{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-11-21","schedule":[{"end":"2025-11-22T05:20Z","end_local":"07:20","hours":14.42,"mean_quality":0.0,"start":"2025-11-21T14:55Z","start_local":"16:55","target":null}],"targets":[{"best_window":null,"dec":38.78368896,"moon_separation":70.1,"name":"Vega","quality_hours":0.02,"ra":279.23473479,"resolved":{"common_name":"Vega","dec":38.78368896,"name":"* alf Lyr","ra":279.23473479,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=Vega","source":"sesame","spectral_type":"A0V","type":"dS*","type_text":"delta Scuti variable","vmag":0.03},"score":0,"score_astronomy":58,"score_weather":1,"transit":{"airmass":1.0,"alt":87.1,"az":177.2,"t":"2025-11-21T12:55Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2025-11-21T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2025-11-21T14:55Z","start_local":"16:55"},{"end":"2025-11-21T16:00Z","end_local":"18:00","hours":0.5,"label":"poor","mean_quality":0.04,"start":"2025-11-21T15:30Z","start_local":"17:30"},{"end":"2025-11-22T05:20Z","end_local":"07:20","hours":13.33,"label":"unusable","mean_quality":0.0,"start":"2025-11-21T16:00Z","start_local":"18:00"}]}],"unscheduled":[{"name":"Vega","why":"Overcast (\u226580 % cloud) for 12.8 of 13.3 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}