{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-11-19","schedule":[{"end":"2027-11-19T16:40Z","end_local":"18:40","hours":1.75,"mean_quality":0.0,"start":"2027-11-19T14:55Z","start_local":"16:55","target":null},{"end":"2027-11-20T03:40Z","end_local":"05:40","hours":11.0,"mean_quality":0.75,"start":"2027-11-19T16:40Z","start_local":"18:40","target":"M45"},{"end":"2027-11-20T05:20Z","end_local":"07:20","hours":1.67,"mean_quality":0.0,"start":"2027-11-20T03:40Z","start_local":"05:40","target":null}],"targets":[{"best_window":{"end":"2027-11-20T02:25Z","end_local":"04:25","hours":9.25,"label":"good","mean_quality":0.8,"start":"2027-11-19T17:10Z","start_local":"19:10"},"dec":24.11388889,"moon_separation":73.1,"name":"M45","quality_hours":8.29,"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":100,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":180.6,"t":"2027-11-19T22:15Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-11-19T16:40Z","end_local":"18:40","hours":1.75,"label":"unusable","mean_quality":0.0,"start":"2027-11-19T14:55Z","start_local":"16:55"},{"end":"2027-11-19T17:10Z","end_local":"19:10","hours":0.5,"label":"marginal","mean_quality":0.5,"start":"2027-11-19T16:40Z","start_local":"18:40"},{"end":"2027-11-20T02:25Z","end_local":"04:25","hours":9.25,"label":"good","mean_quality":0.8,"start":"2027-11-19T17:10Z","start_local":"19:10"},{"end":"2027-11-20T03:40Z","end_local":"05:40","hours":1.25,"label":"marginal","mean_quality":0.51,"start":"2027-11-20T02:25Z","start_local":"04:25"},{"end":"2027-11-20T03:50Z","end_local":"05:50","hours":0.17,"label":"poor","mean_quality":0.16,"start":"2027-11-20T03:40Z","start_local":"05:40"},{"end":"2027-11-20T05:20Z","end_local":"07:20","hours":1.5,"label":"unusable","mean_quality":0.0,"start":"2027-11-20T03:50Z","start_local":"05:50"}]}],"unscheduled":[],"warnings":[]}
