{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-01-28","schedule":[{"end":"2026-01-29T05:40Z","end_local":"07:40","hours":14.17,"mean_quality":0.0,"start":"2026-01-28T15:30Z","start_local":"17:30","target":null}],"targets":[{"best_window":null,"dec":-5.3876,"moon_separation":34.6,"name":"M42","quality_hours":0.0,"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":0,"score_astronomy":21,"score_weather":0,"transit":{"airmass":1.47,"alt":42.9,"az":179.9,"t":"2026-01-28T19:25Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2026-01-29T05:40Z","end_local":"07:40","hours":14.17,"label":"unusable","mean_quality":0.0,"start":"2026-01-28T15:30Z","start_local":"17:30"}]}],"unscheduled":[{"name":"M42","why":"Overcast (\u226580 % cloud) for 13.1 of 13.1 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}