178 Mr. Herschel’s and Mr. South’s observations of the apparent 
12 Canum Venaticorum continued. 
Mean result. 
Position 43 0 2 1 sp ; Distance 19". 764 ; 1822.23. 
Other observations, 
Pos. n 41 0 4/ sp ; 1782.30 ; Dist. 2d', o ; H. Cat. of 1782. 
4 6 27 sp ; 1819.66; 19 .87; Str. Addi. &c. p.186. 
1821.67 ; 19". 9 4 ; Struve, Astron. Na- 
chrichten. No. 22. 
This fine double star appears therefore to have undergone 
no change whatever. 
No. CLIX, R. A. i2 h 48“ ; Decl. 55 0 T N. 
Struve, 430 ; 
8fch and 10th magnitudes ; large, white ; small, blue de- 
cidedly ; it is a miniature of e Bootis, and is at least as 
difficult of measurement ; no advantage is gained by using 
a higher magnifying power than we generally employ, 
which is 133. 
Position. 
® © / 
90—79.304 
78-35 
80. 5 
80.35 
y s 
79-45 
79-35J 
Mean — 79.41 
May 7, 1823. 
Five-feet Equatorial. 
np 
Position = io° 1 (f np 
Distance = 3". 622. 
Distance, 
Parts. 
10. 8' 
11. 7 
12. 6 , 
10. 8 r 
12. 5 
11. 7J 
Mean r = 1 1.68 
Z = — 0.21 
11 *47 
