{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":2.75,"best_label":"good","best_window":"02:50\u201305:35","dark_hours":10.86,"date":"2035-11-12","moon_free_dark_hours":1.35,"moon_illumination":91,"moon_separation":45.2,"score":null,"score_astronomy":89,"score_weather":null,"transit_alt":72.5,"transit_local":"00:40","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.25,"best_label":"good","best_window":"05:20\u201305:35","dark_hours":10.89,"date":"2035-11-13","moon_free_dark_hours":0.22,"moon_illumination":96,"moon_separation":31.8,"score":null,"score_astronomy":80,"score_weather":null,"transit_alt":72.5,"transit_local":"00:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.92,"best_label":"marginal","best_window":"01:40\u201305:35","dark_hours":10.92,"date":"2035-11-14","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":18.6,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":72.5,"transit_local":"00:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.17,"best_label":"marginal","best_window":"19:35\u201321:45","dark_hours":10.95,"date":"2035-11-15","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":9.3,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":72.5,"transit_local":"00:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.08,"best_label":"marginal","best_window":"19:15\u201323:20","dark_hours":10.98,"date":"2035-11-16","moon_free_dark_hours":0.0,"moon_illumination":97,"moon_separation":16.0,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":72.5,"transit_local":"00:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":6.75,"best_label":"marginal","best_window":"18:50\u201301:35","dark_hours":11.01,"date":"2035-11-17","moon_free_dark_hours":0.53,"moon_illumination":92,"moon_separation":29.4,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":72.5,"transit_local":"00:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.92,"best_label":"good","best_window":"19:15\u201320:10","dark_hours":11.04,"date":"2035-11-18","moon_free_dark_hours":1.53,"moon_illumination":84,"moon_separation":43.6,"score":null,"score_astronomy":83,"score_weather":null,"transit_alt":72.5,"transit_local":"00:20","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":6.92,"best_label":"good","best_window":"19:10\u201302:05","dark_hours":11.06,"date":"2035-11-19","moon_free_dark_hours":2.62,"moon_illumination":75,"moon_separation":57.9,"score":null,"score_astronomy":92,"score_weather":null,"transit_alt":72.5,"transit_local":"00:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":9.08,"best_label":"good","best_window":"19:05\u201304:10","dark_hours":11.09,"date":"2035-11-20","moon_free_dark_hours":3.73,"moon_illumination":64,"moon_separation":72.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"00:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":10.0,"best_label":"good","best_window":"19:00\u201305:00","dark_hours":11.11,"date":"2035-11-21","moon_free_dark_hours":4.88,"moon_illumination":53,"moon_separation":85.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"00:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":10.17,"best_label":"good","best_window":"18:55\u201305:05","dark_hours":11.14,"date":"2035-11-22","moon_free_dark_hours":6.0,"moon_illumination":42,"moon_separation":99.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"00:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":10.17,"best_label":"good","best_window":"18:55\u201305:05","dark_hours":11.16,"date":"2035-11-23","moon_free_dark_hours":7.1,"moon_illumination":32,"moon_separation":112.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"00:00","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":10.25,"best_label":"good","best_window":"18:50\u201305:05","dark_hours":11.19,"date":"2035-11-24","moon_free_dark_hours":8.17,"moon_illumination":22,"moon_separation":125.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":10.25,"best_label":"good","best_window":"18:45\u201305:00","dark_hours":11.21,"date":"2035-11-25","moon_free_dark_hours":9.22,"moon_illumination":15,"moon_separation":138.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":10.25,"best_label":"good","best_window":"18:40\u201304:55","dark_hours":11.23,"date":"2035-11-26","moon_free_dark_hours":10.25,"moon_illumination":8,"moon_separation":150.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":10.33,"best_label":"good","best_window":"18:35\u201304:55","dark_hours":11.25,"date":"2035-11-27","moon_free_dark_hours":11.23,"moon_illumination":4,"moon_separation":161.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":10.25,"best_label":"good","best_window":"18:35\u201304:50","dark_hours":11.27,"date":"2035-11-28","moon_free_dark_hours":11.25,"moon_illumination":1,"moon_separation":170.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":10.17,"best_label":"good","best_window":"18:35\u201304:45","dark_hours":11.29,"date":"2035-11-29","moon_free_dark_hours":11.28,"moon_illumination":0,"moon_separation":167.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":10.08,"best_label":"good","best_window":"18:35\u201304:40","dark_hours":11.31,"date":"2035-11-30","moon_free_dark_hours":11.3,"moon_illumination":1,"moon_separation":157.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":10.08,"best_label":"good","best_window":"18:35\u201304:40","dark_hours":11.33,"date":"2035-12-01","moon_free_dark_hours":11.32,"moon_illumination":4,"moon_separation":146.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":10.0,"best_label":"good","best_window":"18:35\u201304:35","dark_hours":11.34,"date":"2035-12-02","moon_free_dark_hours":10.68,"moon_illumination":9,"moon_separation":134.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":9.92,"best_label":"good","best_window":"18:35\u201304:30","dark_hours":11.36,"date":"2035-12-03","moon_free_dark_hours":9.87,"moon_illumination":15,"moon_separation":123.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:20","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":9.83,"best_label":"good","best_window":"18:35\u201304:25","dark_hours":11.38,"date":"2035-12-04","moon_free_dark_hours":8.98,"moon_illumination":22,"moon_separation":111.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:15","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":9.75,"best_label":"good","best_window":"18:35\u201304:20","dark_hours":11.39,"date":"2035-12-05","moon_free_dark_hours":8.07,"moon_illumination":30,"moon_separation":99.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":9.75,"best_label":"good","best_window":"18:35\u201304:20","dark_hours":11.4,"date":"2035-12-06","moon_free_dark_hours":7.12,"moon_illumination":39,"moon_separation":87.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":9.67,"best_label":"good","best_window":"18:35\u201304:15","dark_hours":11.42,"date":"2035-12-07","moon_free_dark_hours":6.15,"moon_illumination":49,"moon_separation":75.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":9.42,"best_label":"good","best_window":"18:45\u201304:10","dark_hours":11.43,"date":"2035-12-08","moon_free_dark_hours":5.13,"moon_illumination":59,"moon_separation":63.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":72.5,"transit_local":"23:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":7.42,"best_label":"good","best_window":"20:40\u201304:05","dark_hours":11.44,"date":"2035-12-09","moon_free_dark_hours":4.1,"moon_illumination":69,"moon_separation":50.6,"score":null,"score_astronomy":93,"score_weather":null,"transit_alt":72.5,"transit_local":"22:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.67,"best_label":"good","best_window":"01:15\u201302:55","dark_hours":11.45,"date":"2035-12-10","moon_free_dark_hours":3.03,"moon_illumination":78,"moon_separation":37.5,"score":null,"score_astronomy":84,"score_weather":null,"transit_alt":72.5,"transit_local":"22:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":9.83,"best_label":"marginal","best_window":"18:35\u201304:25","dark_hours":11.46,"date":"2035-12-11","moon_free_dark_hours":1.92,"moon_illumination":87,"moon_separation":24.4,"score":null,"score_astronomy":54,"score_weather":null,"transit_alt":72.5,"transit_local":"22:50","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":"2035-11-12","target":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"}}