and positions of 4f5S double and triple stars, (f.e, j-76 



No. DCXXX. R, A. ii*^ 30" ; Decl. 2f ai N- 



Struve, ^99. ; Hist. Casl. 64 ; 



Double; iith and 12th magnitudes. 



Rlackman-street ; April 19, 1824; Seven -feet Equatorial. 



Position = 3° 56' nf I 5 Obs. Djff. = i° 38' J Extremely difficult. 

 Distance = 5".684 | 5 Obs. Dift. = o .505 ^ ^ 



Under a very slight illumination of the micrometer wires, these stars become 



invisible. 



Passy; March 26, 1825 ; Seven-feet Equatorial. 



11th and 12th magnitudes. 



Position = 4° 3' nf 5 Obs. i Diff. = 3° 20' ^ gxtremelv difficult 

 Distance = 5".50i 5 Obs. | DifF. = o".649 5 Extremely dimcuit. 



The small star is light blue, and neither of them will bear scarcely any illumination. 



Mean Result. 

 Position 4**o' nf\ Distance ^'.S9^ \ Epoch 1824.76. 



No. DCXXXI. JR. A. 11'' ^9"^ ; Decl. 68° 19' N. 



Struve, 2^96 ; Hist. Casl. 385 ; 



Double ; 8th and 9th magnitudes. 



Blackrnan-street ; April 14, 1824 ; Five-feet Equatorial. 



Position =89° 4' «/ j 5 Obs. 

 Distances 1 1".7 1 3 ) 5 Obs. 



Diff. = »* 35' ) 

 Diff.=o".7;,8> 



Blackman-street ; April 17, 1824 ; Five-feet Equatorial. 



8th and 9th magnitudes. 



Position = 89" 3' */ j 5 Obs. j Diff. = 2° 20' ) 



Distance = 1 1".97 8 j 5 Obs. j Diff. = i".i68| • • • • 



Mean Result. 

 Position 89° 4' sf\ Distance ii".845; Epoch 1824.29. 



