{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-05-23","schedule":[{"end":"2025-05-24T02:55Z","end_local":"05:55","hours":9.25,"mean_quality":0.0,"start":"2025-05-23T17:40Z","start_local":"20:40","target":null}],"targets":[{"best_window":null,"dec":30.66017511,"moon_separation":22.9,"name":"M33","quality_hours":0.0,"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":0,"score_astronomy":0,"score_weather":12,"transit":{"airmass":1.02,"alt":79.1,"az":182.7,"t":"2025-05-24T07:50Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2025-05-24T01:50Z","end_local":"04:50","hours":8.17,"label":"unusable","mean_quality":0.0,"start":"2025-05-23T17:40Z","start_local":"20:40"},{"end":"2025-05-24T02:00Z","end_local":"05:00","hours":0.17,"label":"poor","mean_quality":0.03,"start":"2025-05-24T01:50Z","start_local":"04:50"},{"end":"2025-05-24T02:55Z","end_local":"05:55","hours":0.92,"label":"unusable","mean_quality":0.0,"start":"2025-05-24T02:00Z","start_local":"05:00"}]}],"unscheduled":[{"name":"M33","why":"Overcast (\u226580 % cloud) for 6.2 of 8.2 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}