and positions of 458 double and triple stars , &c. 213 
No. DCXCI. R. A. i7 h 32“ ; Decl. 24 0 30' N. 
Struve, 551 ; III. 104. 
Triple ; A 6th, B 10th, and C of the 9th magnitudes : the 
star B is decidedly blue, and bears a very considerable 
illumination. 
Blackman-street ; July 8, 1824 ; Seven-feet Equatorial. 
Measures of A B. 
Position = 8i° 7 ' nf 5 Obs. 
Distance;: 17". 374 5 Obs. 
Diff. — o° 31' ) 
Diff. zz o".384) 
On the meridian. 
Passy ; June 23, 1825 ; Seven-feet Equatorial. 
7th and 10th magnitudes. 
Position = 8o° 57' nf 5 Obs. 
Distance == i7".054 5 Obs. 
I Diff. = i° 1 8' ) 
I Diff. = o ".649 ) 
Very unsteady. 
Measures of A C. 
Blackman-street ; July 8, 1824; Seven-feet Equatorial. 
Position =71° 54' sf\ 5 Obs. Diff. — o° 43' ) 
Distance — 2' 38". o 8 i J 5 Obs. Diff. — 2".09i ) 
Passy ; June 23, 1825 ; Seven-feet Equatorial. 
7 th and 9 th magnitudes. 
Position =: 71 0 47' sf 
Distance — 2' 38".454 
5 Obs. Diff. 
5 Obs. Diff. 
= 0^.986 } Vef y unstead 7 ’ 
Mean Result . 
of A B. Position 8i° s' nf ; Distance 17 /, .214 ; 
Epoch 1825.00. 
of AC. Position 71 0 50' sf; Distance 2' 28". 267 ; 
Epoch 1825.00. 
A very trifling change (-f 2 0 46') in position, and a rather 
more notable alteration (+2" .881) in distance, appear on 
comparing these observations with those of 1783. (H.) 
