{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-04-11","schedule":[{"end":"2025-04-12T03:50Z","end_local":"06:50","hours":10.92,"mean_quality":0.0,"start":"2025-04-11T16:55Z","start_local":"19:55","target":null}],"targets":[{"best_window":null,"dec":22.71085365,"moon_separation":111.4,"name":"HD 189733","quality_hours":0.06,"ra":300.18213726,"resolved":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648},"score":1,"score_astronomy":41,"score_weather":3,"transit":{"airmass":1.06,"alt":71.1,"az":179.8,"t":"2025-04-12T05:00Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-04-12T02:00Z","end_local":"05:00","hours":9.08,"label":"unusable","mean_quality":0.0,"start":"2025-04-11T16:55Z","start_local":"19:55"},{"end":"2025-04-12T03:00Z","end_local":"06:00","hours":1.0,"label":"poor","mean_quality":0.06,"start":"2025-04-12T02:00Z","start_local":"05:00"},{"end":"2025-04-12T03:50Z","end_local":"06:50","hours":0.83,"label":"unusable","mean_quality":0.0,"start":"2025-04-12T03:00Z","start_local":"06:00"}]}],"unscheduled":[{"name":"HD 189733","why":"Overcast (\u226580 % cloud) for 8.8 of 9.8 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}
