{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":0.08,"best_label":"marginal","best_window":"04:25\u201304:30","dark_hours":4.6,"date":"2038-06-07","moon_free_dark_hours":3.07,"moon_illumination":23,"moon_separation":100.2,"score":null,"score_astronomy":2,"score_weather":null,"transit_alt":79.2,"transit_local":"09:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.17,"best_label":"marginal","best_window":"04:20\u201304:30","dark_hours":4.58,"date":"2038-06-08","moon_free_dark_hours":2.42,"moon_illumination":33,"moon_separation":112.3,"score":null,"score_astronomy":2,"score_weather":null,"transit_alt":79.2,"transit_local":"09:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.25,"best_label":"marginal","best_window":"04:15\u201304:30","dark_hours":4.55,"date":"2038-06-09","moon_free_dark_hours":1.87,"moon_illumination":44,"moon_separation":124.4,"score":null,"score_astronomy":3,"score_weather":null,"transit_alt":79.2,"transit_local":"09:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.33,"best_label":"marginal","best_window":"04:10\u201304:30","dark_hours":4.53,"date":"2038-06-10","moon_free_dark_hours":1.33,"moon_illumination":55,"moon_separation":136.1,"score":null,"score_astronomy":3,"score_weather":null,"transit_alt":79.2,"transit_local":"09:40","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.42,"best_label":"marginal","best_window":"04:05\u201304:30","dark_hours":4.51,"date":"2038-06-11","moon_free_dark_hours":0.85,"moon_illumination":66,"moon_separation":146.7,"score":null,"score_astronomy":3,"score_weather":null,"transit_alt":79.2,"transit_local":"09:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.42,"best_label":"marginal","best_window":"04:05\u201304:30","dark_hours":4.49,"date":"2038-06-12","moon_free_dark_hours":0.33,"moon_illumination":77,"moon_separation":154.2,"score":null,"score_astronomy":4,"score_weather":null,"transit_alt":79.2,"transit_local":"09:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.5,"best_label":"marginal","best_window":"04:00\u201304:30","dark_hours":4.48,"date":"2038-06-13","moon_free_dark_hours":0.0,"moon_illumination":86,"moon_separation":155.2,"score":null,"score_astronomy":4,"score_weather":null,"transit_alt":79.2,"transit_local":"09:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.5,"best_label":"marginal","best_window":"04:00\u201304:30","dark_hours":4.46,"date":"2038-06-14","moon_free_dark_hours":0.0,"moon_illumination":93,"moon_separation":148.9,"score":null,"score_astronomy":5,"score_weather":null,"transit_alt":79.2,"transit_local":"09:20","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.5,"best_label":"marginal","best_window":"04:00\u201304:30","dark_hours":4.45,"date":"2038-06-15","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":138.5,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":79.2,"transit_local":"09:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.58,"best_label":"marginal","best_window":"03:55\u201304:30","dark_hours":4.44,"date":"2038-06-16","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":126.4,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":79.2,"transit_local":"09:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.58,"best_label":"marginal","best_window":"03:55\u201304:30","dark_hours":4.43,"date":"2038-06-17","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":113.8,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":79.2,"transit_local":"09:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.5,"best_label":"marginal","best_window":"03:10\u201303:40","dark_hours":4.43,"date":"2038-06-18","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":101.2,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":79.2,"transit_local":"09:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.58,"best_label":"marginal","best_window":"03:05\u201303:40","dark_hours":4.42,"date":"2038-06-19","moon_free_dark_hours":0.23,"moon_illumination":90,"moon_separation":88.8,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":79.2,"transit_local":"09:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.58,"best_label":"marginal","best_window":"03:05\u201303:40","dark_hours":4.42,"date":"2038-06-20","moon_free_dark_hours":0.9,"moon_illumination":83,"moon_separation":76.8,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":79.2,"transit_local":"09:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.67,"best_label":"marginal","best_window":"03:00\u201303:40","dark_hours":4.42,"date":"2038-06-21","moon_free_dark_hours":1.47,"moon_illumination":74,"moon_separation":65.3,"score":null,"score_astronomy":7,"score_weather":null,"transit_alt":79.2,"transit_local":"08:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.75,"best_label":"marginal","best_window":"02:55\u201303:40","dark_hours":4.43,"date":"2038-06-22","moon_free_dark_hours":1.95,"moon_illumination":65,"moon_separation":54.3,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":79.2,"transit_local":"08:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.83,"best_label":"marginal","best_window":"02:50\u201303:40","dark_hours":4.43,"date":"2038-06-23","moon_free_dark_hours":2.38,"moon_illumination":56,"moon_separation":44.1,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":79.2,"transit_local":"08:45","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.75,"best_label":"marginal","best_window":"02:45\u201304:30","dark_hours":4.44,"date":"2038-06-24","moon_free_dark_hours":2.78,"moon_illumination":46,"moon_separation":35.0,"score":null,"score_astronomy":11,"score_weather":null,"transit_alt":79.2,"transit_local":"08:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.17,"best_label":"good","best_window":"03:30\u201303:40","dark_hours":4.45,"date":"2038-06-25","moon_free_dark_hours":3.17,"moon_illumination":37,"moon_separation":27.9,"score":null,"score_astronomy":13,"score_weather":null,"transit_alt":79.2,"transit_local":"08:40","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.33,"best_label":"good","best_window":"03:20\u201303:40","dark_hours":4.46,"date":"2038-06-26","moon_free_dark_hours":3.58,"moon_illumination":28,"moon_separation":24.3,"score":null,"score_astronomy":17,"score_weather":null,"transit_alt":79.2,"transit_local":"08:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.58,"best_label":"good","best_window":"03:05\u201303:40","dark_hours":4.47,"date":"2038-06-27","moon_free_dark_hours":4.02,"moon_illumination":20,"moon_separation":25.9,"score":null,"score_astronomy":20,"score_weather":null,"transit_alt":79.2,"transit_local":"08:30","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.67,"best_label":"good","best_window":"03:00\u201303:40","dark_hours":4.48,"date":"2038-06-28","moon_free_dark_hours":4.47,"moon_illumination":13,"moon_separation":31.9,"score":null,"score_astronomy":24,"score_weather":null,"transit_alt":79.2,"transit_local":"08:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.75,"best_label":"good","best_window":"02:55\u201303:40","dark_hours":4.5,"date":"2038-06-29","moon_free_dark_hours":4.48,"moon_illumination":7,"moon_separation":40.6,"score":null,"score_astronomy":26,"score_weather":null,"transit_alt":79.2,"transit_local":"08:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.92,"best_label":"good","best_window":"02:50\u201303:45","dark_hours":4.52,"date":"2038-06-30","moon_free_dark_hours":4.5,"moon_illumination":3,"moon_separation":50.7,"score":null,"score_astronomy":28,"score_weather":null,"transit_alt":79.2,"transit_local":"08:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.92,"best_label":"good","best_window":"02:50\u201303:45","dark_hours":4.54,"date":"2038-07-01","moon_free_dark_hours":4.53,"moon_illumination":0,"moon_separation":61.7,"score":null,"score_astronomy":29,"score_weather":null,"transit_alt":79.2,"transit_local":"08:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.0,"best_label":"good","best_window":"02:45\u201303:45","dark_hours":4.56,"date":"2038-07-02","moon_free_dark_hours":4.55,"moon_illumination":0,"moon_separation":73.2,"score":null,"score_astronomy":31,"score_weather":null,"transit_alt":79.2,"transit_local":"08:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.08,"best_label":"good","best_window":"02:40\u201303:45","dark_hours":4.59,"date":"2038-07-03","moon_free_dark_hours":4.58,"moon_illumination":2,"moon_separation":85.1,"score":null,"score_astronomy":33,"score_weather":null,"transit_alt":79.2,"transit_local":"08:10","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.17,"best_label":"good","best_window":"02:35\u201303:45","dark_hours":4.61,"date":"2038-07-04","moon_free_dark_hours":4.6,"moon_illumination":6,"moon_separation":97.2,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":79.2,"transit_local":"08:05","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.25,"best_label":"good","best_window":"02:35\u201303:50","dark_hours":4.64,"date":"2038-07-05","moon_free_dark_hours":4.53,"moon_illumination":13,"moon_separation":109.5,"score":null,"score_astronomy":37,"score_weather":null,"transit_alt":79.2,"transit_local":"08:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.33,"best_label":"good","best_window":"02:30\u201303:50","dark_hours":4.67,"date":"2038-07-06","moon_free_dark_hours":3.97,"moon_illumination":21,"moon_separation":121.7,"score":null,"score_astronomy":38,"score_weather":null,"transit_alt":79.2,"transit_local":"07:55","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":"2038-06-07","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}}