<p>This book fills a significant gap in the historiography of science by examining the overlooked contributions of non-astronomical personnel in the early National Astronomical Observatory of Chile. Drawing upon David Edgerton's critique of the bias towards academic scientists in historical narratives, this research delves into the roles of other scientists, technicians, collaborators, and other support staff in shaping scientific endeavors. The book analyzes archival documents and reveals the essential yet often unacknowledged labor involved in routine scientific tasks. By challenging the hierarchical structure of observatory organizations and spotlighting the significance of routine work, the book redefines the production of scientific knowledge beyond the conventional focus on eminent scientists. Emphasizing the importance of failures, conflicts, and controversies, this book unveils the hidden narratives of everyday scientific labor, offering a more comprehensive understanding of the history of astronomy in Chile.</p>