{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-13","schedule":[{"end":"2025-10-14T04:35Z","end_local":"07:35","hours":12.92,"mean_quality":0.0,"start":"2025-10-13T15:40Z","start_local":"18:40","target":null}],"targets":[{"best_window":null,"dec":24.11388889,"moon_separation":53.0,"name":"M45","quality_hours":0.46,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":7,"score_astronomy":87,"score_weather":8,"transit":{"airmass":1.05,"alt":72.5,"az":181.7,"t":"2025-10-14T00:40Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-13T20:00Z","end_local":"23:00","hours":4.33,"label":"unusable","mean_quality":0.0,"start":"2025-10-13T15:40Z","start_local":"18:40"},{"end":"2025-10-13T23:00Z","end_local":"02:00","hours":3.0,"label":"poor","mean_quality":0.15,"start":"2025-10-13T20:00Z","start_local":"23:00"},{"end":"2025-10-14T04:35Z","end_local":"07:35","hours":5.58,"label":"unusable","mean_quality":0.0,"start":"2025-10-13T23:00Z","start_local":"02:00"}]}],"unscheduled":[{"name":"M45","why":"Overcast (\u226580 % cloud) for 8.8 of 11.8 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}