STEREO - Solar Terrestrial Relations Observatory
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Important notice about STEREO Behind

Want Flares, CMEs? Watch this:


Several large, active regions on the Sun burst out with about 20 eruptions over 3.5 days (Oct. 25-28, 2013). Some were flares; some were coronal mass ejections, and at least one was a prominence eruption. The movie superimposes an image of the Sun in extreme UV light form the Solar Dynamic Observatory on a visible-light image of the solar corona obtained with SOHO's C2 coronagraph. The still was taken at 14:36 on Oct. 26. The Sun is about at its maximum level of activity in its 11-year solar cycle, so stormy stretches like this one are to be expected.

Last Revised: March 19, 2018 15:00:39 UTC
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