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Observational Signature of a Magnetic Tornado
Credit: Scullion, Wedemeyer-Böhm et al.
Intensity image recorded with the Swedish 1-m Solar Telescope in the line core of the spectral line of singly ionised calcium (infrared triplet, wavelength 854.2 nm). The detected chromospheric swirl (dark ring) is the observational signature of a magnetic tornado. Image released June 27, 2012.