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Top: Two representative images of the Sun from the AIA instrument on SDO, through the 19.3 pass-band, from solar maximum (left; 2014-Jan-01) and solar minimum (right; 2020-Jan-01). Bottom: Highlights several different manually identified regions that can be identified in the corresponding images above, such as active regions (green), equatorial coronal holes (blue), filament channels (red), and polar coronal holes (yellow).
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