{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2031-01-07","schedule":[{"end":"2031-01-07T16:50Z","end_local":"18:50","hours":1.75,"mean_quality":0.0,"start":"2031-01-07T15:05Z","start_local":"17:05","target":null},{"end":"2031-01-07T21:05Z","end_local":"23:05","hours":4.25,"mean_quality":0.37,"start":"2031-01-07T16:50Z","start_local":"18:50","target":"M45"},{"end":"2031-01-08T05:50Z","end_local":"07:50","hours":8.75,"mean_quality":0.0,"start":"2031-01-07T21:05Z","start_local":"23:05","target":null}],"targets":[{"best_window":{"end":"2031-01-07T21:05Z","end_local":"23:05","hours":4.25,"label":"marginal","mean_quality":0.37,"start":"2031-01-07T16:50Z","start_local":"18:50"},"dec":24.11388889,"moon_separation":39.2,"name":"M45","quality_hours":2.67,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":null,"score_astronomy":31,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":179.5,"t":"2031-01-07T19:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2031-01-07T15:40Z","end_local":"17:40","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2031-01-07T15:05Z","start_local":"17:05"},{"end":"2031-01-07T16:50Z","end_local":"18:50","hours":1.17,"label":"poor","mean_quality":0.16,"start":"2031-01-07T15:40Z","start_local":"17:40"},{"end":"2031-01-07T21:05Z","end_local":"23:05","hours":4.25,"label":"marginal","mean_quality":0.37,"start":"2031-01-07T16:50Z","start_local":"18:50"},{"end":"2031-01-08T00:40Z","end_local":"02:40","hours":3.58,"label":"poor","mean_quality":0.25,"start":"2031-01-07T21:05Z","start_local":"23:05"},{"end":"2031-01-08T05:50Z","end_local":"07:50","hours":5.17,"label":"unusable","mean_quality":0.0,"start":"2031-01-08T00:40Z","start_local":"02:40"}]}],"unscheduled":[],"warnings":[]}