File:SDO 20120228 001050 4096 0211 (AIA).jpg

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DescriptionSDO 20120228 001050 4096 0211 (AIA).jpg	English: AIA 0211 channel (as well as AIA 335) highlights the active region of the outer atmosphere of the Sun - the corona. Active regions, solar flares, and coronal mass ejections will appear bright here. The dark areas - called coronal holes - are places where very little radiation is emitted, yet are the main source of solar wind particles. Where: Active regions of the corona Wavelength: 211 angstroms (0.0000000211 m) = Extreme Ultraviolet Primary ions seen: 13 times ionized iron (Fe XIV) Characteristic temperature: 2 million K (3.6 million F)
Date	Taken on 28 February 2012, 00:10:50
Source	20120228_001050_4096_0211
Author	Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.

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Credit and attribution belongs to the Atmospheric Imaging Assembly (AIA) team, NASA/GSFC/Solar Dynamics Observatory

This image or video was catalogued by Goddard Space Flight Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: 20120228_001050_4096_0211.

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