distances and positions of 380 double and triple stars , &c. 369 
61 Cygni continued. 
least three times as great. This circumstance, taken in con- 
nection with the rapidity of their apparent proper motion, 
affords a presumption of their being much nearer to us, and 
renders 61 Cygni a fit object for the investigation of parallax. 
No. CCCXXX. R. A. 2i h 26- ; Deck 6 g° 46' N. 
/3 Cephei ; III. 6 ; Struve, 724 ; 
Very unequal ; large, white ; small, bluish ; 3 and 8 or 9 
magnitudes. 
Position, 
d / 
* 9 - 55 ^ 
19-55 
20.5 x 
21.18 
21. 7 
18. ij 
l 7 - 5 I 
18.53 !>« 
57 - 3 ° 
19. zj 
20.30 l u 
20.56 j 
July 30, 1823? 
Five-feet Equatorial. 
sp 
Position 
Distance 
1 9 35 ' sp 
1 3"- 16 3 
Mean =: 19.35 
Mean ss 41.56 
Mr, H, very uncertain about his measures, 
Other measures are, 
1781.975 Position 1 5 0 28' sp ; Distance 13". 125 ; H. Catal. of /78a. 
1803.22; 17 18 sp ; H. (MS.) 
i8i 4 - 6 i 1 7 $ S P > Distance i Z ".9 ; Struve, Catalogue i . Stella 186, 
1820.16; 20 6 sp 1 13 .31 j Ditto, Additamenta, p, 198. 
1821,17 ; 19 12 sp ; Ditto, Dorpat Obs, iii. See Zach viii, 523. 
There may be surmised a very slow change of position in 
these stars. 
3 B 
MDCCCXXIV, 
