the map is not the territory, but without a map nobody leaves the building.
The existing star charts were drawn from a single vantage point and assumed the observer was stationary. Nobody questioned this until the second telescope went online and the coordinates stopped agreeing. Two instruments, same sky, different answers.
The problem was not the instruments. The problem was that every chart encoded the assumption that the observer's position was the origin. When you remove that assumption, the geometry of the entire catalog changes. Quietly. Everywhere at once.
We pointed both telescopes at the same 400 reference objects and logged every discrepancy. The drift was not random. It followed a curve that only appeared when you plotted both datasets on the same axis. The pattern had been there for years, hiding inside the margin of error.
Instead of picking one telescope as "correct," we built a notation that carried both perspectives at once. Any position in the new system includes a reference to the observer who recorded it. The chart doesn't flatten the disagreement. It holds it.
The reconciled dataset is now the reference standard for the northern array. Three other observatories adopted the multi-origin notation within the first year, not because we asked them to but because their own data started making more sense when they used it.
Fourteen objects in the original catalog turned out to be the same seven objects recorded twice from different positions. The duplicates had been treated as separate discoveries for over a decade. Removing them changed the density map of the entire quadrant.
The hardest part was not building the new system. It was convincing people that the old coordinates were a perspective, not a fact. Once that landed, everything else followed. The notation is just bookkeeping. The shift in how observers think about their own position -- that was the actual deliverable.