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Impact of the 2026 August 12 Solar Eclipse on Twilight in the Mediterranean Region and other Parts of Europe
JOA 2026, Vol. 16, No. 3, Page 13 Author(s): M. KrukarAbstract: The total solar eclipse of 2026 August 12 presents a unique observational opportunity to investigate atmospheric dynamics within the twilight zone. In certain locations, totality will occur in close proximity to sunset, resulting in partial obscuration of varying magnitudes coinciding with the onset of civil twilight. The primary scientific focus of this study is the culmination of the eclipse as it occurs during successive stages of dusk along the trajectory of the lunar umbra. Because of paucity of observations of this kind of event the principal objective of this paper is to model the anticipated atmospheric and photometric phenomena. These analyses rely primarily on simulations utilising the ShowMySky 0.6 atmospheric rendering engine within Stellarium 25.4, currently recognised as a robust tool for modelling sky luminance and outdoor radiative conditions. Furthermore, orbital perspective simulations generated via SpaceEngine 0.99 are employed to visualise the interaction between the lunar shadow and the Earth‘s terminator line at a macroscopic scale.