290 Mr. Herschei/s and Mr. South’s observations of the apparent 
70 p Ophiuchi continued. 
The various measures of this star by different observers, 
may be arranged in order of time as follows : 
*77977 ; Position o° o'f; ft. Account of Changes, &c. 1804. 
9 14 sf; Distance 4".492 ; D°, the distance a mean of 4. MS. 
66 8 np ; Ditto. MS. 
48 48 np ; Ditto, mean of 2 meas. May 29 and June 3. MS. 
78 42 sf; Distance 4". 559 ; Struve, Additamenta, 179. The 
distance computed from A R.A. o s .o6i. Two 
measures with a projection micrometer gave 
5"-34- 
72 6 sf; Ditto, Zach, Corr. Astr. viii. p. 521 ; 3 measures. 
66 2 sf; H. and S. Mean of the meas. of 1821, ut supra. 
67 39 sf; Struve, vide Zach Corr. Ast. viii. 520 ; Dis- 
tance = 4". 30 3, D°. D°. computed from the 
angle 67° 39', and 1 2 measures of A declination. 
64 48 sf; H. and S, computed mean of 3 years observations. 
65 7 sf; H. and S, mean of observations of 1822. 
63 25 sf; H. and S, mean of observations of 1823. 
The angles of 1779 and 1781 contradict each other, but 
the earlier is to be preferred, as in the MS. observation the 
circumstance of the stars being exactly in the direction of the 
equatorial motion and running together along the hair is par- 
ticularly mentioned. The motion of these stars appears ex- 
ceedingly capricious, the diminution of angular velocity since 
the year 1821 being so great and sudden as almost to throw 
a doubt on the observations made after that time. The agree- 
ment between our measures and those of M. Struve in that 
year, is sufficient to prove that we have observed the same 
star, and all other observations on it were made with the 
utmost care, in nights selected for their clearness, &c., and 
when the telescope was in its best action. Had the angular 
* 178174; 
1802.34; 
1804.42 ; 
1819.63 ; 
1820.23 ; 
1821.31 ; 
1821.72 ; 
1822.42 ; 
1822.49 ; 
1823.32; 
