{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":1.67,"best_label":"good","best_window":"18:50\u201320:30","dark_hours":11.36,"date":"2048-01-08","moon_free_dark_hours":6.37,"moon_illumination":48,"moon_separation":118.7,"score":null,"score_astronomy":43,"score_weather":null,"transit_alt":87.2,"transit_local":"14:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.58,"best_label":"good","best_window":"18:50\u201320:25","dark_hours":11.35,"date":"2048-01-09","moon_free_dark_hours":7.57,"moon_illumination":37,"moon_separation":112.1,"score":null,"score_astronomy":41,"score_weather":null,"transit_alt":87.2,"transit_local":"14:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.58,"best_label":"good","best_window":"18:50\u201320:25","dark_hours":11.33,"date":"2048-01-10","moon_free_dark_hours":8.8,"moon_illumination":26,"moon_separation":104.3,"score":null,"score_astronomy":39,"score_weather":null,"transit_alt":87.1,"transit_local":"14:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.5,"best_label":"good","best_window":"18:50\u201320:20","dark_hours":11.31,"date":"2048-01-11","moon_free_dark_hours":9.98,"moon_illumination":17,"moon_separation":95.8,"score":null,"score_astronomy":38,"score_weather":null,"transit_alt":87.2,"transit_local":"14:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.33,"best_label":"good","best_window":"18:55\u201320:15","dark_hours":11.29,"date":"2048-01-12","moon_free_dark_hours":11.07,"moon_illumination":9,"moon_separation":86.9,"score":null,"score_astronomy":36,"score_weather":null,"transit_alt":87.2,"transit_local":"13:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.25,"best_label":"good","best_window":"18:55\u201320:10","dark_hours":11.27,"date":"2048-01-13","moon_free_dark_hours":11.25,"moon_illumination":3,"moon_separation":78.2,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":87.2,"transit_local":"13:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.17,"best_label":"good","best_window":"18:55\u201320:05","dark_hours":11.25,"date":"2048-01-14","moon_free_dark_hours":11.23,"moon_illumination":0,"moon_separation":70.0,"score":null,"score_astronomy":33,"score_weather":null,"transit_alt":87.2,"transit_local":"13:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.17,"best_label":"good","best_window":"18:55\u201320:05","dark_hours":11.23,"date":"2048-01-15","moon_free_dark_hours":11.22,"moon_illumination":0,"moon_separation":62.9,"score":null,"score_astronomy":31,"score_weather":null,"transit_alt":87.2,"transit_local":"13:45","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.08,"best_label":"good","best_window":"18:55\u201320:00","dark_hours":11.21,"date":"2048-01-16","moon_free_dark_hours":11.18,"moon_illumination":3,"moon_separation":57.3,"score":null,"score_astronomy":30,"score_weather":null,"transit_alt":87.2,"transit_local":"13:40","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.92,"best_label":"good","best_window":"19:00\u201319:55","dark_hours":11.19,"date":"2048-01-17","moon_free_dark_hours":10.32,"moon_illumination":8,"moon_separation":53.9,"score":null,"score_astronomy":26,"score_weather":null,"transit_alt":87.2,"transit_local":"13:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.75,"best_label":"good","best_window":"19:00\u201319:45","dark_hours":11.16,"date":"2048-01-18","moon_free_dark_hours":9.18,"moon_illumination":14,"moon_separation":52.8,"score":null,"score_astronomy":23,"score_weather":null,"transit_alt":87.2,"transit_local":"13:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.58,"best_label":"good","best_window":"19:00\u201319:35","dark_hours":11.14,"date":"2048-01-19","moon_free_dark_hours":8.07,"moon_illumination":22,"moon_separation":53.9,"score":null,"score_astronomy":21,"score_weather":null,"transit_alt":87.1,"transit_local":"13:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.42,"best_label":"good","best_window":"19:00\u201319:25","dark_hours":11.12,"date":"2048-01-20","moon_free_dark_hours":7.02,"moon_illumination":31,"moon_separation":57.0,"score":null,"score_astronomy":17,"score_weather":null,"transit_alt":87.2,"transit_local":"13:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.25,"best_label":"good","best_window":"19:00\u201319:15","dark_hours":11.09,"date":"2048-01-21","moon_free_dark_hours":5.97,"moon_illumination":41,"moon_separation":61.5,"score":null,"score_astronomy":15,"score_weather":null,"transit_alt":87.2,"transit_local":"13:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.08,"best_label":"marginal","best_window":"19:05\u201320:10","dark_hours":11.06,"date":"2048-01-22","moon_free_dark_hours":4.95,"moon_illumination":50,"moon_separation":67.1,"score":null,"score_astronomy":12,"score_weather":null,"transit_alt":87.2,"transit_local":"13:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.0,"best_label":"marginal","best_window":"19:05\u201320:05","dark_hours":11.04,"date":"2048-01-23","moon_free_dark_hours":3.93,"moon_illumination":60,"moon_separation":73.5,"score":null,"score_astronomy":11,"score_weather":null,"transit_alt":87.2,"transit_local":"13:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.92,"best_label":"marginal","best_window":"19:05\u201320:00","dark_hours":11.01,"date":"2048-01-24","moon_free_dark_hours":2.95,"moon_illumination":69,"moon_separation":80.3,"score":null,"score_astronomy":10,"score_weather":null,"transit_alt":87.1,"transit_local":"13:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.83,"best_label":"marginal","best_window":"19:05\u201319:55","dark_hours":10.98,"date":"2048-01-25","moon_free_dark_hours":2.0,"moon_illumination":77,"moon_separation":87.4,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":87.2,"transit_local":"13:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.83,"best_label":"marginal","best_window":"19:05\u201319:55","dark_hours":10.95,"date":"2048-01-26","moon_free_dark_hours":1.13,"moon_illumination":84,"moon_separation":94.6,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":87.2,"transit_local":"13:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.67,"best_label":"marginal","best_window":"19:10\u201319:50","dark_hours":10.92,"date":"2048-01-27","moon_free_dark_hours":0.37,"moon_illumination":91,"moon_separation":101.8,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.58,"best_label":"marginal","best_window":"19:10\u201319:45","dark_hours":10.89,"date":"2048-01-28","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":108.7,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.58,"best_label":"marginal","best_window":"19:10\u201319:45","dark_hours":10.86,"date":"2048-01-29","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":115.1,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.5,"best_label":"marginal","best_window":"19:10\u201319:40","dark_hours":10.83,"date":"2048-01-30","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":120.6,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":87.2,"transit_local":"12:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.33,"best_label":"marginal","best_window":"19:15\u201319:35","dark_hours":10.8,"date":"2048-01-31","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":124.7,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:40","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.33,"best_label":"marginal","best_window":"05:40\u201306:00","dark_hours":10.77,"date":"2048-02-01","moon_free_dark_hours":0.35,"moon_illumination":96,"moon_separation":126.9,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.33,"best_label":"marginal","best_window":"05:40\u201306:00","dark_hours":10.74,"date":"2048-02-02","moon_free_dark_hours":1.45,"moon_illumination":90,"moon_separation":126.8,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.1,"transit_local":"12:30","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.42,"best_label":"marginal","best_window":"05:35\u201306:00","dark_hours":10.7,"date":"2048-02-03","moon_free_dark_hours":2.58,"moon_illumination":83,"moon_separation":124.4,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.42,"best_label":"marginal","best_window":"05:30\u201305:55","dark_hours":10.67,"date":"2048-02-04","moon_free_dark_hours":3.75,"moon_illumination":74,"moon_separation":119.8,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.5,"best_label":"marginal","best_window":"05:25\u201305:55","dark_hours":10.63,"date":"2048-02-05","moon_free_dark_hours":4.93,"moon_illumination":63,"moon_separation":113.6,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.58,"best_label":"marginal","best_window":"05:20\u201305:55","dark_hours":10.6,"date":"2048-02-06","moon_free_dark_hours":6.13,"moon_illumination":52,"moon_separation":106.2,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":87.2,"transit_local":"12:15","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":"2048-01-08","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"}}