Important notice about STEREO Behind
STEREO (Ahead) kept a steady eye on a narrow portion of a solar prominence that rose up, wavered, and finally broke away from the Sun (May 28-30, 2010). It appeared that the trailing portion of the prominence still remained behind. With the spacecraftÕs viewing angle at edge on, the prominence looks somewhat like a long thin ribbon. Note that the part that erupted brightened (=heated in this case) as it went up. Prominences are cooler clouds of gas suspended above the solar surface by magnetic forces. They frequently become unstable and break away.
Last Revised: March 19, 2018 15:00:39 UTC
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