[ 299 1 
2d edition, of the 5th magnitude, marked with the 
Greek letter a, the other a new ftar of the 8th mag- 
nitude, which I afcertained by oblcrvation, by com- 
paring it with the above-mentioned ftar a of Pifces, 
its right afcenfion for the prefent time being 352b 
5". and its declination 1°. 6h 40'' N. and is 
the 28th in the catalogue of the ftars which have ferved 
to find out the pofition of the comet, which is to 
be feen at the end of this memoir ; at 6'\ 56' true 
time, the pofition of the comet in right alcenfioii 
was eftimated at 352°. 15^ declination 
i”. 32'. 6'h North-. 
Jan. 22, at the fame hoar as the day before, the 
iky being equally clear, I again faw the fame light 
with the 44 foot telefcope, and found it had fenfibiy 
changed its^ place, but its appearances were the fame. 
From this iecond obfervation I no longer doubted of 
its being a comet ; and from this very night I began to 
take notice of the fituation of the nucleus, by com- 
paring it with a fmail new ftar which is not to be 
found in the catalogues, nor in the celeftial maps of 
Flamftead, but is that whofe pofition I have juft now 
mentioned, and which ftands N 28 in the catalogue 
annexed to this memoir. It was not. without fome 
difficulty that 1 could take the pofition of the comet 
with regard to this little ftar, becaufe 1 was obliged 
to throw light upon the threads of a filk micrometer, 
which was adapted to the Newtonian telefcope, f^ur 
feet and a half long, and the leaft degree of ligiit 
from a wax candle 1 made ufe of, prefently made 
both the comet and the ftar difappear. The pofition 
of the comet may be feen in the fecond table here- 
unto annexed, and like wife all the other pofitions of 
Q^q 2 
