88 Mr. South' s observations of the apparent distances 



No. CCCCXCI. continued. 



The positions of B and C respectively in 1781, were 

 43° 51' sfj and 11'' 19' sf, the former indicating a change of 

 8® 7', and the latter of only 2'' 7'. The distances have un- 

 dergone little change. 



Here the fixity of the more distant star may be regarded 

 as affording presumptive evidence of a motion in the nearer 

 one, and that to a considerable amount (-f o°.202 per annum, 

 or direct.) This star therefore merits attention. (H.) 



No. CCCCXCII. R. A. 5^ 27" ; Decl. so'' 22' N. 



26 Aurigse ; Struve, 196 ; III. 64 ; 



Double ; 6th and 10th magnitudes ; small, blue. 



Passy ; December 29, 1824 : Seven-feet Equatorial. 



Position = i°45' sp I 6 Obs. I DifF. = i° 28' 7 ^._ , 

 Distance = 12". 265 \ 5 Obs. | DifF. in o".4s6 ] ^i^cult. 



After these measures were secured, the position wire was purposely set to zero. 



The small star is decidedly above the wire, whilst the larger one remains bisected 



by it, during their progress across the field. Night very favourable ; it freezes 



slightly. 



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



6th and 10th magnitudes. 



Position = 1° 32' sp 6 Obs. DifF. = 0° 53' \ y difficult 

 Distance = I2".388 5 Obs. DifF. = o".9i3 ] ^^^^ mmcult. 



Mean Result. 

 Position 1° 38' sp (12 Obs.) ; Distance 12".327 (10 Obs.); 



Epoch 1825,03. 

 In 1783 the position is stated (MSS.)to have been q^ s6' np, 

 and the distance i3".4i. In 1802 the angle v^as measured at 

 3° s^' np, but (for reasons assigned), this w^as regarded at the 

 time as a manifestly false measure, and the small star was 

 judged to be exactly preceding. The total change of angle is 

 4° 14', a considerable quantity for mere error of observation 

 in a star of the 3d class, and which (when the observation 

 of 1802 is considered ), may lead to a suspicion of a very slow 

 relative motion. (H.) 



