276 Mr. YLEKSCHEh’sandMr. South’s observations of the apparent 
CCXLVI. 
R. A. iy h 8 m ; Deck 
25 0 3' N. 
$ Herculis ; Struve, 541 ; V. 
1 ; 
Extremely unequal. 
Position. 
Distance. 
O O 1 
90-8. Ob 
May 15, 1821. 
Parts. 
89. s ) 
8.42 l H 
Five-feet Equatorial. 
90. of 
7 -3° i 
7. 0 J 
s f 
92. 0 ( 
90. 3 ) 
1 - 4 ! 
9 '■ 5 } 
7-44 l s 
0 8 ‘ 23 ( 
Position == 82° io' sf 
9 1 • 1 i, 
92. 8 r 
8.20 J 
Distance = 28". 8 69 
92. 9 ) 
93. 0 s 
Mean rz 7.50 
Mean — 91.46 
Z — — 0.05 
91.41 
Other measures of this star are, 
1781.81; Pos. 72 0 28' sf; Dist. 34".2i8. H. Cat. of 1782. The distance is the 
mean of that in the printed Catalogue and another 
MSS. measure 34".687. 
3819.62 ; 84 18 sf; Struve, Dorp. Obs. ii. p. 164. Obs. 50. 
1821.92; A declin. — 27".885 (whence distance = 28.148.) 
Struve. Vide Zach viii. p. 526 ; mean of 2 meas. 
There can be no doubt of a material change both in posi- 
tion and distance having taken place in this star, -{- g° 4,2 ' in 
the one, and —5". 349 in the other, are quantities too large 
to leave any room for doubt. The proper motion of S, if 
correctly stated in Piazzi’s Catalogue, should have carried it 
in 40 years — 8" in R. A. and — 5". 6 in declination, in the 
direction sp , at an angle of 37 0 with the parallel. Had the 
small star then remained at rest, the angle of position, instead 
of 82°, would now have been only 54 0 sf, and the distance 
3 2 "- 3 - 
