Julieta Dufour — Merlo, Province of San Luis

Official source account — 2022 annual report, printed page 23: Julieta Dufour noticed a luminous point near the hills only when reviewing a landscape photograph from Merlo. CIAE tested the relationship between the suspect light and bright sources in the image using optical geometry. The pattern matched an internal lens reflection. The agency concluded that the feature was a lens flare and classified the explanation Type A. The summaries distinguish reported observations from the agency’s proposed explanations. Source Type A/B ratings describe explanatory confidence and are not encounter classes. The map uses an approximate GeoNames locality centroid, not the observation point.