STUDIES IN STELLAR SmATISTICS. IH. Î 
-1 
and from the proper motions in Ó: 
0.087 Fe 
n dos RE 
d 0516 Ae. 
I 
From the last three formulæ we deduce 
@=1.33 R 
hence nearly the same value as from « and 0 combined. 
9. Bright stars. From the stars brighter than the 5" magni- 
tude, on which the value of (2 is based, I have taken out those brighter 
then the 4^ magnitude for an independent determination of R. There 
are 67 such stars of the spectral type B. 
The normal equations obtained from their radial velocities have 
the form 
SF NS TE Hon VAR Wl = = 76 
9.010 U" + 29.843 V''+ 2.530 W'' = — 103,92 
+ 11.498 UE 2530 V''+ 24.84. W" =+ 58.12 
which give 
UO" = — 0.022 
V" = + 3:5 
W'' = — 2.708 
and 
Q = 4 597 Sir/st. y. 
in good agreement with the result obtained from all stars brighter 
than 5".0. I have used the latter value in the computation of R beneath. 
From the right ascensions I obtain 
UE ==) If 0.0367 R : 
0 sie Fo 
Nova Acta Reg. Soc. Sc. Ups. Ser. 4, Vol. 4, N. 7. Impr. ‘‘/ 1916. 3 
