70 



H. JACOBY, 



■\ 



The solution of the above equations by least squares gave the following 



results : 



d 



'/ 



0:7 6 



0?065, 



dr\ 



n 



OU 6 



o:o65, 



Image. 



A n ^' 



A n to 



1 



-+-T0061 



• 



—.0010 



6 



— .0041 



— .0031 



11 



— .0003 



— . 0008 



17 



-♦-.0041 



—.0025 



22 



— .0183 



— .0013 



28 



H-.0076 



-t-,0063 



The probable error of one equation was =t 0?44, and the sum of the 

 squares of the residuals came out as follows : 



[vv] 

 [vv] 

 [vv] 



35.716, for the right ascension equations 

 10.367, for the polar distance equations, 

 46.083, for all the equations together. 



) 



It would appear from this that the right ascension equations are not 

 entitled to as much weight as those depending on polar distance. If this be 

 so, we ought to find confirmatory evidence in the original measures. For 



purpose we have 



tputed the 



differences for each 



o 



between the measures of the two observers. The 



for the risht 



are contained 



reduced to arc of 

 le following little 



Table 







$H3.-MUT. CTp. 70. 



JO 





