{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-04-07","schedule":[{"end":"2026-04-08T03:55Z","end_local":"06:55","hours":11.08,"mean_quality":0.0,"start":"2026-04-07T16:50Z","start_local":"19:50","target":null}],"targets":[{"best_window":null,"dec":24.17805556,"moon_separation":156.6,"name":"M45","quality_hours":0.06,"ra":56.65833333,"resolved":{"common_name":"Seven Sisters","dec":24.17805556,"name":"Cl Melotte 22","ra":56.65833333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":1,"score_astronomy":4,"score_weather":19,"transit":{"airmass":1.05,"alt":72.6,"az":179.3,"t":"2026-04-07T13:05Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-04-07T17:25Z","end_local":"20:25","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-04-07T16:50Z","start_local":"19:50"},{"end":"2026-04-07T18:00Z","end_local":"21:00","hours":0.58,"label":"poor","mean_quality":0.11,"start":"2026-04-07T17:25Z","start_local":"20:25"},{"end":"2026-04-08T03:55Z","end_local":"06:55","hours":9.92,"label":"unusable","mean_quality":0.0,"start":"2026-04-07T18:00Z","start_local":"21:00"}]}],"unscheduled":[{"name":"M45","why":"no usable window tonight"}],"warnings":[]}
