1007 Sunspot was twice the size of Earth.
Over the weekend, sunspot 1007 grew into a substantial active region with two planet-sized cores connected by dark magnetic filaments thousands of kilometers long. The ensemble bears a curious resemblance to the pipe of Sherlock Holmes: "It's filamentary, my dear Watson!" says Alan Friedman who sends this picture from his backyard observatory in Buffalo, New York: - www.spaceweather.com
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