M 42 M, d e Z Adi's AJlronomlcal Obfervatwns. 
Obfarvations of the iiioon’s eclipfe the iBth March, 1783..’ 
My obfervations with an achromatic teieicope 
feet length. 
3 i 
Time markec 
by the clock. 
True or ap- 
parent time. 
I M M E R S I ON S. 
The beginning of the echpfe very doubtful. 
h 
/ 
H 
h. 
/ 
Shadow touches Grimaldi 
- 
7 
4 * 
45 
7 
53 
39 
Grimaldi all in the fliadow 
7 
42 
54 
7 
54 
48 
Shadow touches Mare Humorum 
7 
49 
S 2 
8 
1 
27 
'Copernicus 
8 
0 
21 
8 
12 
16 
Copernicus all in the fliadow 
8 
2 
29 
8 
■14 
24 
Tycho touches the fliadow 
8 
6 
18 
8 
18 
13 
Eudoxus ■ 
8 
12 
19 
8 
24 
15 
— all in the'fhadow 
8 
l 3 
43 
8 
25 
39 
Mare . Serenitatis touches the fliadow 
8 
16 
7 
8 
28 
3 
— the fliadow in the middle 
8 
21 
3 1 
8 
33 
27 
A** * all in thedhadow 
8 
25 
54 
8 
37 
50 
Proclus touches the fliadow 
8 
32 
21 
8 
44 
18 
Mare Crifium touches the fliadow 
8 
33 
29 
8 
45 
26 
fliadow in the middle 
8 
35 
3 6 
8 
47 
33 
all in : the fliadow 
-- 
8 
36 
56 
8 
48 
53 
Total immerlion - 
8 
38 
57 
8 
5 ° 
55 
E M E RSI O N S. 
Beginning of the emerfion 
10 
*9 
57 
10 
32 
2 
Grimaldi-emerging 
10 
23 
33 
10 
35 
38 
all out of the fliadow 
- 
10 
24 
9 
10 
3 6 
14 
Mare -Humorum emerging 
10 
29 
34 
10 
41 
39 
Total emerfion- of Mare Humorum 
10 
35 
37 
10 
47 
43 
Copernicus all out of the fliadow 
* 
10 
43 
6 
10 
55 
12 
Mare Serenitatis all emerged 
10 
57 
32 
1 1 
9 
39 
Mare Crifium all emerged 
11 
1 5 
44 
1 1 
27 
51 
End of the eclipfe 
11 
20 
10 
11 
32 
18 
Total duration 
- 
3 
39 
0 
Father 
