{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":7.33,"best_label":"good","best_window":"20:40\u201304:00","dark_hours":9.18,"date":"2030-10-01","moon_free_dark_hours":8.27,"moon_illumination":25,"moon_separation":90.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"21:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":7.33,"best_label":"good","best_window":"20:35\u201303:55","dark_hours":9.23,"date":"2030-10-02","moon_free_dark_hours":7.3,"moon_illumination":36,"moon_separation":81.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"21:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":7.25,"best_label":"good","best_window":"20:35\u201303:50","dark_hours":9.28,"date":"2030-10-03","moon_free_dark_hours":6.23,"moon_illumination":47,"moon_separation":73.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"21:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":7.17,"best_label":"good","best_window":"20:35\u201303:45","dark_hours":9.32,"date":"2030-10-04","moon_free_dark_hours":5.12,"moon_illumination":58,"moon_separation":65.7,"score":null,"score_astronomy":96,"score_weather":null,"transit_alt":87.2,"transit_local":"21:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":7.25,"best_label":"good","best_window":"20:30\u201303:45","dark_hours":9.37,"date":"2030-10-05","moon_free_dark_hours":3.98,"moon_illumination":69,"moon_separation":59.6,"score":null,"score_astronomy":88,"score_weather":null,"transit_alt":87.2,"transit_local":"21:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":7.17,"best_label":"good","best_window":"20:30\u201303:40","dark_hours":9.42,"date":"2030-10-06","moon_free_dark_hours":2.87,"moon_illumination":79,"moon_separation":55.1,"score":null,"score_astronomy":80,"score_weather":null,"transit_alt":87.2,"transit_local":"21:20","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":7.58,"best_label":"marginal","best_window":"20:30\u201304:05","dark_hours":9.46,"date":"2030-10-07","moon_free_dark_hours":1.77,"moon_illumination":87,"moon_separation":52.7,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.2,"transit_local":"21:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":7.5,"best_label":"marginal","best_window":"20:25\u201303:55","dark_hours":9.51,"date":"2030-10-08","moon_free_dark_hours":0.7,"moon_illumination":93,"moon_separation":52.7,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.2,"transit_local":"21:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":7.17,"best_label":"marginal","best_window":"20:25\u201303:35","dark_hours":9.56,"date":"2030-10-09","moon_free_dark_hours":0.0,"moon_illumination":97,"moon_separation":54.8,"score":null,"score_astronomy":48,"score_weather":null,"transit_alt":87.2,"transit_local":"21:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":7.0,"best_label":"marginal","best_window":"20:25\u201303:25","dark_hours":9.6,"date":"2030-10-10","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":58.9,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.2,"transit_local":"21:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.67,"best_label":"good","best_window":"20:20\u201321:00","dark_hours":9.65,"date":"2030-10-11","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":64.3,"score":null,"score_astronomy":60,"score_weather":null,"transit_alt":87.2,"transit_local":"21:00","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.17,"best_label":"good","best_window":"20:20\u201322:30","dark_hours":9.69,"date":"2030-10-12","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":70.6,"score":null,"score_astronomy":69,"score_weather":null,"transit_alt":87.2,"transit_local":"20:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.83,"best_label":"good","best_window":"20:20\u201300:10","dark_hours":9.74,"date":"2030-10-13","moon_free_dark_hours":0.0,"moon_illumination":94,"moon_separation":77.5,"score":null,"score_astronomy":76,"score_weather":null,"transit_alt":87.2,"transit_local":"20:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.92,"best_label":"good","best_window":"20:15\u201301:10","dark_hours":9.78,"date":"2030-10-14","moon_free_dark_hours":0.07,"moon_illumination":89,"moon_separation":84.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.92,"best_label":"good","best_window":"20:15\u201302:10","dark_hours":9.82,"date":"2030-10-15","moon_free_dark_hours":0.82,"moon_illumination":82,"moon_separation":91.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":6.33,"best_label":"good","best_window":"20:15\u201302:35","dark_hours":9.87,"date":"2030-10-16","moon_free_dark_hours":1.65,"moon_illumination":75,"moon_separation":99.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":6.5,"best_label":"good","best_window":"20:10\u201302:40","dark_hours":9.91,"date":"2030-10-17","moon_free_dark_hours":2.53,"moon_illumination":66,"moon_separation":106.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":6.5,"best_label":"good","best_window":"20:10\u201302:40","dark_hours":9.95,"date":"2030-10-18","moon_free_dark_hours":3.5,"moon_illumination":57,"moon_separation":112.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":6.5,"best_label":"good","best_window":"20:10\u201302:40","dark_hours":9.99,"date":"2030-10-19","moon_free_dark_hours":4.5,"moon_illumination":47,"moon_separation":118.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":6.58,"best_label":"good","best_window":"20:05\u201302:40","dark_hours":10.03,"date":"2030-10-20","moon_free_dark_hours":5.55,"moon_illumination":37,"moon_separation":123.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":6.58,"best_label":"good","best_window":"20:05\u201302:40","dark_hours":10.08,"date":"2030-10-21","moon_free_dark_hours":6.62,"moon_illumination":28,"moon_separation":126.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:20","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":6.5,"best_label":"good","best_window":"20:05\u201302:35","dark_hours":10.12,"date":"2030-10-22","moon_free_dark_hours":7.72,"moon_illumination":19,"moon_separation":127.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:15","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":6.42,"best_label":"good","best_window":"20:05\u201302:30","dark_hours":10.16,"date":"2030-10-23","moon_free_dark_hours":8.87,"moon_illumination":11,"moon_separation":126.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":6.5,"best_label":"good","best_window":"20:00\u201302:30","dark_hours":10.2,"date":"2030-10-24","moon_free_dark_hours":10.05,"moon_illumination":5,"moon_separation":123.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":6.42,"best_label":"good","best_window":"20:00\u201302:25","dark_hours":10.24,"date":"2030-10-25","moon_free_dark_hours":10.22,"moon_illumination":1,"moon_separation":117.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":6.33,"best_label":"good","best_window":"20:00\u201302:20","dark_hours":10.28,"date":"2030-10-26","moon_free_dark_hours":10.27,"moon_illumination":0,"moon_separation":110.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"20:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":6.25,"best_label":"good","best_window":"19:00\u201301:15","dark_hours":10.32,"date":"2030-10-27","moon_free_dark_hours":10.3,"moon_illumination":2,"moon_separation":102.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"18:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":6.33,"best_label":"good","best_window":"18:55\u201301:15","dark_hours":10.35,"date":"2030-10-28","moon_free_dark_hours":10.33,"moon_illumination":6,"moon_separation":93.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"18:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":6.25,"best_label":"good","best_window":"18:55\u201301:10","dark_hours":10.39,"date":"2030-10-29","moon_free_dark_hours":9.97,"moon_illumination":13,"moon_separation":84.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"18:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":6.17,"best_label":"good","best_window":"18:55\u201301:05","dark_hours":10.43,"date":"2030-10-30","moon_free_dark_hours":8.9,"moon_illumination":22,"moon_separation":75.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.2,"transit_local":"18:45","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":"2030-10-01","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"}}