Solar Orbiter Extreme Ultraviolet Imager (EUI) images are now available via helioviewer.org.

Solar Orbiter was launched on February 9th, 2020. It is designed to take in-situ measurements of the inner heliosphere and nascent solar wind, and perform observations of the Sun’s polar regions. Solar Orbiter orbits the Sun (not the Earth) and its orbital inclination and distance from the Sun will change substantially during the mission lifetime to get ever better views of the Sun’s polar regions. Most observations will be from off the Sun-Earth line (note that most STEREO observations have been taken from well away from the Sun-Earth line). Additionally, given the mission profile, data download rates and latencies can vary, and so images close to real time are nominally not available.

EUI observes the Sun in extreme ultraviolet light, and consists of two High Resolution Imagers (HRIs) and one Full Sun Imager (FSI). The HRIs take high resolution images of portions of the solar atmosphere - they do not view the entire disk of the Sun. The FSI views the full disk of the Sun, and also images a wider field of view compared to AIA, and so can image the extended solar corona.

Data from EUI are processed into images for use with helioviewer.org and JHelioviewer by the Helioviewer Project partner institute the Royal Observatory of Belgium. We hope you enjoy examining EUI images.