Pete Lawrence
Image taken:
Sep. 21, 2009
Selsey, West Sussex, UK
It's here! The new active region has finally rotated into view and is making its presence known. At the moment, in h-alpha the centre spot isn't that obvious as it's hidden under clouds of chromospheric plasma but the Calcium-K view shows that it's definitely a dark umbral spot. Interestingly, in h-alpha, the activity around the main spot is foreshortened into a shape that resembles a lunar crater. A couple of eruptive jets can be seen on the rear 'wall' of the 'crater'.
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