{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":4.67,"best_label":"good","best_window":"18:35\u201323:15","dark_hours":11.25,"date":"2040-11-26","moon_free_dark_hours":5.23,"moon_illumination":50,"moon_separation":117.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.67,"best_label":"good","best_window":"18:35\u201323:15","dark_hours":11.27,"date":"2040-11-27","moon_free_dark_hours":6.27,"moon_illumination":40,"moon_separation":117.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:55","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.58,"best_label":"good","best_window":"18:35\u201323:10","dark_hours":11.29,"date":"2040-11-28","moon_free_dark_hours":7.33,"moon_illumination":31,"moon_separation":116.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.5,"best_label":"good","best_window":"18:35\u201323:05","dark_hours":11.31,"date":"2040-11-29","moon_free_dark_hours":8.4,"moon_illumination":22,"moon_separation":113.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.42,"best_label":"good","best_window":"18:35\u201323:00","dark_hours":11.32,"date":"2040-11-30","moon_free_dark_hours":9.52,"moon_illumination":14,"moon_separation":109.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:40","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.33,"best_label":"good","best_window":"18:35\u201322:55","dark_hours":11.34,"date":"2040-12-01","moon_free_dark_hours":10.7,"moon_illumination":7,"moon_separation":104.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.33,"best_label":"good","best_window":"18:35\u201322:55","dark_hours":11.36,"date":"2040-12-02","moon_free_dark_hours":11.33,"moon_illumination":2,"moon_separation":98.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:35","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.25,"best_label":"good","best_window":"18:35\u201322:50","dark_hours":11.37,"date":"2040-12-03","moon_free_dark_hours":11.35,"moon_illumination":0,"moon_separation":92.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.17,"best_label":"good","best_window":"18:35\u201322:45","dark_hours":11.39,"date":"2040-12-04","moon_free_dark_hours":11.37,"moon_illumination":1,"moon_separation":85.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.08,"best_label":"good","best_window":"18:35\u201322:40","dark_hours":11.4,"date":"2040-12-05","moon_free_dark_hours":11.38,"moon_illumination":4,"moon_separation":79.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.08,"best_label":"good","best_window":"18:35\u201322:40","dark_hours":11.42,"date":"2040-12-06","moon_free_dark_hours":11.18,"moon_illumination":10,"moon_separation":73.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"16:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.0,"best_label":"good","best_window":"18:35\u201322:35","dark_hours":11.43,"date":"2040-12-07","moon_free_dark_hours":9.93,"moon_illumination":18,"moon_separation":68.1,"score":null,"score_astronomy":95,"score_weather":null,"transit_alt":87.2,"transit_local":"16:15","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.92,"best_label":"good","best_window":"18:35\u201322:30","dark_hours":11.44,"date":"2040-12-08","moon_free_dark_hours":8.65,"moon_illumination":27,"moon_separation":64.6,"score":null,"score_astronomy":86,"score_weather":null,"transit_alt":87.2,"transit_local":"16:10","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.67,"best_label":"good","best_window":"18:35\u201322:15","dark_hours":11.45,"date":"2040-12-09","moon_free_dark_hours":7.38,"moon_illumination":38,"moon_separation":62.8,"score":null,"score_astronomy":73,"score_weather":null,"transit_alt":87.2,"transit_local":"16:05","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":3.42,"best_label":"good","best_window":"18:35\u201322:00","dark_hours":11.46,"date":"2040-12-10","moon_free_dark_hours":6.17,"moon_illumination":49,"moon_separation":62.7,"score":null,"score_astronomy":61,"score_weather":null,"transit_alt":87.2,"transit_local":"16:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.0,"best_label":"good","best_window":"18:35\u201321:35","dark_hours":11.47,"date":"2040-12-11","moon_free_dark_hours":4.98,"moon_illumination":60,"moon_separation":64.4,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.2,"transit_local":"16:00","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.58,"best_label":"good","best_window":"18:35\u201320:10","dark_hours":11.48,"date":"2040-12-12","moon_free_dark_hours":3.85,"moon_illumination":71,"moon_separation":67.5,"score":null,"score_astronomy":44,"score_weather":null,"transit_alt":87.2,"transit_local":"15:55","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.92,"best_label":"good","best_window":"18:35\u201319:30","dark_hours":11.48,"date":"2040-12-13","moon_free_dark_hours":2.73,"moon_illumination":80,"moon_separation":71.7,"score":null,"score_astronomy":39,"score_weather":null,"transit_alt":87.2,"transit_local":"15:50","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.75,"best_label":"good","best_window":"18:35\u201319:20","dark_hours":11.49,"date":"2040-12-14","moon_free_dark_hours":1.6,"moon_illumination":88,"moon_separation":76.8,"score":null,"score_astronomy":38,"score_weather":null,"transit_alt":87.2,"transit_local":"15:45","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.0,"best_label":"good","best_window":"18:35\u201319:35","dark_hours":11.49,"date":"2040-12-15","moon_free_dark_hours":0.5,"moon_illumination":94,"moon_separation":82.3,"score":null,"score_astronomy":39,"score_weather":null,"transit_alt":87.2,"transit_local":"15:40","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.33,"best_label":"good","best_window":"18:35\u201319:55","dark_hours":11.5,"date":"2040-12-16","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":88.0,"score":null,"score_astronomy":42,"score_weather":null,"transit_alt":87.2,"transit_local":"15:40","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.92,"best_label":"good","best_window":"18:35\u201320:30","dark_hours":11.5,"date":"2040-12-17","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":93.8,"score":null,"score_astronomy":47,"score_weather":null,"transit_alt":87.2,"transit_local":"15:35","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.5,"best_label":"good","best_window":"18:35\u201321:05","dark_hours":11.51,"date":"2040-12-18","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":99.3,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":87.2,"transit_local":"15:30","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.75,"best_label":"good","best_window":"18:35\u201321:20","dark_hours":11.51,"date":"2040-12-19","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":104.4,"score":null,"score_astronomy":57,"score_weather":null,"transit_alt":87.2,"transit_local":"15:25","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.75,"best_label":"good","best_window":"18:35\u201321:20","dark_hours":11.51,"date":"2040-12-20","moon_free_dark_hours":0.0,"moon_illumination":94,"moon_separation":108.9,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":87.2,"transit_local":"15:20","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.83,"best_label":"good","best_window":"18:35\u201321:25","dark_hours":11.51,"date":"2040-12-21","moon_free_dark_hours":0.93,"moon_illumination":89,"moon_separation":112.6,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.2,"transit_local":"15:20","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.83,"best_label":"good","best_window":"18:35\u201321:25","dark_hours":11.51,"date":"2040-12-22","moon_free_dark_hours":1.95,"moon_illumination":83,"moon_separation":115.4,"score":null,"score_astronomy":73,"score_weather":null,"transit_alt":87.2,"transit_local":"15:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.83,"best_label":"good","best_window":"18:40\u201321:30","dark_hours":11.5,"date":"2040-12-23","moon_free_dark_hours":2.97,"moon_illumination":75,"moon_separation":117.1,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.2,"transit_local":"15:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.75,"best_label":"good","best_window":"18:40\u201321:25","dark_hours":11.5,"date":"2040-12-24","moon_free_dark_hours":3.98,"moon_illumination":67,"moon_separation":117.5,"score":null,"score_astronomy":70,"score_weather":null,"transit_alt":87.2,"transit_local":"15:05","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.75,"best_label":"good","best_window":"18:40\u201321:25","dark_hours":11.5,"date":"2040-12-25","moon_free_dark_hours":5.0,"moon_illumination":58,"moon_separation":116.7,"score":null,"score_astronomy":69,"score_weather":null,"transit_alt":87.2,"transit_local":"15:05","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":"2040-11-26","target":{"common_name":"North America Nebula","dec":44.33,"name":"NGC 7000","ra":314.69583333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC%207000","source":"sesame","type":"Cl*","type_text":"star cluster"}}