distances and positions of 3 80 double and triple stars , &c. 97 
12 Lyncis continued. 
described in 40.81 years amounting to no less than 22°.74*, 
giving an annual angular motion of — o°-5574} in the direction 
np sf or retrograde. Should this continue uniform, the lapse of 
57 years will bring the three stars into one straight line, and 
in 646 years a complete revolution will have been performed. 
M. Struve’s measures are 
1821.32 ; Position of AB 69° 42' sf ; Struve, Dorpat Obs. 
AC 34 0 12 'np;j iii. 364. 
No. LXXV. R. A. 6 h 34- ; Decl. 43 0 4^ N. 
56 Aurigae ; Struve 244 ; V. 107 ; 
Double ; considerably unequal ; large white ; small blue ; 
6th and 9th magnitudes. 
March 11, 1823. 
Position. 
o ' 
71 - 55 ' 
74. o 
74.Z0 
72.4; 
7 2 - ! 5 !>S 
72.10 
73- 0 
72.20 
73- 5. 
Five-feet Equatorial. 
nf 
Position = 72°.52' nf 
Distance = 55".% 86 
Distance. 
Parts. 
177. 2~ 
176. 2 
175. o 
180. o >-S 
176. 5 
1 76. 2 
176. 
Mean ~ 72 .52 
Mean zz 176.80 
2 =— 1-43 
»75-37 
The above measure is corroborated by a single measure 
taken Feb. 11, 1823, which gave 73 0 nf(S). 
The measures of this star taken in 1783 give 
Position 36' nf. Distance 52 ".95. H. Cat. of 1785. 
MDCCCXXIV. 
O 
