74 Mr. South's observations of the apparent distances 



No. CCCCLXXIX. continued. 



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

 9th and 10th magnitudes. 



Position = 51° i' «;> I 5 Obs 

 Pistance=46".833 5 Obs 



^^^•Z°: 3^1 Very difficult. 



DifF, 

 Observed by twilight, without artificial illumination. 



A distant star C of the 5th magnitude follows A to the North. 



Measures of A C. 

 Passy ; March 17, 1825 ; Seven-feet Equatorial. 



Position = 54* 44' nf I 5 Obs. DifF. = 0° 29' ) „ ^ ... , 

 Distance = 2' i^".6go \ 5 Obs. DifF. = d'M^ \ ^^ twilight. 



Without artificial illumination. 



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



9th and 5th magnitudes. 



Position = 54° 46' nf I 3 Obs. I DifF. = 0° 32O ^ ^ ... , ^ 

 Distance= 2' 37".6i5 | 3 Obs. | DifF. = o".4s65 ^^ twilight. 



Without artificial illumination. 



Mean Result. 



of AB. Position 51° 21' sp (16 Obs.); Epoch 1825.20; 



Distance 46".630 (10 Obs.) ; Epoch 1825.22. 



of AC Position 54*45' w/(8 Obs.); Distance 2' 38". 162 (8 Obs.); 



Epoch 1825.22, 



The star C being to the north of A. 



No. CCCCLXXX. R. A. 5»» 16- ; Decl. 1° 45' N. 

 Struve, 177 ; I. 52. 

 Double; 9th and 12th magnitudes ; small, blue. 



Passy ; January 6, 1825 ; Seven-feet Equatorial. 



Position = 54** Ki' tip 7 Obs. I DifF. =. 6° o' ) t- • 1 j-/p , 

 Distance = 2*974 5 Obs. | DifF. = 0^432 ] Excessively difficult. 



Observed when 15 minutes west of the meridian. Stars very steady. The de- 

 position of moisture on the inner and outer surfaces of the object-glass is becoming 

 troublesome. Thermometer in the observatory stands at 24^ degrees. 



