AT THE OBSERVATORY AT PARAMATTA. 
57 
Mean Positions of the above Stars for the Time of the Comparison. 
Stars. 
Mean /Tt. 
Mean Deelin. 
Stars. 
Mean ill. 
Mean Deelin. 
e 
is P. 
XVI. 85 
O / // 
/ 
// 
h 
A Ophiuchi. 
? 
243 9 10.3 
16 
35 
24.2 S. 
O 
/ 
// 
o 
/ 
// 
1 
241 22 22.5 
19 
37 
13.3 
i 
243 
29 
28 
0 
25 
55 S. 
9 
241 39 29 
19 
39 
9-3 
k 
243 
30 
50.5 
0 
16 
16.9 S. 
K 
19 
46 
30.3 
1 
243 
31 
10 
0 
8 
24.9 S. 
Anon. 
240 49 7.8 
20 
56 
11.1 
m 
244 
54 
44 
0 
27 
35.2 N. 
A 
241 1 2.3 
20 
38 
40.0 
n 
243 
29 
28 
0 
9 
49.3 N. 
7 r 
241 58 28.5 
22 
50 
32 
o H. C. 
243 
21 
57 
1 
39 
9 S. 
<? 
240 51 37.2 
23 
19 
29.7 
o Mayer 
243 
20 
29 
1 
40 
6 
<r 
241 58 30.2 
22 
50 
32.4 
P 
241 
15 
56 
3 
13 
44 
t 
242 29 50 
23 
43 
58 ' 
q 
241 
54 
4 
3 
30 
12 
u 
242 40 19-3 
23 
16 
36.7 
r 
242 
6 
30 
3 
35 
8 
§ 
241 27 15 
23 
49 
34 
s 
244 
3 
42 
3 
27 
12 
0 
Hist. Cel. p. 472. 
t 
242 
14 
16 
4 
7 
14 
X 
241 2 35.3 
25 
1 
3 
u 
243 
18 
32 
3 
48 
39 
ov 
m Scorpii. 
v 
243 
19 
3 
3 
47 
24 
A 
87 Bode Scorpii. 
/3 
241 
28 
8.7 
14 
23 
49.3 
B 
2 c Scorpii. 
Anon. 
242 
15 
4.7 
14 
25 
47.6 
C 
1345 Ccel. Aust. 
s 
242 
2 
51.7 
16 
56 
11.2 
D 
P. XVI. 36 
Hence the following Positions of the Comet. 
1822. 
Sidereal Time 
at Paramatta. 
Mean 7R. 
Mean Deelin. 
1822. 
Sidereal Time 
at Paramatta. 
Mean 41. 
Mean Deelin. 
Sept. 23 
h 
m 
s 
O 
// 
O 
/ 
// 
h 
m 
S 
O 
/ 
// 
0 
, 
u 
20 
15 
46 
244 
30 
8 
3 
10 
22 
N. 
Oct. 27 
22 
6 
51 
241 
23 
20 
23 
8 
57 S. 
24 
20 
11 
28 
244 
18 
44 
2 
2 
57 
28 
21 
47 
45 
21 
58 
23 
39 
17 
26 
20 
8 
52 
243 
55 
51 
0 
6 
39 
S. 
29 
21 
52 
34 
» 
21 
0 
24 
10 
40 
27 
21 
37 
46 
243 
45 
45 
1 
13 
3 
30 
22 
2 
51 
?? 
18 
45 
24 
41 
41 
29 
21 
12 
30 
243 
27 
18 
3 
11 
51 
Nov. 2 
22 
39 
4 
?? 
14 
56 
26 
13 
3 
30 
20 
17 
45 
243 
19 
30 
4‘ 
7 
9 
4 
22 
35 
38 
?? 
12 
43 
27 
11 
15 
Oct. 12 
21 
6 
27 
242 
6 
31 
13 
57 
2 
7 
22 
45 
47 
?? 
10 
12 
28 
36 
41 
16 
21 
21 
39 
241 
49 
49 
16 
39 
36 
8 
22 
54 
2 
9 
49 
29 
4 
26 
21 
22 
8 
22 
241 
36 
37 
19 
46 
20 
10 
23 
3 
46 
7 
51 
29 
59 
56 
22 
21 
29 
26 
241 
34 
0 
20 
20 
18 
11 
23 
5 
46 
7 
13 
30 
26 
44 
26 
22 
5 
2.3 
241 
25 
32 
22 
36 
23 
From these Observations I have calculated the following Elements. 
Parabola. Ellipsis. 
Passage over Perihelion 1824, Oct. 24 rt .164853. . ,.24 d .221201 Mean Time Paramatta. 
Longitude of Perihelion .271° 40' 32".... 271° 36' 18". 3 
Longitude of Ascending Node 92 42 23 . . . . 92 42 23 
Inclination 52 40 41 .... 52 40 41 
Logarithm of Perihelion Distance .... 0.0592269. 
Logarithm of Eccentricity 9.9966440 <p = 82° 53' 11" 
Logarithm of half Parameter 0.3585731 
Logarithm of half the Major Axis 2.1728525 
Sidereal Revolution 663554.3 days = 1816.71 years. 
MDCCCXXIX. 
I 
