23°38" 6 5; 
28°8°27°30 
29°6°52°48 
30.7°24°27 
Dec. 3°7°27: 0 
17°6°26°30 
ry 
| . 
ts 
Bela $0 
9°14 14° 6 
9°23°57-23 
9° 25°50 10) 
$3275 59°27 
10° 3°53°49 
10° 6°18-16 
10°29°31 47 
| 
—8"53))58°44°99 
- 15 
912° 7-44 
9°14" 8°23 
9°24" 2°53 
9°25°55°30 
9°27°58°47 
58°46°42 
60°24 O 
61> 3°59 
61°22°11 
62°26" 7 
62°33°45 
AO°AN: IN 
10° 4° 3°32) 
Va SU ov 
2/62°52°20 
10*..6: 1:53 
10°29°42°16 
Sums. 
re 37° 4] 
+10-29 aajen ar: 12+32, 
59-37—59°30|| 
6i"iT" 4 
62°53° Of 
+ 213- 
52° 325 2° | 
The first innate in 1 this table was made at Nantucket by Mr. 
W. Folger jun, the second at Cambridge by Professor Farrar and Mr.I. 
Nichols, the rest are those I made at Salem by a circle of reflection, 
The observed and eis coe of the comet in ets and 
Oniaber agrees, peneral ae 
arose in great measure from the difficulty of observing with a circle, 
when the comet was very faint, the moon near the full or the weather 
very damp. 
The last time I saw the comet was on the 30th of January, 1808, at 
8h. 49’ 10" mean time at Salem. _ I estimated roughly its longitude to 
be about Os. 15° 12’ and its latitude 47°22’N. The longitude calcu- 
lated by ‘the above elements was Os. 15° 22’ and the latitude 47° 3’ 
N. The differences are within the limits of the errors of this ooserya- 
tion. 
oe 
I did not attempt to investigate the etptical o orbit of the comet ; for 
I found that if its mean distance from the sun was sixty times as great 
as that of the earth, and the other elements the same as in the parabolic 
orbit, the differences between the heliocentric places, calculated in the 
elliptical and in the parabolic orbit, from September to the middle of 
November, rarely cxeceted four minutes ; so that it would have been 
