{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-03-14","schedule":[{"end":"2025-03-15T04:35Z","end_local":"06:35","hours":12.17,"mean_quality":0.0,"start":"2025-03-14T16:25Z","start_local":"18:25","target":null}],"targets":[{"best_window":null,"dec":24.11388889,"moon_separation":121.9,"name":"M45","quality_hours":0.13,"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":3,"score_astronomy":37,"score_weather":7,"transit":{"airmass":1.05,"alt":72.5,"az":180.7,"t":"2025-03-14T14:40Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-03-14T16:55Z","end_local":"18:55","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-03-14T16:25Z","start_local":"18:25"},{"end":"2025-03-14T18:00Z","end_local":"20:00","hours":1.08,"label":"poor","mean_quality":0.12,"start":"2025-03-14T16:55Z","start_local":"18:55"},{"end":"2025-03-15T04:35Z","end_local":"06:35","hours":10.58,"label":"unusable","mean_quality":0.0,"start":"2025-03-14T18:00Z","start_local":"20:00"}]}],"unscheduled":[{"name":"M45","why":"Overcast (\u226580 % cloud) for 10.2 of 11.3 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}