A long, dark magnetic filament is looping over the sun’s northeastern limb today. Click on the image to see the structure in magnificent 4096×4096 resolution:

NASA’s Solar Dynamics Observatory took the picture just a few hours ago using the highest-resolution cameras ever flown on a mission to study the sun. Plasma trapped inside the filament is dense and cool relative to the seething inferno below. If the filament collapses, as filaments often do, the plasma could hit the surface and explode, producing a Hyder flare or a coronal mass ejection (CME). Readers with solar telescopes are encouraged to monitor developments.

more images: from Robert Arnold of Isle of Skye, Scotland; from Steve Riegel of Santa Maria, CA; from Cai-Uso Wohler of Bispingen, Germany; from Rogerio Marcon of Campinas SP Brasil; from Alan Friedman of Buffalo, NY; from Matthias Juergens of Gnevsdorf, Germany;

Source – Spaceweather.com

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