{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-09-02","schedule":[{"end":"2026-09-03T03:50Z","end_local":"06:50","hours":11.0,"mean_quality":0.0,"start":"2026-09-02T16:50Z","start_local":"19:50","target":null}],"targets":[{"best_window":null,"dec":44.25788576,"moon_separation":76.4,"name":"V1057 Cyg","quality_hours":0.45,"ra":314.72388973,"resolved":{"dec":44.25788576,"name":"EM* LkHA 190","ra":314.72388973,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V1057%20Cyg","source":"sesame","spectral_type":"F7/G3I/IIe","type":"Or*","type_text":"Orion-type variable \u2014 a young, erupting star","vmag":12.33},"score":7,"score_astronomy":100,"score_weather":7,"transit":{"airmass":1.0,"alt":87.3,"az":351.9,"t":"2026-09-02T20:35Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-09-02T17:25Z","end_local":"20:25","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-09-02T16:50Z","start_local":"19:50"},{"end":"2026-09-02T18:00Z","end_local":"21:00","hours":0.58,"label":"poor","mean_quality":0.02,"start":"2026-09-02T17:25Z","start_local":"20:25"},{"end":"2026-09-02T20:00Z","end_local":"23:00","hours":2.0,"label":"unusable","mean_quality":0.0,"start":"2026-09-02T18:00Z","start_local":"21:00"},{"end":"2026-09-02T22:00Z","end_local":"01:00","hours":2.0,"label":"poor","mean_quality":0.22,"start":"2026-09-02T20:00Z","start_local":"23:00"},{"end":"2026-09-03T03:50Z","end_local":"06:50","hours":5.83,"label":"unusable","mean_quality":0.0,"start":"2026-09-02T22:00Z","start_local":"01:00"}]}],"unscheduled":[{"name":"V1057 Cyg","why":"Overcast (\u226580 % cloud) for 7.4 of 10.0 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}