404 



COMPARISON OF CATALOGUES OF STARS. 



The following example will illustrate the use of the tables : — 



Reduction of the Coordinates of v Orionis to the System of Auwers. 



= +14 40 



46 



52.05 

 +.33 

 -.11 



+.24 

 52.51 



S=+14 



In the formation of the catalogue which follows, the corrections were for con- 

 venience taken from the tables derived from the separate approximations. On account 

 of the slight uncertainty in the interpolations from the double argument tables, an 

 occasional deviation of four or five units from the results given by the final table of 

 corrections given above may be found. 



Atjwees minus Safford. 

 Aa. Corrections depending on 8. 



