and positions 0/4^58 double and triple stars, &c, 85 



No. CCCCLXXXVII. R, A. 5^ 26"^ ; Decl. 21° 5S' N. 



Struve, 192 ; I. 70. 



Double ; 9th and 9-^ magnitudes. 



Passy ; December 29, 1824 ; Seven-feet Equatorial. 



Position = 21^ 24' sp 5 Obs. I DifF. =zz° 11' \ p..^. ,. 

 Distance = 3".i28 5 Obs. | DifF. = o".6oi j ^^^^cuit. 



Passy ; January 2, 1825 ; Seven-feet Equatorial. 



9th and 10th magnitudes. 



Position = 21; o'sp\6 Obs. Diff. = 60 56' 1 Extremely difficult. 

 Distances 2 .450 j 5 Obs. Ditf. = o .432 3 



?assy ; February 2, 1825 ; Seven-feet Equatorial. 



9th and 9| magnitudes. 



Position = 220 32' sp I 6 Obs. I DifF. = 3° 32' ) Unsteady 

 ^- Distance = 3".332 | 5 Obs. | DifF. = o".240 5 ^"steaay. 



Measures extremely difficult. Night unfavourable. 



Mean Result. 



Position 21° 39' sp (17 Obs.) ; Distance 2^.970 (15 Obs.) ; 



Epoch 1825.03. 



The position at the Epoch 1782.86 was 36° 24' sp. A 

 change therefore of +14° 45' has taken place in the angle 

 of this star, being + o°.35o per annum, direct, or in the 

 direction sp nf. This is too large a quantity to be attri- 

 buted to error of observation, and the star therefore in all 

 probability belongs to the class of binary systems, and should 

 be carefully watched. (H.) 



