GREAT REFRACTING TELESCOPE AT ELCHIES, IN MORAYSHIRE. 



385 



Com- Magni- 

 ponents, tude. 



A 



Colour. 



•4^' PISCIUM — continued. 



Position. Distance. 



B 



A 

 B 



A 

 B 



A 

 B 



A 

 B 



A 

 B 



A 

 B 

 C 



5 



5 

 12 



AB 161 2 



White 



White AB 160 19 



30-34 

 29-90 



Silvery white 



Silvery white AB 1 60 24 (w 8) 30-2 (w 8) 



Fine azure 

 Fine azure 



Flushed white. 

 Pale white . . . . 



White (1) 

 White (1) 



(2) Yellowish white (1) 

 (2) Bluish white (1)... 

 5 (2j Bluish (1) AC 121 20(tt/i) 98-18(wl) 



5(2) Bluish white (1) AB160 22(xy2) 30-43(tt;l)| 



Date. Authority. 



1822-38 H2 and S. 



183211 2. 



1833-97 Cycle. 



18448 Sestini. 



1849-7 Spec. Hart. 



1856-68 Alta. Vista. 



1862-72 Elchies. 



In Magnitude, A and B are pretty constant. 



In Colour, more attention to minute differences is required. 



In Position and Distance very little change has taken place, and in a direction 

 rather contrary to the computed effect of the difference of the proper motions in 

 the B. A. C, where it is given to either of the components separately. This 

 forms, however, only a " residual" anomaly, and it would be well worth while 

 to have the full amount of the whole proper motions of the mean of the two 

 stars, as given in the B. A. C, duly checked by micrometrical measurement. To 

 this end the Elchies telescope showed a small star conveniently situated, not 

 observed previously by any observer that I am aware of, and which I have called 

 C, and measured as above. 



In character, a slow binary. 





(4.) ^ PISCIUM, 



R.A. 



Ih 6m 37s . Decl. + 6° 



50' 44", 



January 1, 1862. 





Com- 

 onents. 



tr 





Position. 



Distance 



Date. 



Authority 



A 

 B 









AB 67 23 



22-19 



1779-80 



H, 



A 



5 













B 



6 





AB 65 36 



23-33 



1823-87 



tf 



A 



4-2 White 













B 



5-3 White 





.... AB 63 43 



23-46 



1832-83 



2. 



A 



6 Silver white 







23-4 (it/ 



9) 1839-05 





B 



8 Pale grey 







.... AB 63 48(w9) 



Cycle, 



