{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":0.67,"best_label":"good","best_window":"03:05\u201303:45","dark_hours":4.53,"date":"2043-07-01","moon_free_dark_hours":2.75,"moon_illumination":30,"moon_separation":16.8,"score":null,"score_astronomy":21,"score_weather":null,"transit_alt":79.2,"transit_local":"08:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.83,"best_label":"good","best_window":"02:55\u201303:45","dark_hours":4.56,"date":"2043-07-02","moon_free_dark_hours":3.28,"moon_illumination":20,"moon_separation":21.6,"score":null,"score_astronomy":25,"score_weather":null,"transit_alt":79.2,"transit_local":"08:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.08,"best_label":"good","best_window":"02:40\u201303:45","dark_hours":4.58,"date":"2043-07-03","moon_free_dark_hours":3.93,"moon_illumination":11,"moon_separation":32.7,"score":null,"score_astronomy":29,"score_weather":null,"transit_alt":79.2,"transit_local":"08:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.17,"best_label":"good","best_window":"02:35\u201303:45","dark_hours":4.61,"date":"2043-07-04","moon_free_dark_hours":4.58,"moon_illumination":5,"moon_separation":45.8,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":79.2,"transit_local":"08:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.17,"best_label":"good","best_window":"02:35\u201303:45","dark_hours":4.63,"date":"2043-07-05","moon_free_dark_hours":4.62,"moon_illumination":1,"moon_separation":59.5,"score":null,"score_astronomy":35,"score_weather":null,"transit_alt":79.2,"transit_local":"08:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.33,"best_label":"good","best_window":"02:30\u201303:50","dark_hours":4.66,"date":"2043-07-06","moon_free_dark_hours":4.63,"moon_illumination":0,"moon_separation":73.4,"score":null,"score_astronomy":38,"score_weather":null,"transit_alt":79.2,"transit_local":"07:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.42,"best_label":"good","best_window":"02:25\u201303:50","dark_hours":4.69,"date":"2043-07-07","moon_free_dark_hours":4.68,"moon_illumination":2,"moon_separation":87.2,"score":null,"score_astronomy":40,"score_weather":null,"transit_alt":79.2,"transit_local":"07:55","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.5,"best_label":"good","best_window":"02:20\u201303:50","dark_hours":4.73,"date":"2043-07-08","moon_free_dark_hours":4.72,"moon_illumination":6,"moon_separation":100.6,"score":null,"score_astronomy":41,"score_weather":null,"transit_alt":79.2,"transit_local":"07:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.5,"best_label":"good","best_window":"02:20\u201303:50","dark_hours":4.76,"date":"2043-07-09","moon_free_dark_hours":4.75,"moon_illumination":13,"moon_separation":113.6,"score":null,"score_astronomy":43,"score_weather":null,"transit_alt":79.2,"transit_local":"07:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.67,"best_label":"good","best_window":"02:15\u201303:55","dark_hours":4.8,"date":"2043-07-10","moon_free_dark_hours":4.37,"moon_illumination":21,"moon_separation":126.0,"score":null,"score_astronomy":46,"score_weather":null,"transit_alt":79.2,"transit_local":"07:40","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.75,"best_label":"good","best_window":"02:10\u201303:55","dark_hours":4.83,"date":"2043-07-11","moon_free_dark_hours":4.05,"moon_illumination":30,"moon_separation":137.8,"score":null,"score_astronomy":48,"score_weather":null,"transit_alt":79.2,"transit_local":"07:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.83,"best_label":"good","best_window":"02:05\u201303:55","dark_hours":4.87,"date":"2043-07-12","moon_free_dark_hours":3.77,"moon_illumination":39,"moon_separation":148.7,"score":null,"score_astronomy":50,"score_weather":null,"transit_alt":79.2,"transit_local":"07:35","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.92,"best_label":"good","best_window":"02:00\u201303:55","dark_hours":4.91,"date":"2043-07-13","moon_free_dark_hours":3.47,"moon_illumination":49,"moon_separation":157.9,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":79.2,"transit_local":"07:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.0,"best_label":"good","best_window":"02:00\u201304:00","dark_hours":4.95,"date":"2043-07-14","moon_free_dark_hours":3.15,"moon_illumination":58,"moon_separation":163.1,"score":null,"score_astronomy":54,"score_weather":null,"transit_alt":79.2,"transit_local":"07:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.08,"best_label":"good","best_window":"01:55\u201304:00","dark_hours":4.99,"date":"2043-07-15","moon_free_dark_hours":2.8,"moon_illumination":67,"moon_separation":161.0,"score":null,"score_astronomy":57,"score_weather":null,"transit_alt":79.2,"transit_local":"07:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.17,"best_label":"good","best_window":"01:50\u201304:00","dark_hours":5.04,"date":"2043-07-16","moon_free_dark_hours":2.37,"moon_illumination":76,"moon_separation":153.4,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":79.2,"transit_local":"07:20","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.08,"best_label":"good","best_window":"01:55\u201304:00","dark_hours":5.08,"date":"2043-07-17","moon_free_dark_hours":1.83,"moon_illumination":84,"moon_separation":143.5,"score":null,"score_astronomy":59,"score_weather":null,"transit_alt":79.2,"transit_local":"07:15","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.25,"best_label":"good","best_window":"01:50\u201304:05","dark_hours":5.13,"date":"2043-07-18","moon_free_dark_hours":1.18,"moon_illumination":90,"moon_separation":132.7,"score":null,"score_astronomy":61,"score_weather":null,"transit_alt":79.2,"transit_local":"07:10","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.33,"best_label":"good","best_window":"01:45\u201304:05","dark_hours":5.17,"date":"2043-07-19","moon_free_dark_hours":0.37,"moon_illumination":95,"moon_separation":121.4,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":79.2,"transit_local":"07:05","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.25,"best_label":"good","best_window":"01:50\u201304:05","dark_hours":5.22,"date":"2043-07-20","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":109.7,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":79.2,"transit_local":"07:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.25,"best_label":"good","best_window":"01:55\u201304:10","dark_hours":5.27,"date":"2043-07-21","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":97.7,"score":null,"score_astronomy":46,"score_weather":null,"transit_alt":79.2,"transit_local":"07:00","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.67,"best_label":"good","best_window":"02:30\u201304:10","dark_hours":5.32,"date":"2043-07-22","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":85.5,"score":null,"score_astronomy":38,"score_weather":null,"transit_alt":79.2,"transit_local":"06:55","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.5,"best_label":"good","best_window":"03:40\u201304:10","dark_hours":5.37,"date":"2043-07-23","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":73.0,"score":null,"score_astronomy":31,"score_weather":null,"transit_alt":79.2,"transit_local":"06:50","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":3.25,"best_label":"marginal","best_window":"01:00\u201304:15","dark_hours":5.42,"date":"2043-07-24","moon_free_dark_hours":0.0,"moon_illumination":92,"moon_separation":60.5,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":79.2,"transit_local":"06:45","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.25,"best_label":"marginal","best_window":"01:00\u201304:15","dark_hours":5.47,"date":"2043-07-25","moon_free_dark_hours":0.1,"moon_illumination":85,"moon_separation":47.9,"score":null,"score_astronomy":23,"score_weather":null,"transit_alt":79.2,"transit_local":"06:40","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.33,"best_label":"marginal","best_window":"00:55\u201304:15","dark_hours":5.52,"date":"2043-07-26","moon_free_dark_hours":0.47,"moon_illumination":76,"moon_separation":35.6,"score":null,"score_astronomy":23,"score_weather":null,"transit_alt":79.2,"transit_local":"06:40","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":3.5,"best_label":"marginal","best_window":"00:45\u201304:15","dark_hours":5.57,"date":"2043-07-27","moon_free_dark_hours":0.87,"moon_illumination":66,"moon_separation":24.4,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":79.2,"transit_local":"06:35","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.5,"best_label":"good","best_window":"02:50\u201304:20","dark_hours":5.62,"date":"2043-07-28","moon_free_dark_hours":1.28,"moon_illumination":55,"moon_separation":17.1,"score":null,"score_astronomy":37,"score_weather":null,"transit_alt":79.2,"transit_local":"06:30","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.0,"best_label":"good","best_window":"01:20\u201304:20","dark_hours":5.68,"date":"2043-07-29","moon_free_dark_hours":1.8,"moon_illumination":43,"moon_separation":19.3,"score":null,"score_astronomy":49,"score_weather":null,"transit_alt":79.2,"transit_local":"06:25","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.17,"best_label":"good","best_window":"01:10\u201304:20","dark_hours":5.73,"date":"2043-07-30","moon_free_dark_hours":2.42,"moon_illumination":32,"moon_separation":29.0,"score":null,"score_astronomy":63,"score_weather":null,"transit_alt":79.2,"transit_local":"06:25","verdict":"unknown","weather_source":"none","weekday":"Thu"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2043-07-01","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}}