25 Cyg HD189687 B3IVe V=5.19 vsini=200 km/s d=483 pc

To Download HPOL reticon 25 Cyg data(FITS files):
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Polarizations and Position Angles of Field Stars within 5 degrees of 25 Cyg

Field Stars

References

Plots containing all the HPOL reticon observations

%Pol vs Time	PA vs Time	Q vs U

Information on Individual HPOL reticon observations

25 Cyg HPOL reticon Observing Log:

                                                                                     intr BJ(pol)
Name     Date     MJD     ExpT   V-Pol(%) V-Err(%) V-PA(deg) HaEqW Vintr-Pol Vintr-PA high low  red
25 Cyg   920807 48841.17  5734    0.297    0.005   107.5      6.4
         920910 48875.13  8192    0.292    0.003   109.2      7.4
         920924 48889.06  6554    0.278    0.003   110.1      5.9