476 Mr. ooodricke’s Account of a 
and fourth magnitude ; £ Perfei, which Algol is equal to 
at its leaf! brightnefs, is not fo bright as 8 Perfei, and of 
about the fourth magnitude. 
OBSERVATIONS ON ALGOL* 
Brightnefs and magnitude of Algol. 
January 14, 1783. 
At 6 h. it was varied from its ufual brightnefs, but rather 
'brighter than (3 Arietis. 
At 64 h. equal to (3 Arietis, but rather a little lefs bright, 
and of between the fecond and third magnitude. 
At 7 1 h. third magnitude; not fo bright as j8 Arietis, and 
equal to (3 Trianguli. 
At 7 1 h. .nearly the fame as at 7 1-, but thought it was rather 
lefs bright than (3 Trianguli. 
At 8 1 h. between the third and fourth magnitude ; not quite 
fo bright as (3 trianguli, and rather lefs than e and £ Perfei, but 
a little brighter than 8 and £ Perfei. 
At 9 1 h. about the fourth magnitude., and equal to £ Perfei. 
The weather was cloudy till nf h. when it appeared to be 
of the third magnitude ; much brighter than £ Perfei, and 
rather brighter than y Perfei. 
At 12I h. between the fecond and third magnitude, and 
brighter than g and e Perfei and f 3 Trianguli. 
January 17. 
At 7 1 h. it was of the third magnitude, equal to e Perfei, 
and rather lefs than (3 Trianguli. 
At 8 h. a very little brighter than s Perfei, and equal to (3 
Trianguli. 
At 
