278 Mr, Herschei/s and Mr. South's observations of the apparent 
P Herculis continued. 
The measures of this star arranged in order of time, are 
1781.79; Position 
3 °° 
21 ' np; 
1802.17; 
31 
12 
1919.63; 
36 
9 n P‘> 
1821.38; 
37 
53 n P’> 
1821.76; 
35 
54 n Pi 
1822.65 ; 
Distance z".g 6 g-, H. Catal. of 1782. 
H. (MSS.) 
4". 78; Struve, Additamenta, p. 192. 
4". 463 ; H and S. ut supra. 
; Struve, Dorp. Obser. iii. vide 
Zach, viii. 524. 
4". 38; D°. Astronomische Nachrichten, 
No. 22. 
It seems extremely probable that this elegant double star 
has undergone a sensible alteration in its position. The dis- 
tance has increased materially. 
CCXLIX. R. A. i; h 2 6- ; Decl. 9 ° N. 
53 Ophiuchi ; Struve, 547 ; V. 30 ; 
Double ; both blue, or bluish white ; very unequal. 
Position. 
O / 
78-15 I 
79 ,l 7 } H 
78.47) 
78.40 1 
78.20 > S 
78.50$ 
Mean — 78.41 
June 14, 1821. 
Five -feet Equatorial. 
sp 
Position 
Distance 
78° 41' sp 
41". 662. 
Distance. 
Parts. 
5 3 °- 5 ) 
J 3 »- 0 / 
131. 8 ) 
I 3 1, 9 i 
1 33 * o l 
133. o ) 
H 
S 
Mean =2 131-87 
Z ~ 0.05 
13U92 
1782.38; Position 77 0 12' sp; Distance 32''. 35; H. Cat. of 1782 ; and MS. 
The distance is said to be a narrow measure. 
