NB! Note! Variable!

BD +25 727 has been measured on 3 consecutive nights (4/2-6/2 2001) with Turpol at the NOT. Results are:

4/2-2001: 

        Linear polarisation     position angle 
         
   U:    4.79 ± 0.09 %          32.9 ± 0.5°    
   B:    5.44 ± 0.09 %          32.4 ± 0.5°
   V:    6.13 ± 0.08 %          32.9 ± 0.3°
   R:    6.35 ± 0.04 %          32.9 ± 0.2°
   I:    5.64 ± 0.06 %          31.1 ± 0.3°

5/2-2001: 

        Linear polarisation     position angle 
         
   U:    5.05 ± 0.11 %          34.3 ± 0.6°    
   B:    5.49 ± 0.06 %          33.0 ± 0.3°
   V:    6.15 ± 0.09 %          32.6 ± 0.4°
   R:    6.39 ± 0.04 %          32.6 ± 0.2°
   I:    5.50 ± 0.05 %          31.5 ± 0.2°

6/2-2001: 

        Linear polarisation     position angle 
         
   U:    5.09 ± 0.07 %          31.4 ± 0.4°    
   B:    5.94 ± 0.03 %          32.5 ± 0.2°
   V:    6.28 ± 0.03 %          32.2 ± 0.1°
   R:    6.13 ± 0.03 %          32.5 ± 0.1°
   I:    5.37 ± 0.02 %          31.8 ± 0.1°





6/3-2001,  Anlaug Amanda Kaas