and positions of 4:6^ double and triple stars, &c. 85 



No. CCCCLXXXIX. R. A. 5^ 26" ; Decl. &> i S. 

 Prsec. < Orionis ; Nova ; 



Double ; 7th and 7-J magnitudes. If < Orionis be brought 

 into the centre of the field, this double star will be found 

 in the apparent upper part of it ; a line drawn through the 

 centres of its two stars will pass to the north of ; Orionis ; 

 its larger star precedes ; 23 seconds of time, and is about 

 5^ minutes to the south of it. 



Black man-street; January 30, 1824 ; Five-feet Equatorial. 



Position = 49° 21' jp I 5 Obs. | Diff. = i*> 5'. Difficult. 



The night is very bad; stars too faint for accurate measures of distance j the 



small star of » Orionis is invisible. 



Blackman-street ; February 1, 1824 ; Seven-feet Equatorial. 



6th and Jth magnitudes. 



Position = 49° V sf\s Obs. DifF. = 0° 53' ) Unsatisfactory 

 Distance = lf.M% j 5 Obs. DiiF. z= i".oio5 ^nsatisractory. 



Stars very unsteady ; night by no means good. 



Blackman-street ; February 9, 1824 ; Five-feet Equatorial. 



6th and 7th magnitudes. 

 Distance = 36". 338 J 5 Obs. | DifF. =: o".947. Very unsteady. 



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



7 th and 8th magnitudes. 



Distance = n".^^\ \ 5 Obs. | DifF. = o''.745. Tolerably steady. 



Observed by twilight, without artificial illumination. 



Mean Result. 



Position 49° 11' 5^ ; Epoch 1824.08 ; Distance 37^116 



(15 Obs.) ; Epoch 1824.47. 



