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Changes in sunspot group 1445 over 48 hours. March 26 to March 28, 2012

BobAnnMcGovern's picture

The 2 images show the changes in sunspot group 1445 over a 48 hour period. They were both taken around noon with an Imaging Source DBK color video camera on a 60mm Coronado Hydrogen alpha filter set at f/13. The video images were stacked in Registax 4 and cropped, etc. in Photoshop.