Researches in Stellar Photography. 207 



Table IV — continued. 



Number of 

 plate. 



Distance measured. 



Deviation from the mean. 



On 



photograph. 



With 

 heliometer. 



On 



photograph. 



In 



heliometer. 



Star 10. 



„ II 



» HI 



„ iv 



Mean .... 



1003 35 

 1003 -00 

 1002-11 

 1003 -06 



1002 -63 

 1002-57 

 1002 -49 

 1002-29 



0-47 

 0-12 

 0-77 

 0-18 



// 

 013 

 0-07 



o-oi 



021 



1002 -88 



1002 -50 



0-38 



11 



Star 12. 



Plate I 



„ II 



„ III 



» IV 



Mean .... 



1548 -58 

 1547 -94 

 1547 '98 

 1547 -21 



1547 -27 

 1547-47 

 1547-86 

 1547 65 



// 



65 

 01 

 0-05 

 0-72 



a 



0-29 

 0-09 

 0-30 

 0-09 



1547-93 



1547*56 



0-36 



0-19 



Star 13. 



Plate I 



„ II 



» HI 



„ iv 



Mean .... 



521- 99 

 522 21 



522- 15 

 522-15 



521 -61 

 521-52 

 521 -20 

 521 17 



// 

 0-14 

 0-08 

 0-02 

 0-02 



0-23 

 0-14 

 0-18 

 0-21 



522-13 



521 -38 



06 



0*19 



p 2 



