The objective of this 5-day workshop is to bring scholars from distinct cultures of inquiry together to share the specific ways in which people in different times and places developed mathematics to model eclipse phenomena, with a chronological focus on the period 1650-1922, and to trace the circulation and development of these technical insights and practices globally. The workshop will include academic papers from a range of both established and early-career researchers alongside workshops designed to connect participants with eclipse-related methods and physical processes of mathematical knowledge-making, as well as to consider different forms of research output related to eclipse research and how this changed over the period under investigation and continues to develop. The aim is to bring together a cross-cultural cohort of scholars with the vision of generating a broader, coherent sense of shared ownership of the mathematical tradition of eclipse reckoning.