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X-class solar flare, October 25, 2013

X-class solar flare, October 25, 2013

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NASA / GSFC / Emily Lakdawalla

X-class solar flare, October 25, 2013
2013 marks the peak of the Sun's 11-year solar activity cycle. The Sun put out several X-class solar flares in October, including this one on October 25. The images for this photo were taken by the Solar Dynamics Observatory at 15:00 UTC through several ultraviolet filters.

The image is composed of an RGB stack of images taken through filters with wavelengths of 211, 193, and 131 nanometers. A fourth image, taken through a 304-nanometer filter, was dropped on top as a transparent overlay to add the granular texture of the solar photosphere.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. For uses not allowed by that license, contact us to request publication permission from the copyright holder: Emily Lakdawalla

Original image data dated on or about October 25, 2013

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