KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 60. N:0 8- 



33 



Table VI. The Apex-values. 

 In this table probable errors are employed. V and K are expressed in kin / s 



Material 

 employed 





K 



V 



.4 



P 



10 Clusters 





56±107km.' sec . 



- 355±112km./ sec . 



+ 5°± 9° 



+ 76°±139 c 











- 384±100 



+ 40 ± 40 



+ 74 ± 30 



24 objects 



+ 



287 ± 57 



- 430 ±152 



-34 ± 16 



+ 9 ± 16 











- 462 ±184 



-27 ± 23 



-10 ± 18 



20 objects 



+ 



330 ± 86 



- 415±210 



-31 ± 32 



+ 21 ± 29 











- 794±239 



-55 ± 14 



-10 ± 12 



18 Spirals 



+ 



659 ±149 



- 738±142 



-25 ± 60 



+ 71 ± 18 











- 785±254 



-52 ± 16 



-18 ± 17 



11 Spirals 



+ 



491 ±673 



- 599±836 



+ 45 ±102 



+ 46 ±136 











- 813±252 



+ 15 ± 26 



+ 10 ± 17 



7 Spirals 



+ 1233 + 717 



-1929 ±647 



+ 66 ±118 



+ 77 ±149 











-1725 ±455 



+ 15 ± 27 



+ 54 ± 37 



It is an interesting fact. that most of the Apex-values are situated in or near the 

 galactic plane. This is also the case with Wirtz' Apex-value calculated from the 

 proper motions of the 98 small nebulae, derived from the measurements made by 

 Schultz and Reinmuth 230 . 



fl£ 150 tio 



2oo 350 360 



Fig. 4- Distribution of spiral nebulae and globular clusters in galactic longitude. 



This fact shows what a fundamental part the Milky Way plays, not only in 

 respect to the distribution of the spirals and globulars, but also in regard to their 

 motions. 



From the homogeneous material about the distribution of spiral nebulae com- 

 municated by Fath in A. J. 28: 86 we have calculated the galactic longitudes for the 

 spirals and drawn the above curve, and besides the corresponding curve calculated 



K. Sv. Vet. Akad. Handl. Band CO. N:o 8. 5 



