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Fig. 2.
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Sun center H I 121.6 nm observations from September 3, 2015, from the CLASP-SJ (left) and simultaneous He II 30.4 nm observations from AIA degraded to match the CLASP-SJ resolution (right). The black band in the center of the CLASP-SJ image is the entrance slit of the spectrometer. Solar north is up.
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