73. On the comet, discovered in the Constellation Pegasus in 1821. 
371 
London has honoured me with admission, on the 12 th of January, as one 
of its Foreign Associates. I consider myself as greatly honoured by 
this distinction, so far beyond my merits; and request you will communi 
cate to the society my sincere thanks with the assurance that I will 
do all my slender powers will enable me in furtherance of their objects. 
On the 30 th of Januar}'' of the present year, about 7 o’clock in 
the evening, I observed a small comet near the star y Pegasi, not 
knowing that the same had been discovered on the 21 st of January by 
M. Nicollet in Paris, and on the same day by M. Pons in la Marlia. 
I annex my observations of this comet up to the present time. 
1821. Mean time at Bremen Appar. _Æ Appar. North Deci. 
Jan. 
Ö 
CO 
7 h 
17' 
51'' 
359° 
27' 
4" 
16° 
5' 
1" 
» 
30. 
8 h 
29' 
3" 
359° 
26' 
24" 
16° 
4' 
24" 
Febr. 
2. 
7 h 
40' 
50" 
359° 
8' 
35" 
15° 
50' 
14" 
55 
5. 
7 h 
11' 
50" 
358° 
54' 
3" 
15° 
37' 
56": 
55 
7. 
6 h 
50' 
6" 
358° 
44' 
41" 
15° 
28' 
55": 
55 
8. 
7 h 
2' 
15" 
358° 
40' 
24" 
15° 
24' 
55" 
55 
9. 
6 h 
54' 
52" 
358° 
36' 
16" 
15° 
21' 
20" 
55 
10. 
7 h 
9' 
3" 
358° 
32' 
24" 
15° 
17' 
34" 
55 
11. 
7 h 
16' 
21" 
358° 
28' 
21" 
15° 
14' 
18" 
55 
12. 
7 h 
7' 
32" 
358° 
24' 
49" 
15° 
10' 
55" 
55 
13. 
7 h 
3' 
30" 
358° 
20' 
59" 
15° 
7' 
58": 
55 
14. 
7 h 
27' 
44" 
358° 
17' 
23" 
15° 
4' 
31" 
55 
19. 
6 h 
49' 
20" 
357° 
59' 
48" 
14° 
48' 
10" 
March 1. 
7 b 
5' 
2" 
357° 
18' 
28" 
14° 
8' 
48" 
55 
5. 
6 h 
58' 
39" 
356° 
54' 
7" 
O 
CO 
T-H 
42' 
53" 
55 
6. 
6 h 
56' 
20" 
356° 
46' 
33" 
13° 
34' 
21" 
The following determinations of the path of this comet have been 
transmitted to me: they approach very near to each other, though the 
elements will require some corrections when applied to the ensemble of 
the observations. 
1821 
Prof. Encke 
of Seeberg 
Prof. Nicolai 
of Manheim 
H. von Staudt 
of Göttingen 
<V 
o 
rS 
Ph 
<x> 
Time of the perihelion passage 
March 21.405 
March 21.601 6 
March 21.602 6 
pP 
4-3 
Longitude of the perihelion . . 
289° 20' 45" 
239° 34' 5" 
239° 36' 0" 
<x> 
Log. perihelion distance . . . 
8,959 66 
8,964 66 
8,964 162 7 
.s 
4-3 
Longitude of ft 
48° 34' 37" 
CO 
©3 
xtH 
o 
00 
48° 45' 44" 
c3 
Inclination 
74° 5' 0" 
73° 23' 15" 
73° 16' 33" 
Motion retrogarde. 
On the 5 th of February 1821, I observed the remarkable luminous 
appearance on the dark part of the moon; respecting which Captain 
24*