{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2031-03-31","schedule":[{"end":"2031-03-31T18:25Z","end_local":"21:25","hours":1.75,"mean_quality":0.0,"start":"2031-03-31T16:40Z","start_local":"19:40","target":null},{"end":"2031-03-31T19:05Z","end_local":"22:05","hours":0.67,"mean_quality":0.39,"start":"2031-03-31T18:25Z","start_local":"21:25","target":"M45"},{"end":"2031-04-01T04:05Z","end_local":"07:05","hours":9.0,"mean_quality":0.0,"start":"2031-03-31T19:05Z","start_local":"22:05","target":null}],"targets":[{"best_window":{"end":"2031-03-31T19:05Z","end_local":"22:05","hours":0.67,"label":"marginal","mean_quality":0.39,"start":"2031-03-31T18:25Z","start_local":"21:25"},"dec":24.11388889,"moon_separation":51.8,"name":"M45","quality_hours":0.51,"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":null,"score_astronomy":6,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":180.5,"t":"2031-03-31T13:35Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2031-03-31T17:15Z","end_local":"20:15","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2031-03-31T16:40Z","start_local":"19:40"},{"end":"2031-03-31T18:25Z","end_local":"21:25","hours":1.17,"label":"poor","mean_quality":0.17,"start":"2031-03-31T17:15Z","start_local":"20:15"},{"end":"2031-03-31T19:05Z","end_local":"22:05","hours":0.67,"label":"marginal","mean_quality":0.39,"start":"2031-03-31T18:25Z","start_local":"21:25"},{"end":"2031-03-31T19:15Z","end_local":"22:15","hours":0.17,"label":"poor","mean_quality":0.28,"start":"2031-03-31T19:05Z","start_local":"22:05"},{"end":"2031-04-01T04:05Z","end_local":"07:05","hours":8.83,"label":"unusable","mean_quality":0.0,"start":"2031-03-31T19:15Z","start_local":"22:15"}]}],"unscheduled":[],"warnings":[]}
