6–10 Jul 2026
University of the Western Cape
Africa/Johannesburg timezone
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The Sun in Focus: From Early Telescopes to High-Resolution Physics

10 Jul 2026, 13:30
55m
Jakes Gerwel Hall (University of the Western Cape)

Jakes Gerwel Hall

University of the Western Cape

Oral Presentation Track H - Plenaries Plenary

Speaker

Prof. Eamon Scullion (University of Northumbria Newcastle upon Tyne (UK))

Description

From its earliest presence in southern African cosmology, where the Sun was revered in San and Nguni traditions as a life-giving and regulating force, to its formal study within the Royal Astronomical Society era of systematic observation, our understanding of the Sun has evolved through a remarkable fusion of culture, geography, and technology. This plenary traces the evolution of solar observation from early sunspot sketches to modern diffraction-limited imaging with the Swedish 1-m Solar Telescope and more recently with the Daniel K Inouye 4-m Solar Telescope. These advances have transformed the Sun from a distant luminous disk into a dynamic, multi-layered plasma system, where fine-scale magnetic structuring and energy transport processes are now resolved across multiple spectral domains. The talk highlights how increasing spatial, temporal, and spectral resolution, combined with global collaborations involving institutions such as the South African Astronomical Observatory, has deepened our understanding of the coupled photosphere–chromosphere–corona system and its role in space weather. By bridging heritage, international collaboration, and cutting-edge technology, we move closer to unlocking the fundamental plasma physics governing our nearest star.

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Author

Prof. Eamon Scullion (University of Northumbria Newcastle upon Tyne (UK))

Presentation materials

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