356 Mr. South's re-examination of the apparent distances 



No. XXIV. R. A. 17' 4- ; Decl. 26° 18' S. 



36 Ophiuchi ; H. and S. 243. 



continued. 



Our former measures gave, 



of AB. Position 42° 41' sp or nf; Distance 5". 546 ; 



of the distant star C. Position 19° 5' np ; Distance 3' o*735. 



The position of C was taken relatively to the star B, and is 



not materially in error; the distance however is decidedly 



wrong, and must have arisen from erroneous reading of the 



micrometer. 



Observations to connect the star A, or the northern of the two stars 

 of 36 Ophiuchi, with the star 30 Scorpii. 



Passy ; July 21, 1825 ; Seven-feet Equatorial. 



Position = 

 Distance = i 



14° 25'»/; single measure. \ Unsteadv 



12' 7".940 I 2 Obs. I DifF. = i".o82 5 ^J^steady. 



Observed with 157, when 15 minutes east of the meridian; some slight inaccu- 

 racy may be apprehended, as the wires when separated to so great a distance are not 

 quite free from parallax. 



Passy ; July 23, 1825 ; Seven-feet Equatorial. 



Position = 14° 27' nf I 5 Obs. 

 Distance = 12' 5". 590 | 5 Obs. 



^iff: = 2''.ofQ| Tolerably steady. 



Diff. = 2".oi95 

 Observed with a power of 92, when within 5 minutes on either side of the meridian 



Passy ; July 28, 1825 ; Seven-feet Equatorial. 



Position = 14° 28' nf I 5 Obs. Diff. = 0° 12 | ^,. , 

 Distance = 12' 4".20i | 5 Obs. DifF. = o".84i ] ^^^^"^V- 



Observed on the meridian, but the distance is too great for accuracy. 



Passy ; August 1, 1825 ; Seven-feet Equatorial. 



Distance = 12' 5".48o | 7 Obs. [ DifF. = i".875. Tolerably steady. 

 Observed when 10 minutes west of the meridian with 92. 



Mean Result. 



Position 14" ^1' nf'. Distance 12' 5".i36; Epoch 1825.57. 



In taking the mean, the distance observed July 21 is rejected. 



