{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-09-05","schedule":[{"end":"2025-09-06T03:55Z","end_local":"06:55","hours":11.17,"mean_quality":0.0,"start":"2025-09-05T16:45Z","start_local":"19:45","target":null}],"targets":[{"best_window":null,"dec":38.78368896,"moon_separation":69.5,"name":"Vega","quality_hours":0.0,"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":61,"score_weather":0,"transit":{"airmass":1.0,"alt":87.1,"az":185.9,"t":"2025-09-05T18:00Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2025-09-06T03:55Z","end_local":"06:55","hours":11.17,"label":"unusable","mean_quality":0.0,"start":"2025-09-05T16:45Z","start_local":"19:45"}]}],"unscheduled":[{"name":"Vega","why":"Overcast (\u226580 % cloud) for 7.7 of 10.1 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}