VII. Account of a Nebula in Coma Berenices. By Edward 
Pigott, Efq. In a Letter to Nevil Mafkelyne, D. D. F. R. S, 
and Ajlronomer Royal. 
Read January n, 1781. 
m r? \r c t t> Frampton-houfe, Glamorganfhire, 
K ^ V * a 1 September 3, 1779. 
A S my father generally addreffes to you fuch papers as he 
communicates to the Royal Society, I beg the favour of 
you to acquaint that learned body, that, on the 23d of March, I 
difcovered a nebula in the conftellation of Coma Berenices, 
hitherto, I prefume, unnoticed ; at leaft not mentioned in M. 
de la lande’s iVftronomy, nor in M. Messier’s ample Cata- 
logue of nebulous Stars, I have obferved it in an achromatic 
tranfit inftrument, three feet long, and deduced its mean R. A. 
by comparing it to the following liars, having made the necef- 
fary corrections for aberration and nutation, the refults are : 
By S Gemini 
By y Canis Majoris 
By s Virginis 
By v Virginis 
By 5 Leonis 
o in 
191 28 35 
I9I 28 41 
191 28 45 
I9I 28 36 
19 1 28 34 
Mean R. A. of the nebula for April 20, 1779, 191 28 38 
Its 
