a new Comet, 
ioh. 30', another confiderable flar c may be taken into the 
field with it, by placing a in the center ; when the comet and 
the other flar will both appear in the circumference, as in 
%• s • 
Thefe obfervations were made with a Newtonian fweeper of 
27 inches focal length, and a power of about 20, the field of 
view is 2 0 1 2 / . I xannot find the flars a and c in any cata- 
logue ; but fuppofe they may eafily be traced in the heavens ; 
whence the fituation of the comet, as it was laff night at 
10 h. 33', may be pretty nearly alcertained. 
You will do me the favour of communicating thefe obfer- 
vations to my brother’s aftronomical friends. 
I have the honour to be, 5 cc. 
Slough, near Windfor, 
Aug. 2, 1786. 
CAROLINE HERSCHEL. 
anfwer thefe figures j and as they were drawn from obfervations made by moon- 
light, twilight, hazy weather, and very near the horizon, it would not be at all 
furprifing if a miftake had been made : however, as thefe figures were only given 
with a view to Ihew the motion of the comet, the conclufion of the change of 
place, which was drawn from them, was equally good whether thefe ftars were 
the fame or different. 
Dec, 14, 1786. William Herschel. 
