{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":5.58,"best_label":"good","best_window":"18:45\u201300:20","dark_hours":10.83,"date":"2031-11-11","moon_free_dark_hours":9.67,"moon_illumination":10,"moon_separation":120.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"18:00","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.58,"best_label":"good","best_window":"18:40\u201300:15","dark_hours":10.86,"date":"2031-11-12","moon_free_dark_hours":10.78,"moon_illumination":5,"moon_separation":114.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"17:55","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.5,"best_label":"good","best_window":"18:40\u201300:10","dark_hours":10.89,"date":"2031-11-13","moon_free_dark_hours":10.88,"moon_illumination":1,"moon_separation":106.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"17:50","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.42,"best_label":"good","best_window":"18:40\u201300:05","dark_hours":10.92,"date":"2031-11-14","moon_free_dark_hours":10.92,"moon_illumination":0,"moon_separation":98.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"17:45","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.42,"best_label":"good","best_window":"18:40\u201300:05","dark_hours":10.95,"date":"2031-11-15","moon_free_dark_hours":10.93,"moon_illumination":1,"moon_separation":89.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"17:45","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.33,"best_label":"good","best_window":"18:40\u201300:00","dark_hours":10.98,"date":"2031-11-16","moon_free_dark_hours":10.97,"moon_illumination":6,"moon_separation":81.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"17:40","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.25,"best_label":"good","best_window":"18:40\u201323:55","dark_hours":11.01,"date":"2031-11-17","moon_free_dark_hours":10.13,"moon_illumination":12,"moon_separation":72.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"17:35","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.17,"best_label":"good","best_window":"18:40\u201323:50","dark_hours":11.04,"date":"2031-11-18","moon_free_dark_hours":9.02,"moon_illumination":21,"moon_separation":65.1,"score":null,"score_astronomy":97,"score_weather":null,"transit_alt":87.3,"transit_local":"17:30","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.17,"best_label":"good","best_window":"18:35\u201323:45","dark_hours":11.06,"date":"2031-11-19","moon_free_dark_hours":7.85,"moon_illumination":31,"moon_separation":58.8,"score":null,"score_astronomy":89,"score_weather":null,"transit_alt":87.3,"transit_local":"17:25","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.17,"best_label":"good","best_window":"18:35\u201323:45","dark_hours":11.09,"date":"2031-11-20","moon_free_dark_hours":6.7,"moon_illumination":42,"moon_separation":54.5,"score":null,"score_astronomy":81,"score_weather":null,"transit_alt":87.3,"transit_local":"17:25","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.67,"best_label":"good","best_window":"18:35\u201323:15","dark_hours":11.11,"date":"2031-11-21","moon_free_dark_hours":5.55,"moon_illumination":54,"moon_separation":52.5,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.3,"transit_local":"17:20","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.08,"best_label":"good","best_window":"18:35\u201321:40","dark_hours":11.14,"date":"2031-11-22","moon_free_dark_hours":4.43,"moon_illumination":64,"moon_separation":53.1,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.3,"transit_local":"17:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.33,"best_label":"good","best_window":"18:35\u201318:55","dark_hours":11.16,"date":"2031-11-23","moon_free_dark_hours":3.33,"moon_illumination":75,"moon_separation":56.1,"score":null,"score_astronomy":47,"score_weather":null,"transit_alt":87.3,"transit_local":"17:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.17,"best_label":"marginal","best_window":"18:35\u201323:45","dark_hours":11.19,"date":"2031-11-24","moon_free_dark_hours":2.25,"moon_illumination":83,"moon_separation":61.0,"score":null,"score_astronomy":43,"score_weather":null,"transit_alt":87.3,"transit_local":"17:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.08,"best_label":"good","best_window":"18:35\u201318:40","dark_hours":11.21,"date":"2031-11-25","moon_free_dark_hours":1.18,"moon_illumination":90,"moon_separation":67.2,"score":null,"score_astronomy":43,"score_weather":null,"transit_alt":87.3,"transit_local":"17:05","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.17,"best_label":"good","best_window":"18:35\u201319:45","dark_hours":11.23,"date":"2031-11-26","moon_free_dark_hours":0.15,"moon_illumination":96,"moon_separation":74.2,"score":null,"score_astronomy":46,"score_weather":null,"transit_alt":87.3,"transit_local":"17:00","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.83,"best_label":"good","best_window":"18:35\u201320:25","dark_hours":11.25,"date":"2031-11-27","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":81.7,"score":null,"score_astronomy":53,"score_weather":null,"transit_alt":87.3,"transit_local":"16:55","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.67,"best_label":"good","best_window":"18:35\u201321:15","dark_hours":11.27,"date":"2031-11-28","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":89.4,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":87.3,"transit_local":"16:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.5,"best_label":"good","best_window":"18:35\u201322:05","dark_hours":11.29,"date":"2031-11-29","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":96.9,"score":null,"score_astronomy":73,"score_weather":null,"transit_alt":87.3,"transit_local":"16:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.0,"best_label":"good","best_window":"18:35\u201322:35","dark_hours":11.31,"date":"2031-11-30","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":104.2,"score":null,"score_astronomy":84,"score_weather":null,"transit_alt":87.3,"transit_local":"16:45","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.08,"best_label":"good","best_window":"18:35\u201322:40","dark_hours":11.33,"date":"2031-12-01","moon_free_dark_hours":0.77,"moon_illumination":92,"moon_separation":110.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:40","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.17,"best_label":"good","best_window":"18:35\u201322:45","dark_hours":11.34,"date":"2031-12-02","moon_free_dark_hours":1.7,"moon_illumination":86,"moon_separation":116.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.17,"best_label":"good","best_window":"18:35\u201322:45","dark_hours":11.36,"date":"2031-12-03","moon_free_dark_hours":2.63,"moon_illumination":79,"moon_separation":121.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:30","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.08,"best_label":"good","best_window":"18:35\u201322:40","dark_hours":11.38,"date":"2031-12-04","moon_free_dark_hours":3.58,"moon_illumination":70,"moon_separation":125.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.17,"best_label":"good","best_window":"18:35\u201322:45","dark_hours":11.39,"date":"2031-12-05","moon_free_dark_hours":4.55,"moon_illumination":62,"moon_separation":127.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.08,"best_label":"good","best_window":"18:35\u201322:40","dark_hours":11.4,"date":"2031-12-06","moon_free_dark_hours":5.52,"moon_illumination":52,"moon_separation":127.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.0,"best_label":"good","best_window":"18:35\u201322:35","dark_hours":11.42,"date":"2031-12-07","moon_free_dark_hours":6.5,"moon_illumination":42,"moon_separation":125.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":3.92,"best_label":"good","best_window":"18:35\u201322:30","dark_hours":11.43,"date":"2031-12-08","moon_free_dark_hours":7.52,"moon_illumination":33,"moon_separation":121.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.92,"best_label":"good","best_window":"18:35\u201322:30","dark_hours":11.44,"date":"2031-12-09","moon_free_dark_hours":8.58,"moon_illumination":23,"moon_separation":116.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.83,"best_label":"good","best_window":"18:35\u201322:25","dark_hours":11.45,"date":"2031-12-10","moon_free_dark_hours":9.68,"moon_illumination":15,"moon_separation":109.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.3,"transit_local":"16:05","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":"2031-11-11","target":{"dec":44.25788576,"name":"EM* LkHA 190","ra":314.72388973,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V1057%20Cyg","source":"sesame","spectral_type":"F7/G3I/IIe","type":"Or*","type_text":"Orion-type variable \u2014 a young, erupting star","vmag":12.33}}