Polarimetry of the Galilean satellites and Jupiter near opposition
We present new polarimetric observations of the Galilean satellites Io, Europa, Ganymede, and Callisto as well as the North and South polar regions of Jupiter in the V filter within the range of phase angles −0.13−0.62°. The differences between our results and observations of other authors are discussed. It is shown that there is no second inversion point near the phase angle 0.5°. New observations fully confirmed the presence of the polarization opposition effect for the Galilean satellites Io, Europa, and Ganymede in the region of phase angles smaller than 2°. Observations of Jupiter verified a sharp turn of the angle between the observed polarization plane and the plane perpendicular to the scattering plane by 90°.