{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-18","schedule":[{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":13.08,"mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35","target":null}],"targets":[{"best_window":null,"dec":30.66017511,"moon_separation":139.9,"name":"M33","quality_hours":0.12,"ra":23.46206906,"resolved":{"common_name":"Triangulum Pinwheel","dec":30.66017511,"morphology":"SA(s)cd","name":"M 33","ra":23.46206906,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M33","source":"sesame","type":"GiG","type_text":"galaxy in a group","vmag":5.72},"score":1,"score_astronomy":100,"score_weather":1,"transit":{"airmass":1.02,"alt":79.1,"az":179.1,"t":"2025-10-18T22:05Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-19T03:00Z","end_local":"06:00","hours":11.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"},{"end":"2025-10-19T04:05Z","end_local":"07:05","hours":1.08,"label":"poor","mean_quality":0.11,"start":"2025-10-19T03:00Z","start_local":"06:00"},{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2025-10-19T04:05Z","start_local":"07:05"}]}],"unscheduled":[{"name":"M33","why":"Overcast (\u226580 % cloud) for 10.9 of 12.1 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}