{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2040-12-23","schedule":[{"end":"2040-12-23T18:00Z","end_local":"20:00","hours":3.17,"mean_quality":0.0,"start":"2040-12-23T14:50Z","start_local":"16:50","target":null},{"end":"2040-12-24T01:30Z","end_local":"03:30","hours":7.5,"mean_quality":0.62,"start":"2040-12-23T18:00Z","start_local":"20:00","target":"M42"},{"end":"2040-12-24T05:50Z","end_local":"07:50","hours":4.33,"mean_quality":0.0,"start":"2040-12-24T01:30Z","start_local":"03:30","target":null}],"targets":[{"best_window":{"end":"2040-12-23T23:20Z","end_local":"01:20","hours":4.83,"label":"good","mean_quality":0.68,"start":"2040-12-23T18:30Z","start_local":"20:30"},"dec":-5.3876,"moon_separation":74.4,"name":"M42","quality_hours":4.64,"ra":83.8201,"resolved":{"common_name":"Great Orion Nebula","dec":-5.3876,"name":"M 42","ra":83.8201,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M42","source":"sesame","type":"HII","type_text":"HII region \u2014 a star-forming nebula"},"score":null,"score_astronomy":82,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":179.6,"t":"2040-12-23T21:45Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2040-12-23T18:00Z","end_local":"20:00","hours":3.17,"label":"unusable","mean_quality":0.0,"start":"2040-12-23T14:50Z","start_local":"16:50"},{"end":"2040-12-23T18:30Z","end_local":"20:30","hours":0.5,"label":"marginal","mean_quality":0.49,"start":"2040-12-23T18:00Z","start_local":"20:00"},{"end":"2040-12-23T23:20Z","end_local":"01:20","hours":4.83,"label":"good","mean_quality":0.68,"start":"2040-12-23T18:30Z","start_local":"20:30"},{"end":"2040-12-24T01:30Z","end_local":"03:30","hours":2.17,"label":"marginal","mean_quality":0.5,"start":"2040-12-23T23:20Z","start_local":"01:20"},{"end":"2040-12-24T01:35Z","end_local":"03:35","hours":0.08,"label":"poor","mean_quality":0.28,"start":"2040-12-24T01:30Z","start_local":"03:30"},{"end":"2040-12-24T05:50Z","end_local":"07:50","hours":4.25,"label":"unusable","mean_quality":0.0,"start":"2040-12-24T01:35Z","start_local":"03:35"}]}],"unscheduled":[],"warnings":[]}
