The photo shows a sun spot at about 3600ºC, surrounded by a mosaic at 5800ºC. The image was taken on July 2 with the Big Bear Solar Observatory team; a 5.25-feet telescope that is able to resolve sun details as small as 45 kilometers in optimal conditions. The image itself shows details measuring 0.09 arcseconds, which is about 65 kilometers.
[...] Well, there you have it. Woy is right. [...]