distances and positions of 380 double and triple stars, &c. 401 
No. CCCLXIII. R. A. 3 h 24™ ; Decl. 23 0 51' N. 
Double ; extremely unequal ; large, white ; small dusky. A 
most difficult star. The small star disappears when the 
eye is directed full upon it. 
Distance = 2 1".055. by Estimation 
(y Revol.) 
This star was measured by Sir W. Herschel in 1783, and 
the measures recorded in his second Catalogue are, 
If the angles could both be relied on, which however from 
the obscurity of the small star is doubtful, a considerable 
change ( 3° 39' ) must have taken place in the position, but 
little or none in the distance. 
1821.95 ; 23 0 42' nf ; Struve, Dorpat Obs. iii. p. 144. 
Position = 38° 48' sp ; (H) Distance = 1' 3i // -559 ; H. 
Considered as rude approximations only, the small star 
being too faint for accuracy. 
7 Tauri ; IV. 88 ; Struve, 96 ; 
Position. 
o 
Mean = 33.54 
Position 23 0 15' nf\ Distance 19". 833 ; 1783. 13. 
CCCLIV. R. A. 4 h 2 m ; Decl. 47 0 57' N. 
f*. Persei ; VI. 20 ; Struve, 114 ; 
Excessively unequal ; large, orange red. 
December 8, 1821. 
Five-feet Equatorial. 
sp 
(Single measures.) 
MDCCCXXI V. 
