172 Mr. South's observations of the apparent distances 



No. DCXXVIII. R. A. 11^ 21"" ; Decl. 60" 40' N. 



Struve, 389; 1790; 381. 



Double ; 8th and 8|- magnitudes. 



Blackman-street ; April 11, 1824 ; Five-feet Equatorial. 



Position = 0° 26' sf \ 5 Obs. | Diff. = 2" 1 3'. 



Blackman-street; April 12, 1824 ; Five-feet Equatorial. 

 8th and J)th magnitudes. 



Position s=o° 18' sf 

 Distance = iS"-°S3 



5 Obs. 

 5 Obs. 



DifF. = 0° 26' ) 

 DitF. = o".649J 



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



8th and 9th magnitudes. 



Distance = 13^.028 | 5 Obs. | DifF. =0". 3 36. 



Mean Result. 

 Position 0° 22' sf; Distance 13^.040; Epoch 1824.28. 



No. DCXXIX. R. A. ii»> 28™ ; Decl. 22° 25' N. 



Nova; 

 Double; 10th and 11th magnitudes. 



Passy ; May 5, 1825 ; Seven-feet Equatorial. 



Position = S\fSnp± I 5 Obs. I Diff. = ij f \ ^,,,,,;y,i difficult 

 Distance = 4+ '.159 ± | 5 Obs. | Diff. = 3 .775 S ^ 



Unless these should be corroborated by subsequent observations, I consider them 

 entitled to very little confidence ; neither star will bear any illumination. 



Passy ; May 9, 1825 ; Seven-feet Equatorial. 



10th and 1 1th magnitudes. 



Position =50 37' np i 5 Obs. Diff.= 0° 32' 1 Excessively difficult. 

 Distance=44 .919 | 5 Obs. Diff.= o.84i) ^ 



Under the most feeble illumination, both stars become invisible. 



Passy; May 10, 1825; Seven feet Equatorial. 



, loth and 12th magnitudes. 



Position = 5° 4.' np 5 Obs. Diff. = i; 6' j E^^esssively difficult. 

 Distance = 44' .044 5 Obs. Diff. = 1 .370) ' 



Mean Result, 

 Position 5° 34/ np (15 Obs.) ; Distance 44''.374 (i5 Obs,); 



Epoch 1825.35. 



