distances and positions of 380 double and triple stars , &c. 185 
£ Ursse Majoris continued. 
1800. i5".9i J Struve, computed from Piazzi’s zd Catal. 
1800-1801. 15 .4; Triesnecker, by 41 measures, taken with a 
divided object-glass by Doleond. 
1818-1819. 14 .24; Struve, Additamenta, &c. p. 187. 
1821 (Oct.) 14 .68 ; Ditto, from difference of declinations r: I2".6. 
1822 (Aug.) 41 .79 ; Ditto, Astronomische Nachrichten, No. 22. 
As these stars have, according to M. Struve, a common 
proper motion of o".25 per annum, it is evident either that 
they are connected and form a binary system, or that their 
apparent motion is parallactic. This proper motion is how~ 
ever denied by Dr. Brinkley, on grounds which will shortly 
be before the public. 
No. CLXV. R. A. i 3 h 23“ ; Decl. 1 1° 46' S. 
Struve, 441 ; V. 128 ; 
Double ; 6th and 8th magnitudes. 
Position. 
n.iSl 
u. 5 ° | 
”•37 >S 
11.17 | 
10. 5 J 
Mean — 11.13 
May 23, 1823. 
Seven-feet Equatorial. 
n f 
Position = 1 1° 13' nf 
Distance = 
Distance. 
Parts. 
197 - 21 
197. 8 
200. 7 7- 
202. 7 j 
200. 5J 
S 
Mean zr 199.78 
Z=r— 1. 31 
198.47 
1783.27 ; Distance 4i".96 ; H. Catalogue of 1785. 
An apparent increase of distance amounting to 5".76o. 
B b 
MDCCCXXI V. 
