{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-05-12","schedule":[{"end":"2027-05-12T21:30Z","end_local":"00:30","hours":4.0,"mean_quality":0.0,"start":"2027-05-12T17:30Z","start_local":"20:30","target":null},{"end":"2027-05-13T01:55Z","end_local":"04:55","hours":4.42,"mean_quality":0.76,"start":"2027-05-12T21:30Z","start_local":"00:30","target":"HD 189733"},{"end":"2027-05-13T03:05Z","end_local":"06:05","hours":1.17,"mean_quality":0.0,"start":"2027-05-13T01:55Z","start_local":"04:55","target":null}],"targets":[{"best_window":{"end":"2027-05-13T01:10Z","end_local":"04:10","hours":3.08,"label":"good","mean_quality":0.87,"start":"2027-05-12T22:05Z","start_local":"01:05"},"dec":22.71085365,"moon_separation":137.2,"name":"HD 189733","quality_hours":3.44,"ra":300.18213726,"resolved":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648},"score":null,"score_astronomy":86,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":179.8,"t":"2027-05-13T03:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-05-12T21:30Z","end_local":"00:30","hours":4.0,"label":"unusable","mean_quality":0.0,"start":"2027-05-12T17:30Z","start_local":"20:30"},{"end":"2027-05-12T22:05Z","end_local":"01:05","hours":0.58,"label":"marginal","mean_quality":0.49,"start":"2027-05-12T21:30Z","start_local":"00:30"},{"end":"2027-05-13T01:10Z","end_local":"04:10","hours":3.08,"label":"good","mean_quality":0.87,"start":"2027-05-12T22:05Z","start_local":"01:05"},{"end":"2027-05-13T01:55Z","end_local":"04:55","hours":0.75,"label":"marginal","mean_quality":0.5,"start":"2027-05-13T01:10Z","start_local":"04:10"},{"end":"2027-05-13T02:35Z","end_local":"05:35","hours":0.67,"label":"poor","mean_quality":0.15,"start":"2027-05-13T01:55Z","start_local":"04:55"},{"end":"2027-05-13T03:05Z","end_local":"06:05","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-05-13T02:35Z","start_local":"05:35"}]}],"unscheduled":[],"warnings":[]}