Fig. 1.

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Overview of the solar corona of 30 May 2020 as seen by EUI on board Solar Orbiter. Left: location of the HRI field of view is shown as a white square on an EUI/FSI 17.4 nm image. Stonyhurst coordinates are shown, with the crossing of the two yellow great circles indicating the Earth/SDO sub-solar point. We note that the spacecraft roll angle is aligned with the ‘north’ direction of the orbital plane of the Solar Orbiter – and not with the solar meridional plane. The image visualisation is from JHelioviewer (Müller et al. 2017). Middle: first image of the HRIEUV sequence. Right: sub-field corresponding to the red square indicated in the left two panels. The brightest features correspond to the “campfires” studied in this paper.

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