ISM: dust, extinction 3 Dust, extinction 2 Polarimeters 2 Astronomy 1 Astrophysics 1 Cepheids 1 Galaxies 1 Galaxy: Open clusters and associations: Individual (NGC 6611) 1 ISM: Dust, extinction 1 ISM: HII regions 1 ISM: Magnetic fields 1 Light polarization 1 Magnetic fields 1 Open clusters and associations: individual (Hogg 15, lyngå 14) 1 Open clusters and associations: individual (Lyngå 6) 1 Open clusters and associations: individual (NGC 6611) 1 Open clusters and associations: individual: NGC 5606 1 Open clusters and associations: individual: Pis20 1 Photometry 1 Photopolarimeter 1 Physical properties 1 Solar system 1 Star cluster 1 Stars: individual (TW Nor) 1 Stars: individual: WR67 1 Technique: polarimetric 1 Techniques: Polarimetric 1 Techniques: polarimetric Online material: machine-readable table 1