CHAPTER IV. 



A treatment of proper motion and radial velocity in common 



44. As mentioned in the first chapter the proper motions in right ascension 

 and declination were in the catalogue noted for eacli star. In this chapter I will 

 through a combination of proper motion and radial velocity observations derive 

 the mean parallaxes of the stars. 



Before going further, however, I have rejected all stars whose proper motions ex- 

 ceed 0".600 per year. In his memoir Charliek rejects all stars having proper mo- 

 tions larger than 0".400. I have altered this limit because it -seems to me that too 

 many stars will be rejected in this way, compared with those having radial velo- 

 cities larger than 14.0 Sm. 



The remaining stars are distributed in the squares according to the table XV. 

 Here is also noted the number of rejected stars. 



TABLE XV. , 



Number of stars after rejecting those whose velocities in any direction are very large. 



Square 



11 



o 

 o 



3 § 



A 7 



a, A 

 o " 



A 



16 



1 



A, 



25 



5 



B, 



31 



10 



B 2 



31 



6 



B s 



24 



2 



B * 



22 



6 



B h 



24 



8 



A 



23 



1 



A 



22 



5 





31 



4 



1: 



39 



4 





31* 



3 





21 



3 



% 



26 



4 





49 



4 



% 



26* 



7 





22 



1 





19 



1 



c 7 



28 



2 





26 



5 



% 



18 



4 



0«, 



33 



8 



0» 



27 



3 



c n 



27 



3 







i 







ö 8 



Square 



n 



A 2 ' 





g> A 















A 



15 





A 



19 



4 



A 



36* 



4 



A 



35* 



3 



D r 



23 



1 



A 



12 





A 



13 



2 



A 



22 



4 



A 



34 





Ao 



30 



1 





27 



2 



k 



19 





Ei 



32 



5 



A 



36 



3 



I 8 



43 



3 



A 



62 



2 



A 



52 



,1 



A 



49 



1 



A 



46* 



3 



A 



43 





A 



32 



5 



Ao 



32 



3 



F. 



36 



2 



A 



28 



2 



* Including one star of type Oe. 



Lunds Universitets Årsskrift. N. F. Aid. 2. 



