Recent golden hours

How the peak is chosen. Within ±3° of the horizon the peak is the frame whose sky is reddest (≥1% red/amber); when nothing is coloured it is the frame nearest −2°, where the sky is deepest and the campus lights are on. Evenings score all three sky thirds (sunset colour here lands east and centre). Rule updated 16 Sep 2026 and applied to every day below; frames re-chosen under it say so.