OSSERVAZIONI DI STELLE 171 



2 gennaio 



a Ursac min. 

 Ih. 23-. 34% 13™. 53% 2 37% 2 



34. 27, 2. 31, 4 .58, 4^2, 2882 



36. 56, 36, 



39. 43, 2. 43, 1 57, U b 28, 1957 



49. 1, 12. 2, 9 .38, l e 2, 9613 



53. 17, 16. 19, 7 37, 3 



56. 42, 19 45, 4 56, 6 ab 0% 735 



media 1^. 36"'. 37% 36 

 oc 1. 17. 50, 53 



Passo del micrometro 



79% 80 per giro 

 81, 80 » 



81, 167 . 



Con polare 

 te 10", 





( 



26". 

 33. 



40. 



48. 



42% ^ 

 21, ^ 



i 



10, ' 



1 



■ 17, ) 

 T-' Er 



giri 3 

 giri 5 

 giri 6 



idani 



3h. 4m, 



9% 



5 





51% 1 



0%6 





23, 



7 





35, 



0, 7 





41, 







19, 4 



0, 9 



3. 



0, 



7 







0, 7 





18, 



4 





17,5 



0, 9 





34, 



7 





34, 



0, 7 





49, 









48, 3 



0, 7 



0, 0617 

 0, 5440 

 0, 0716 



media 3^ 5">. 0% 74 ab 0% 018 



X 2. 43 54, 92 



