[ *53 ] 
IX. Obfervations of a new Variable Star . By John Goodricke, 
Efq . ; communicated by Sir H. C. Englefield, Bart. F. R. S, 
and dLt S « 
Read January 27, 1785. 
TO SIR H. C. ENGLEFIELD, BART. 
DEAR SIR, York, Jan. 10, 1785. 
T HE account that has been lately given of the regular 
variation of Algol’s light, and the notice aftronomers 
have been pleafed to take of it, are well known. It is natural 
therefore to fuppofe, that the relation of other fimilar pheno- 
mena may alfo meet with the fame favourable reception. Of 
this kind is the following, which I beg the favour of you to 
prefent to the Royal Society. 
On the 10th of September, 1784, whilft my attention was 
direded towards that part of the heavens where (3 Lyrae was 
fituated, I was furprifed to find this ftar much lefs bright than 
ufual, whereupon I fufpeded that it might be a variable ftar : 
my fufpicions were afterwards confirmed by a feries of obfer- 
vations, which have been regularly continued fince that time, 
and which will prefently follow in their proper place. At firft 
I thought the light of this ftar fubjed to a periodical variation 
of nearly fix days and nine hours , though the degree of its di- 
minution did not then appear to be conftant ; but now, upon a 
more clofe examination of the obfervations themfelves, I am 
Vol, LXXV* X inclined 
