S88 Mr. South's re-examination of seven double stars, made^>z 



No. IV. R. A. 6^ 22-" ; Decl. 17° 54' N. 



20 Geminorum ; H. and S. 72. 



Double ; 8th and 8|- magnitudes. 



Sloane-street ; February 7, 1826 ; Seven-feet Equatorial. 



Position = 60° 33' sp 5 Obs. I DifF. = o° 47' ) Unsteady 

 Distance = 2o".892 5 Obs. | DifF. = o".6oi 5 •^"^^^a^^y- 



Observed when half an hour east of the meridian ; stars neither steady, nor well 



defined. 



Sloane-street ; February 8, 1826 ; Seven-feet Equatorial. 

 G\ and 7th magnitudes. 



Position =: 59** 56' * ;> I 5 Obs. 

 Distance;:: 1 9".886 | 5 Obs. 



DifF. = o" 40' 



Diff. = 0.673 }"^^y* 



Observed when 1 8 minutes west of the meridian ; stars very unsteady. 



Sloane-street; February 11, 1826; Seven-feet Equatorial. 



8th and 8 J magnitudes. 



Position =: 61° 17' sp \ 5 Obs. { DifF. = 3° 15'. Extremely unsteady. 



The night is become so unfavourable, that I cannot procure any measures of 



distance. 



Sloane-street ; February 12, 1826 ; Seven-feet Equatorial. 

 8th and 8J magnitudes. 



Position = 60° 48' -J i> I 5 Obs. I DifF. = 0° 54' ) Unsteadv 

 Distance = i9".976 | 5 Obs. | DifF. = i".5is j Unsteady. 



Observed when 10 minutes west of the meridian; stars tolerably well defined. 



Mean Result. 

 Position 60° 38' sp (20 Obs.); Distance 20^251 ( 15 Obs.) ; 



Epoch 1826.09. 

 Our former measures of this star gave, Position 61° s' sp; 

 Distance 19".454; Epoch 1822.04; the former according 

 sufficiently with the present determination ; the latter differ- 

 ing more than might be expected, viz. nearly 8-tenths of a 

 second: whether this arise from a real motion of one of 

 the stars, or from erroneous observation, remains to be 

 ascertained. 



