Position angles (PAs) on different scales. The galaxy scale PA is shown as a green ellipse. The minor axis of the ellipse represents the inclination of the galaxy, i.e., the broader the minor axis, the lower the inclination. The 5 GHz VLBA and 33 GHz VLA radio continuum PAs are shown with orange and violet solid lines, respectively, and the uncertainties on the PA of the radio continuum are shown as shaded wedges. The maser disk is shown as a black solid line. For UGC 3193 detailed maser images are not yet available. The sizes of the ellipses, lines, and wedges do not represent correct relative scales.
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