Sunspot 798, September 12. 2005. The sun is currently at the solar minimum, a time in its eleven year sunspot cycle when there are few, if any sunspots on its surface. Every now and then though a big one will form and number 798 was certainly noteworthy. To give a sense of scale, the Earth would be about the size of one of the small dots to the upper left of the main spots. This image was taken with my dobsonian telescope fitted with a Baader solar filter.
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