Solar flare 2 March
The Extreme Ultraviolet Imager (EUI) and the X-ray Spectrometer/Telescope (STIX) instruments aboard the ESA/NASA Solar Orbiter spacecraft captured a solar flare erupting from an active region on the face of the Sun on 2 March 2022. The EUI images show extreme ultraviolet light with a wavelength of 17 nanometers (174 Ångstroms) being emitted by solar atmospheric gasses with a temperature of around one million degrees Celsius.
EUI takes both full disc images using the Full Sun Imager (FSI) telescope, as well as detailed images of a smaller region using the High Resolution Imager (HRIEUV) telescope. The STIX detections have been overlaid on the zoomed-in EUI HRIEUV images. STIX records X-rays in two different energy bands. Lower energy X-rays are displayed in red, higher energy X-rays in blue. The flare emits mainly extreme ultraviolet light and lower energy X-rays but as it develops it also generates some higher energy X-rays too.
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