{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.2,"date":"2032-07-19","moon_free_dark_hours":0.65,"moon_illumination":89,"moon_separation":72.5,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"18:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.25,"date":"2032-07-20","moon_free_dark_hours":0.0,"moon_illumination":95,"moon_separation":86.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:55","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.3,"date":"2032-07-21","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":101.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.35,"date":"2032-07-22","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":116.2,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:50","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.4,"date":"2032-07-23","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":131.2,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:45","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.45,"date":"2032-07-24","moon_free_dark_hours":0.0,"moon_illumination":93,"moon_separation":146.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:40","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.5,"date":"2032-07-25","moon_free_dark_hours":0.0,"moon_illumination":86,"moon_separation":160.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:35","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.55,"date":"2032-07-26","moon_free_dark_hours":0.22,"moon_illumination":76,"moon_separation":171.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.61,"date":"2032-07-27","moon_free_dark_hours":0.83,"moon_illumination":66,"moon_separation":167.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:30","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.66,"date":"2032-07-28","moon_free_dark_hours":1.47,"moon_illumination":55,"moon_separation":154.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:25","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.71,"date":"2032-07-29","moon_free_dark_hours":2.12,"moon_illumination":44,"moon_separation":141.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:20","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.77,"date":"2032-07-30","moon_free_dark_hours":2.85,"moon_illumination":34,"moon_separation":128.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:15","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.82,"date":"2032-07-31","moon_free_dark_hours":3.63,"moon_illumination":25,"moon_separation":116.2,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.88,"date":"2032-08-01","moon_free_dark_hours":4.47,"moon_illumination":16,"moon_separation":103.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.93,"date":"2032-08-02","moon_free_dark_hours":5.37,"moon_illumination":10,"moon_separation":91.5,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:05","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":5.99,"date":"2032-08-03","moon_free_dark_hours":5.98,"moon_illumination":5,"moon_separation":79.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"17:00","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.05,"date":"2032-08-04","moon_free_dark_hours":6.03,"moon_illumination":2,"moon_separation":67.5,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:55","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.1,"date":"2032-08-05","moon_free_dark_hours":6.08,"moon_illumination":0,"moon_separation":55.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:55","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.16,"date":"2032-08-06","moon_free_dark_hours":6.13,"moon_illumination":1,"moon_separation":44.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.22,"date":"2032-08-07","moon_free_dark_hours":6.2,"moon_illumination":3,"moon_separation":32.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:45","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.27,"date":"2032-08-08","moon_free_dark_hours":6.25,"moon_illumination":7,"moon_separation":21.1,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:40","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.33,"date":"2032-08-09","moon_free_dark_hours":6.32,"moon_illumination":12,"moon_separation":10.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:35","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.39,"date":"2032-08-10","moon_free_dark_hours":6.38,"moon_illumination":19,"moon_separation":8.1,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.44,"date":"2032-08-11","moon_free_dark_hours":6.07,"moon_illumination":27,"moon_separation":17.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:30","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.5,"date":"2032-08-12","moon_free_dark_hours":5.57,"moon_illumination":36,"moon_separation":29.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:25","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.56,"date":"2032-08-13","moon_free_dark_hours":4.98,"moon_illumination":46,"moon_separation":41.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:20","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.62,"date":"2032-08-14","moon_free_dark_hours":4.33,"moon_illumination":56,"moon_separation":54.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.67,"date":"2032-08-15","moon_free_dark_hours":3.55,"moon_illumination":67,"moon_separation":67.2,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.73,"date":"2032-08-16","moon_free_dark_hours":2.65,"moon_illumination":77,"moon_separation":80.9,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.79,"date":"2032-08-17","moon_free_dark_hours":1.6,"moon_illumination":86,"moon_separation":95.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":50.2,"transit_local":"16:05","verdict":"unknown","weather_source":"none","weekday":"Tue"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2032-07-19","target":{"dec":2.05238823,"morphology":"E3","name":"3C 273","ra":187.27791594,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=3C%20273","source":"sesame","type":"BLL","type_text":"BL Lac object \u2014 a blazar","vmag":14.83}}