{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-05-13","schedule":[{"end":"2026-05-14T03:05Z","end_local":"06:05","hours":9.58,"mean_quality":0.0,"start":"2026-05-13T17:30Z","start_local":"20:30","target":null}],"targets":[{"best_window":null,"dec":38.78368896,"moon_separation":86.2,"name":"Vega","quality_hours":0.14,"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":2,"score_astronomy":100,"score_weather":2,"transit":{"airmass":1.0,"alt":87.1,"az":173.8,"t":"2026-05-14T01:30Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-05-13T19:05Z","end_local":"22:05","hours":1.58,"label":"unusable","mean_quality":0.0,"start":"2026-05-13T17:30Z","start_local":"20:30"},{"end":"2026-05-13T20:00Z","end_local":"23:00","hours":0.92,"label":"poor","mean_quality":0.15,"start":"2026-05-13T19:05Z","start_local":"22:05"},{"end":"2026-05-14T03:05Z","end_local":"06:05","hours":7.08,"label":"unusable","mean_quality":0.0,"start":"2026-05-13T20:00Z","start_local":"23:00"}]}],"unscheduled":[{"name":"Vega","why":"Overcast (\u226580 % cloud) for 7.5 of 8.5 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}