Polarization Calibrators

Favorites of B-G Andersen: Zero pol: HD 212311 and BD+28 4211 — High pol: HD 204827 and HD19820

OptiPol Startup instructions

Some explanatory documents on polarization data

Chip’s polphot.py to do photometry on CCDproceed images (CR cleaning, bias, dark, flat already done) and compute stokes parameters for 00/22/45/67 sets of four.