We present observations taken with the Advanced Stokes Polarimeter (ASP) in active-region plages and study the frequency distribution of the magnetic field strength (B), inclination with respect to vertical ( gamma ), azimuthal orientation ( chi ), and filling factor (f). The most common values at disk center are B = 1400 G, gamma 10 deg, no

Planetary Nebulae (PNe) are highly representative of the last stages of intermediate mass stellar evolution. However, there are still many unresolved questions concerning their evolutionary scheme. Mass loss processes during the Asymptotic Giant Branch (AGB) are not fully understood. Binarity, rotation and magnetic fields may play an important role

Erratum to Astron. Astrophys. Suppl. Ser. 117 (1996) 227-254.

Not Available

Not Available

Not Available