{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":1.25,"best_label":"good","best_window":"03:00\u201304:15","dark_hours":10.77,"date":"2027-11-09","moon_free_dark_hours":2.52,"moon_illumination":82,"moon_separation":38.9,"score":null,"score_astronomy":85,"score_weather":null,"transit_alt":79.1,"transit_local":"22:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.08,"best_label":"good","best_window":"04:05\u201304:10","dark_hours":10.8,"date":"2027-11-10","moon_free_dark_hours":1.48,"moon_illumination":89,"moon_separation":27.9,"score":null,"score_astronomy":61,"score_weather":null,"transit_alt":79.1,"transit_local":"22:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.33,"best_label":"marginal","best_window":"22:55\u201304:15","dark_hours":10.83,"date":"2027-11-11","moon_free_dark_hours":0.38,"moon_illumination":94,"moon_separation":18.2,"score":null,"score_astronomy":36,"score_weather":null,"transit_alt":79.1,"transit_local":"22:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.0,"best_label":"marginal","best_window":"18:40\u201320:40","dark_hours":10.86,"date":"2027-11-12","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":14.5,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":79.1,"transit_local":"22:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.25,"best_label":"marginal","best_window":"18:40\u201320:55","dark_hours":10.89,"date":"2027-11-13","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":20.7,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":79.1,"transit_local":"22:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.33,"best_label":"marginal","best_window":"18:40\u201322:00","dark_hours":10.92,"date":"2027-11-14","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":31.9,"score":null,"score_astronomy":33,"score_weather":null,"transit_alt":79.1,"transit_local":"22:20","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":7.83,"best_label":"marginal","best_window":"18:40\u201302:30","dark_hours":10.95,"date":"2027-11-15","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":44.7,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":79.1,"transit_local":"22:20","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.0,"best_label":"good","best_window":"18:40\u201321:40","dark_hours":10.98,"date":"2027-11-16","moon_free_dark_hours":0.17,"moon_illumination":90,"moon_separation":58.0,"score":null,"score_astronomy":91,"score_weather":null,"transit_alt":79.1,"transit_local":"22:15","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":6.42,"best_label":"good","best_window":"18:40\u201301:05","dark_hours":11.01,"date":"2027-11-17","moon_free_dark_hours":1.33,"moon_illumination":83,"moon_separation":71.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"22:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":8.17,"best_label":"good","best_window":"18:40\u201302:50","dark_hours":11.04,"date":"2027-11-18","moon_free_dark_hours":2.58,"moon_illumination":73,"moon_separation":85.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"22:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":8.67,"best_label":"good","best_window":"18:35\u201303:15","dark_hours":11.06,"date":"2027-11-19","moon_free_dark_hours":3.87,"moon_illumination":63,"moon_separation":99.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"22:00","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":8.75,"best_label":"good","best_window":"18:35\u201303:20","dark_hours":11.09,"date":"2027-11-20","moon_free_dark_hours":5.1,"moon_illumination":51,"moon_separation":112.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"22:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":8.75,"best_label":"good","best_window":"18:35\u201303:20","dark_hours":11.11,"date":"2027-11-21","moon_free_dark_hours":6.33,"moon_illumination":40,"moon_separation":126.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":8.75,"best_label":"good","best_window":"18:35\u201303:20","dark_hours":11.14,"date":"2027-11-22","moon_free_dark_hours":7.53,"moon_illumination":29,"moon_separation":139.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":8.75,"best_label":"good","best_window":"18:35\u201303:20","dark_hours":11.16,"date":"2027-11-23","moon_free_dark_hours":8.73,"moon_illumination":20,"moon_separation":151.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":8.67,"best_label":"good","best_window":"18:35\u201303:15","dark_hours":11.19,"date":"2027-11-24","moon_free_dark_hours":9.93,"moon_illumination":12,"moon_separation":162.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":8.58,"best_label":"good","best_window":"18:35\u201303:10","dark_hours":11.21,"date":"2027-11-25","moon_free_dark_hours":11.13,"moon_illumination":6,"moon_separation":165.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:40","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":8.5,"best_label":"good","best_window":"18:35\u201303:05","dark_hours":11.23,"date":"2027-11-26","moon_free_dark_hours":11.22,"moon_illumination":2,"moon_separation":158.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":8.5,"best_label":"good","best_window":"18:35\u201303:05","dark_hours":11.25,"date":"2027-11-27","moon_free_dark_hours":11.23,"moon_illumination":0,"moon_separation":147.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":8.42,"best_label":"good","best_window":"18:35\u201303:00","dark_hours":11.27,"date":"2027-11-28","moon_free_dark_hours":11.25,"moon_illumination":1,"moon_separation":135.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":8.33,"best_label":"good","best_window":"18:35\u201302:55","dark_hours":11.29,"date":"2027-11-29","moon_free_dark_hours":11.28,"moon_illumination":3,"moon_separation":123.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":8.25,"best_label":"good","best_window":"18:35\u201302:50","dark_hours":11.31,"date":"2027-11-30","moon_free_dark_hours":11.28,"moon_illumination":8,"moon_separation":111.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":8.17,"best_label":"good","best_window":"18:35\u201302:45","dark_hours":11.33,"date":"2027-12-01","moon_free_dark_hours":10.27,"moon_illumination":14,"moon_separation":100.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":8.17,"best_label":"good","best_window":"18:35\u201302:45","dark_hours":11.34,"date":"2027-12-02","moon_free_dark_hours":9.22,"moon_illumination":21,"moon_separation":88.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":8.08,"best_label":"good","best_window":"18:35\u201302:40","dark_hours":11.36,"date":"2027-12-03","moon_free_dark_hours":8.18,"moon_illumination":29,"moon_separation":77.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":8.0,"best_label":"good","best_window":"18:35\u201302:35","dark_hours":11.38,"date":"2027-12-04","moon_free_dark_hours":7.18,"moon_illumination":38,"moon_separation":65.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":79.1,"transit_local":"21:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":7.92,"best_label":"good","best_window":"18:35\u201302:30","dark_hours":11.39,"date":"2027-12-05","moon_free_dark_hours":6.18,"moon_illumination":47,"moon_separation":54.2,"score":null,"score_astronomy":97,"score_weather":null,"transit_alt":79.1,"transit_local":"21:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":7.83,"best_label":"good","best_window":"18:35\u201302:25","dark_hours":11.4,"date":"2027-12-06","moon_free_dark_hours":5.2,"moon_illumination":57,"moon_separation":42.9,"score":null,"score_astronomy":89,"score_weather":null,"transit_alt":79.1,"transit_local":"20:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.75,"best_label":"good","best_window":"22:40\u201302:25","dark_hours":11.42,"date":"2027-12-07","moon_free_dark_hours":4.18,"moon_illumination":66,"moon_separation":31.8,"score":null,"score_astronomy":81,"score_weather":null,"transit_alt":79.1,"transit_local":"20:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":8.17,"best_label":"marginal","best_window":"18:35\u201302:45","dark_hours":11.43,"date":"2027-12-08","moon_free_dark_hours":3.12,"moon_illumination":75,"moon_separation":21.5,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":79.1,"transit_local":"20:45","verdict":"unknown","weather_source":"none","weekday":"Wed"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2027-11-09","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}}
