Coronae of the Sun and cool stars attract continuously growing attention as the birthplaces of most powerful energy releases in the solar and stellar systems, such as coronal mass ejections and flares, with important implications for space weather and the estimation of habitable zones of exoplanets. In addition, the solar corona is a plasma environment open to high-resolution multi-wavelength observation, and hence is a natural laboratory for the study of a manifold of plasma physics processes. The array of recently commissioned dedicated ground-based and spaceborne observational facilities, such as Parker Solar Probe, Solar Orbiter, SUTRI (Solar Upper Transition Region Imager), Aditya L1, ALMA (Atacama Large Millimeter/ submillimeter Array), ASO-S (Advanced Space-based Solar Observatory), CHASE (Chinese Hα Solar Explorer), COronal Diagnostic EXperiment (CODEX), DKIST (Daniel K. Inouye Solar Telescope), DSRT (Daocheng Solar Radio Telescope), NVST (New Vacuum Solar Telescope), PUNCH (Polarimeter to UNify the Corona and Heliosphere), SRH (Siberian Radio Heliograph), TESS (Transiting Exoplanet Survey Satellite) and UCoMP (Upgraded Coronal Multi-channel Polarimeter) have offered the research community a new look at the corona of the Sun. In particular, a major progress is being reached in the detection and modelling of coronal magnetohydrodynamic wave processes, coronal thermodynamics including coronal rain and prominence formation, various instabilities, including the initiation of coronal mass ejections, plasma jets, and solar radiophysics. Likewise, there is a rapid development of theoretical models, including massive ab initio numerical simulations and novel data analysis approaches. A novel research avenue is the use of the machine learning and artificial intelligence techniques and methods. Data of the upcoming missions and facilities, such as CODEX, DSRT, Proba-3, and SKA, are anticipated to further revolutionise our understanding of physical processes operating in the corona. Moreover, the new generation of night sky survey telescopes, X-ray observatories from space and radio instruments allows for the study of stellar coronae, opening promising perspectives for the comparative study of solar and stellar coronal processes and exploiting the solar-stellar analogy. Both solar and stellar research is expected to benefit from such a study, especially in the context of flaring energy releases including superflares, solar and stellar winds, coronal heating, estimation of habitable zones of exoplanets.

The primary aim of the symposium is to establish a forum for the specialists working on various aspects of solar and stellar coronae, identify similarities and differences in solar and stellar coronal processes, stimulate knowledge transfer, establish effective research collaborations, and broaden the research experience of young researchers.