IRIS Movie of the Day
At least once a week a movie of the Sun taken by NASA's Interface Region Imaging Spectrograph (IRIS) is posted by one of the scientists operating the instrument.
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19 Mar 2019
A trio of flares in AR 12192
Credit: IRIS, LMSAL/NASA, Gregal Vissers (ISP/SU)
On October 25 2014 IRIS observed NOAA AR 12192 in coordination with the Dunn Solar Telescope and caught a succession of three flares of increasing strength (C5.1, C9.7, and X1.0) occurring about an hour apart of each other. These C II slit-jaw images show the flare ribbons beautifully, with the lower intensity flares only partially covered by the IRIS slit, while both flare ribbons of the X1.0 flare cross the slit. Towards the end post-flare loop coronal rain can be observed moving out of the top of the field-of-view.