and positions of 458 double and triple stars , &c. 7 9 
No. CCCCLXXXV. continued. 
Mean Result. 
Position 8i° 52' np ; Distance i5".44 6 ; Epoch 1825.17. 
A measure of the position of this star in 1783 gave 
74° 54' np, which differs 6° 58' from the present angle, being 
a change of -}- o°.i70 per annum, a very considerable quantity 
for so distant a star. However, the great difficulty of the 
measures must make us cautious in ascribing this to a real 
motion. The distance presents no sensible alteration. (H.) 
No. CCCCLXXXVI. R. A. 5 h 26™ ; Decl. 5° 32' S. 
6 Orionis ; Struve, 194 ; III. 1. 
Quintuple ; A of the 6th, B the 7th, C 7^, D of the 8th, and 
E of the 12th magnitudes. The four first stars form the 
Trapezium, in the nebula of Orion. 
Measures of A B. 
Blackman-street ; December 27 , 1823 ; Five-feet Equatorial. 
Position =40° 1 6' np I 8 Obs. 
Distance = 13". 293 j 8 Obs. 
Djff. = 4 ° 3 9 ' J Hazjr 
Diff. = o".979 
Blackman-street ; December 29 , 1823 : Seven-feet Equatorial. 
7 th and Sth magnitudes. 
Position = 40° 5' np I 8 Obs. 
Distance = I4"i3i | 3 Obs. 
Diff! = 2 o".x 2 9 5 4 UnsatisfaCt0ry - 
No more observations of distance can be obtained : the night is become cloudy; 
indeed whilst those here given were procured, the stars were only visible by glimpses, 
and then were very indistinct. 
Blackman-street ; December 30 , 1823 ; Seven-feet Equatorial. 
6 th and 7 th magnitudes. 
Position = 41 0 3' np | 6 Obs. 
Distance = 1 3".85 1 
[ 6 Obs. I 
I Diff. = 2 0 2' 1 
j 6 Obs. ] 
| Diff. = 1 ".034 ] 
