56 



ABERRATION of the STARS, &e. 



Sun'b Long. 



To obtain the aberration in dec.inai on, the angle 'Emu is to be ufcd in 

 the fame n.anner the angle Eiim was in the cafe of ritht afccnfum ; and the 

 pei |e dicnlrirs 3*/), 2^0, iV, o'^v, and 1 1' , let tall iip^ n the diameter at right 

 angles to the meridian of the liar, will be the equations required. 



c 2 



"cG-? 



■£- 



■^ -S 



^^ 



1-1 h-j 



c -a 



u<; 







U< 



^3 



u< 



Thft 



