The Dominion Astrophysical Observatory, Victoria, B.C.

The story opens with a concise sketch of how Canada’s early survey needs gave birth to an astronomical branch within the federal government. Guided by the nation’s first chief astronomer, a modest observatory in Ottawa was built to support boundary work, and its modest 15‑inch refractor quickly proved its scientific worth. Recognizing the limits of that instrument, the director championed a far larger reflector, sparking a lengthy process of design, contracts, and planning that set the stage for a major upgrade.

A careful search for the clearest skies led a small team to test five potential sites, and Victoria’s stable temperatures and steady “seeing” outshone the rest. There the massive 72‑inch reflecting telescope was erected, its optics sourced from Pittsburgh and its mount engineered in Cleveland, creating a facility capable of detailed spectroscopic study. Listeners will discover how this purposeful blend of location, engineering, and scientific ambition laid the groundwork for Canada’s early astronomical research.