{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.59,"date":"2036-03-22","moon_free_dark_hours":7.97,"moon_illumination":22,"moon_separation":85.7,"score":null,"score_astronomy":1,"score_weather":null,"transit_alt":79.2,"transit_local":"13:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.54,"date":"2036-03-23","moon_free_dark_hours":8.53,"moon_illumination":14,"moon_separation":74.9,"score":null,"score_astronomy":1,"score_weather":null,"transit_alt":79.2,"transit_local":"13:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.48,"date":"2036-03-24","moon_free_dark_hours":8.47,"moon_illumination":8,"moon_separation":64.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.43,"date":"2036-03-25","moon_free_dark_hours":8.42,"moon_illumination":4,"moon_separation":53.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.38,"date":"2036-03-26","moon_free_dark_hours":8.37,"moon_illumination":1,"moon_separation":42.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.32,"date":"2036-03-27","moon_free_dark_hours":8.3,"moon_illumination":0,"moon_separation":33.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.27,"date":"2036-03-28","moon_free_dark_hours":8.25,"moon_illumination":1,"moon_separation":26.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.21,"date":"2036-03-29","moon_free_dark_hours":8.17,"moon_illumination":5,"moon_separation":24.2,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.16,"date":"2036-03-30","moon_free_dark_hours":7.05,"moon_illumination":10,"moon_separation":28.6,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"14:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.11,"date":"2036-03-31","moon_free_dark_hours":5.92,"moon_illumination":18,"moon_separation":37.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"14:20","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.05,"date":"2036-04-01","moon_free_dark_hours":4.8,"moon_illumination":27,"moon_separation":48.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"14:15","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":8.0,"date":"2036-04-02","moon_free_dark_hours":3.72,"moon_illumination":38,"moon_separation":60.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"14:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.94,"date":"2036-04-03","moon_free_dark_hours":2.72,"moon_illumination":49,"moon_separation":72.9,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"14:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.88,"date":"2036-04-04","moon_free_dark_hours":1.8,"moon_illumination":61,"moon_separation":85.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"14:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.83,"date":"2036-04-05","moon_free_dark_hours":1.0,"moon_illumination":72,"moon_separation":98.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"14:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.77,"date":"2036-04-06","moon_free_dark_hours":0.27,"moon_illumination":81,"moon_separation":111.7,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.72,"date":"2036-04-07","moon_free_dark_hours":0.0,"moon_illumination":89,"moon_separation":124.4,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.66,"date":"2036-04-08","moon_free_dark_hours":0.0,"moon_illumination":95,"moon_separation":136.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.6,"date":"2036-04-09","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":146.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:45","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.55,"date":"2036-04-10","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":154.1,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:40","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.49,"date":"2036-04-11","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":155.6,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.43,"date":"2036-04-12","moon_free_dark_hours":0.2,"moon_illumination":95,"moon_separation":150.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.38,"date":"2036-04-13","moon_free_dark_hours":1.23,"moon_illumination":89,"moon_separation":142.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:30","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.32,"date":"2036-04-14","moon_free_dark_hours":2.18,"moon_illumination":82,"moon_separation":132.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.26,"date":"2036-04-15","moon_free_dark_hours":3.08,"moon_illumination":74,"moon_separation":121.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.2,"date":"2036-04-16","moon_free_dark_hours":3.9,"moon_illumination":66,"moon_separation":111.0,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.14,"date":"2036-04-17","moon_free_dark_hours":4.63,"moon_illumination":56,"moon_separation":100.3,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.09,"date":"2036-04-18","moon_free_dark_hours":5.28,"moon_illumination":47,"moon_separation":89.5,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.1,"transit_local":"13:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":7.03,"date":"2036-04-19","moon_free_dark_hours":5.88,"moon_illumination":37,"moon_separation":78.6,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":6.97,"date":"2036-04-20","moon_free_dark_hours":6.42,"moon_illumination":28,"moon_separation":67.8,"score":null,"score_astronomy":0,"score_weather":null,"transit_alt":79.2,"transit_local":"13:00","verdict":"unknown","weather_source":"none","weekday":"Sun"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2036-03-22","target":{"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}}