334 Mr. South' s re-examination of the apparent distances 



No. XIII. R. A. 12^ 32- ; Decl. o° 27' S. 



y Virginis ; III. 18 ; H. and S. 150. 



Double ; 8th and 8 i magnitudes. 



Passy ; April 3, 1825 ; Seven-feet Equatorial. 



Position = 7° 22' sf 

 Distance = 3".2Sy 



7 Obs. I DifF. = 3° 12' ) TT .. J 

 SObs. I Diff.=o".3 12 1 Unsteady. 



The angles were observed with 413 j but the distances with 181 only, in conse- 

 quence of the unsteadiness of the stars, which were at the time of observation a few 

 minutes west of the meridian, 



Passy ; April 4, 1825 ; Seven-feet Equatorial. 



S Obs. I DifF. = 2° 20' ) ,, , , 



5 Obs. I DifF. = o".6oi I ^^'y unsteady. 



Position = 6° 42' np 

 Distance s= 3".! 52 



The stars are of the 8th and Sf magnitudes. I tried to use a higher power than 

 181, but could not do it advantageously. 



Passy ; May 14, 1825 ; Seven-feet Equatorial. 



8th and 8^ magnitudes. ' 



Positioil == 6? 5 5' rep Vf Obs. | DifF. = i" 9' 1 

 Distance= 3".325 j 5 Obs. | DifF. = ©".456 > * * ' * 



Observed when on the meridian ; stars tolerably well defined, but unsteady. 



Passy; May 31, 1825 ; Seven-feet Equatorial. 



8^ and 9th magnitudes. 



Position = 6° 34' »p I 7 Obs. Diff. = 0° 51' ) ,;. ^ . 



Distance = 3".289 ^ | 5 Obs. DifF. = o".i8i j ^ery unsteady. 



Stars one hour west of the meridian ; at times tolerably well defined. 



Mean Result. 

 Position 6° 53' np (28 Obs.) ; Distance 3".263 (20 Obs.); 



Epoch 1825.32. 



These observations confirm the motion attributed to the 

 stars of y Virginis, and point out an acceleration in it, even 

 more strongly than has been insisted upon in a former paper. 

 This will appear by assembling all the observations with 

 their epochs, as follows : 



