Time series of maps of various properties of the spectral line Hα at one minute cadence. First row: normalised intensity in the blue wing of Hα at −600 mÅ maps from the line core. Second row: normalised intensity maps in the line core. Third row: Bisector velocity at 70% depth of the Hα line core Fourth row: Bisector velocity at 40% depth of the Hα line core. Fifth and Sixth row: FWHM and EW of Hα, respectively. All maps include a central black contour to show the location, scale, and evolution of the MBP. An animation is available online.