18 C. V. L. CHARLIER, 
and from the declinations 
U" = + 0.0602 R 
V" = + 0.9089 R 
WU = — 0.3755 R 
and combining both 
U" =— 0.0019 R, 
+ 0.6720 R, 
W" =— 0.40 BR, 
= 
| 
and thus 
Q = 0.7859 R, 
which combined with the value 
Q = 4.488 
gives 
Ey pata 
corresponding to the absolute magnitude 
= — 97,178 . 
10. The values obtained for 7? from the stars of different magni- 
tudes seem to indicate a correlation between the magnitude and A. 
We have, indeed, obtained: 
From stars brighter than the 4” magnitude: 
R= 5.1 Sir./st. year 
From stars brighter than the 5" magnitude: 
R= 4,76 
From stars of the 5" magnitude: 
R= 3.43 . 
