 Lansber. 
99 
50 
23 
9 Lansber. 
99 
18 
7 
10 Reinold. 
59 
52 
56 
14 Bulliald. 
59 
19 
18 
11 Coperni. 
59 
52 
56 
21 Tycho. 
59 
20 
58 
15 Eratosth. 
59 
55 
14 
8 Heraclid. 
99 
20 
58 
14 Bulliald. 
59 
59 
27 
20 Pitatus 
99 
22 
13 
19 ln.sin.me. 
12 
0 
37 
7 Harpal. 
59 
23 
4 
22 Eudoxus 
95 
2 
53 
11 Coperni. 
59 
23 
38 
23 Aristot. 
59 
2 
53 
15 Eratosth. 
55 
24 
55 
25 Manil.. . 
95 
4 
39 
12 Helicon. 
59 
25 
51 
20 Pitatus 
99 
6 
26 
16 Timoch. 
59 
28 
41 
25 Menela. 
55 
7 
54 
19ln.sin.me. 
59 
29 
52 
27 Posid. . . 
99 
10 
43 
17 Plato . . 
99 
31 
23 
29 Plinius 
59 
11 
11 
31 Fracast.? 
99 
37 
16 
21 Tycho. 
99 
12 
23 
30 Teophi? 
99 
37 
16 
32 Censor!. 
95 
18 
5 
24 Manil.. . 
99 
38 
19 
30 Theoph. 
59 
18 
53 
22 Eudoxus 
59 
40 
34 
40 Tarunt. 
99 
20 
28 
23 Aristot. 
59 
40 
34 
31 Fracast. 
59 
21 
12 
28 Dionis. 
99 
41 
30 
39 Langr. 
99 
29 
17 
25 Menela. 
59 
41 
30 
38 Petaolus 
29 
17 
29 Plinius 
99 
45 
12 
31 Fracast.? 
99 
46 
34 
30 Theoph.? 
99 
46 
34 
27 Posidon. 
99 
47 33 
32 Censor. 
99 
48 
48 
40 Tarunt. 
99 
53 
15 
34 Prom. So. 
59 
53 
15 
36 Cleome 
59 
53 
51 
35 Proclus. 
99 
54 
49 
39 Langre 
95 
55 
18 
End. ... 
15 
1 
54 
Lunar Eclipse, January 26, 1S23. 
Number and 
Name of spot. 
Imme 
Enters the 
shade. 
Mean Tim. 
rsions. 
Is perfectly 
eclipsed. 
Mean Tim. 
Number and 
Name of spot. 
Emersion. 
Mean Tim. 
h 
m 
S 
h 
m 
S 
h 
ra 
S 
2 Gallileus 
13 
48 
13 
5 
Gassend. 
16 
30 
35 
4 Kepler. 
55 
51 
50 
1 4 
Kepler. 
59 
31 
15 
3 Aristar. 
55 
53 
48 
13 
54 
45 
24 
Manilius 
99 
50 
35 
14 Bulliald. 
55 
55 
13 
25 
Menel. 
99 
53 
11 
10 Reinold. 
55 
58 
32 
28 
Dion. . . 
95 
55 
21 
1 1 Coperni. 
95 
59 
10 
14 
0 
5 
29 
Plinius 
99 
57 
38 
21 Ticho. 
14 
0 
48 
27 
Posidon. 
99 
59 
33 
16 Timoch. 
59 
10 
25 
95 
11 
39 
18 Archim. 
55 
13 
55 
24 Manil.. . 
55 
14 
29 
99 
14 
55 
17 Plato . . 
55 
14 
42 
59 
15 
45 
28 Dion. . . 
55 
16 
21 
95 
16 
26 
25 Menela. 
95 
17 
33 
29 Plinius 
55 
20 
35 
22 Eudoxus 
55 
21 
45 
23 Aristot. 
59 
22 
21 
32 Censor. 
99 
23 
38 
plete, that occultations of stars of the eighth magnitude behind the eclipsed 
moon could conveniently be observed. I observed only one, as follows : 
h m s 
Immersion 12 34 38 
Emersion 12 48 41 
■) M 236° 44' 
The position of this star is about . j- p ec | ' 19 4G 
Aristarchus was towards the latter part of the eclipse as brilliant as a star of 
the first magnitude. In the beginning I found nothing particular about him. 
