224 Mr. South's observations of the apparent distances 



No. DCCVIII. R. A. 18^ 52" ; Decl. 14° 41' N. 



Struve, 599 ; n. 93. 



Double ; 8th and 12th magnitudes ; small, light blue. 



Passy ; July 24, 1825 : Seven-feet Equatorial. 



Position = 1 5» 54' «P I 5 Obs. | Diff. = 3° 44' \ Excessively difficult. 

 Distance = 6".i33 j 5 Obs. | DifF. = o".673 5 ' 



The small star is so extremely faint, and bears so feeble an illumination, that a 

 little inaccuracy of the results may be suspected. Observed when on the meridian : 

 stars very steady. Night remarkably favourable. 



Passy ; July 25, 1825 ; Seven-feet Equatorial. 



8th and 12th, or 13th magnitudes. 



Position = 19° 29' n J? I 5 Obs. | Diff. = 6« 55'. Excessively difficult. 



The small star is only visible by glimpses, and then is so extremely indistinct, that 



to procure measures of distance is impossible. 



Passy ; July 27, 1825 ; Seven-feet Equatorial. 

 * 8th and 12th magnitudes 



Position r: 

 Distance 



= 20° 20' np I 5 Obs. I Diff. = 4° 10' 7 ^j . , ..«. ,, 

 = 7". X5S I 5 Obs. I Diff rz J".36o \ Excessively difficult. 



The small star is pale blue, and is so very obscure, that the measures are exceed- 

 ingly precarious. Night fine. 



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



8| and 1 2th magnitudes. 



Position = 17° 32' n;> I 5 Obs. Diff. = 3° 42' ) Kxcessivelv difficult 

 Distance = 6".744 | 5 Obs. Diff. = o".649 j Excessively dithcult. 



The night being very favourable and the stars steady, I applied a power of 157 

 to procure these observations : little or no advantage however was derived from the 

 change : the measures are so extremely difficult, that I have no confidence in the 

 accuracy of this, or of any individual series ; the mean however of all, is probably 

 not very remote from the truth. 



