C 311 ] 
motion of the fixed fiars, and goes extremely regu- 
lar, So that all the remaining obfervations, down to 
the total difappearing of the comet, were taken at 
the marine Obfervatory. 
May 2d was quite cloudy; but the 3d, the wea- 
ther clearing up at night, 1 faw the comet between 
two new liars of the 8th and 9th magnitude. I de- 
termined their pofition for the prefent time by com- 
paring them with the liar ^3 of the Hydra in Flam- 
Head’s Catalogue. The nucleus of the comet I com- 
pared with thefe two new Hars, which may be feen 
in my firll table, N° 14 and 15. That night the 
comet was dillindly feen with the naked eye ; it 
looked like a little cloud of light, in the center of 
which was a luminous point, which was the nucleus, 
and appeared tolerably well terminated ,when feen 
through the Newtonian telefcope. The moon, which 
was now in her firll quarter, confiderably obllrudted 
the appearances of the comet; notwithflanding which, 
we could dillinguilh a tail about one degree and a 
half in length, tending to the Ball. 
The 4th was overcall ; but the 5th being perfedly 
clear in the evening, I faw the comet, but could 
form no judgment as to its appearances, becaufc of 
the moon-light. I compared the comet with two 
Hars of FlamHead’s Catalogue, which are the iH 
and 2d of the Hydra, both marked with the Greek 
letter (p‘ and (p^, the firfi of the 6th magnitude, the other 
of the 5th. The pofitions of both thefe Hars for the 
prefent time may be feen in the firH table. 
The 6th I again faw the comet. The moon-light 
Hill prevented afcertaining its real fize. I compared the 
nucleus with a new Har, which I judged to be of the 
I 7th 
