Analisis Morfologi Kontur Medan Magnet Daerah Flare Sunspot Pra Sampai Pasca Flare

Pre-flare condition is characterized by stronger magnetic field in the active regions, compared to that in the surrounding quiet regions. During the active phase, magnetic filed (represented in the contour and brightness of magnetogram) around sunspot group shows the dynamics. The measurable parameter of the morphology of magnetic field up to the peak of their activity is the increas of magnetic flux and the spread of the bright region. While during post-flare, magnetogram contour is decreasing and sunspot groups dissapear