66 



H. JA€OBT 



> 



Refraction, etc., Polar Distance, ir — -. 



The next step is the computation of £" 



n,s 



and C - 



: 



*' 



by means of equat- 



ions (8) and (9 ), for which purpose the following approximate values of the 

 right ascensions and polar distances were adopted. 



Approximate R. A. and P. D 





> 



The following Table contains the resulting values of f ' n . and £'„,, 

 duly corrected for refraction and aberration with the numbers already 

 given. 



$E3.-MaT. crp. 66. 



26 



