distances and positions of 380 double and triple stars , &c. 269 
43 Herculis continued. 
M. Struve has measured this star, rightly remarking that 
the star III. 41, which in the catalogue of 1782 is called 43 
Herculis, must be another star. In fact it is 100 Herculis, 
which both Mayer and Piazzi have also observed to be 
double. M. Struve's measures of 43 are 
1819.63. Position 39 0 42' sp ; Distance I'vcf'.y. 
No. CCXL. R. A. i6 h 46'; Decl. 19 0 15' S. 
Piazzi, XVI. 236 ; Struve, 534 ; 
Large, white; small, blue ; 6 and 8 magnitudes. 
Position. Distance. 
Parts. 
20. 8 
19. 5 
19. 6 
18. 8 
18. 3 
20. 5, 
42.153 
45.40 j 
41.40 I 
40. o ' 
43-5+ r 
43- 3° 
40.20 
44- 3°. 
Mean 42.44 
June 10, 1823. 
Five-feet Equatorial. 
sp 
Position — 42 0 44' sp 
Distance == 5A641 
Mean zz 19.58 
Z “ — 1.72 
17.86 
No. CCXLI. R. A. i6 h 53 m ; Decl. 47° 3 6' N. 
H. C. 310 ; Struve, 536 ; 
■* - ■ ■> 7 1 ■ \ > 
Very nearly equal ; 7! and magnitudes. 
Position. t. ir nr , 
May 26, 1823. 
Five-feet Equatorial. 
S P 
O / 
6.4°-' 
6.40 
6. o >•$ 
6 . 6 
6.10 
Mean 6. 1 9 
Position = 6° 19' sp 
Distance = i\^6".oq6. 
Distance. 
Parts. 
3 7 °- 5 
366. 3 
367- 3 
367. o 
366. 5^ 
)>s 
Mean — 367.52 
Z — — 0.1 1 
367-4* 
