{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":3.0,"best_label":"good","best_window":"18:35\u201321:35","dark_hours":11.51,"date":"2041-12-22","moon_free_dark_hours":11.5,"moon_illumination":0,"moon_separation":84.4,"score":null,"score_astronomy":76,"score_weather":null,"transit_alt":87.3,"transit_local":"15:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.83,"best_label":"good","best_window":"18:40\u201321:30","dark_hours":11.51,"date":"2041-12-23","moon_free_dark_hours":11.48,"moon_illumination":1,"moon_separation":78.1,"score":null,"score_astronomy":73,"score_weather":null,"transit_alt":87.3,"transit_local":"15:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.83,"best_label":"good","best_window":"18:40\u201321:30","dark_hours":11.5,"date":"2041-12-24","moon_free_dark_hours":11.48,"moon_illumination":3,"moon_separation":72.2,"score":null,"score_astronomy":71,"score_weather":null,"transit_alt":87.2,"transit_local":"15:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.75,"best_label":"good","best_window":"18:40\u201321:25","dark_hours":11.5,"date":"2041-12-25","moon_free_dark_hours":11.1,"moon_illumination":9,"moon_separation":67.3,"score":null,"score_astronomy":67,"score_weather":null,"transit_alt":87.3,"transit_local":"15:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.67,"best_label":"good","best_window":"18:40\u201321:20","dark_hours":11.49,"date":"2041-12-26","moon_free_dark_hours":9.8,"moon_illumination":16,"moon_separation":63.6,"score":null,"score_astronomy":61,"score_weather":null,"transit_alt":87.3,"transit_local":"15:00","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.42,"best_label":"good","best_window":"18:40\u201321:05","dark_hours":11.49,"date":"2041-12-27","moon_free_dark_hours":8.53,"moon_illumination":26,"moon_separation":61.7,"score":null,"score_astronomy":53,"score_weather":null,"transit_alt":87.3,"transit_local":"14:55","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.25,"best_label":"good","best_window":"18:40\u201320:55","dark_hours":11.48,"date":"2041-12-28","moon_free_dark_hours":7.27,"moon_illumination":36,"moon_separation":61.6,"score":null,"score_astronomy":45,"score_weather":null,"transit_alt":87.2,"transit_local":"14:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.0,"best_label":"good","best_window":"18:40\u201320:40","dark_hours":11.48,"date":"2041-12-29","moon_free_dark_hours":6.03,"moon_illumination":48,"moon_separation":63.4,"score":null,"score_astronomy":37,"score_weather":null,"transit_alt":87.2,"transit_local":"14:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.33,"best_label":"good","best_window":"18:40\u201320:00","dark_hours":11.47,"date":"2041-12-30","moon_free_dark_hours":4.83,"moon_illumination":59,"moon_separation":66.9,"score":null,"score_astronomy":31,"score_weather":null,"transit_alt":87.3,"transit_local":"14:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.33,"best_label":"good","best_window":"18:45\u201319:05","dark_hours":11.46,"date":"2041-12-31","moon_free_dark_hours":3.63,"moon_illumination":70,"moon_separation":71.6,"score":null,"score_astronomy":26,"score_weather":null,"transit_alt":87.3,"transit_local":"14:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.17,"best_label":"marginal","best_window":"18:10\u201321:20","dark_hours":11.45,"date":"2042-01-01","moon_free_dark_hours":2.42,"moon_illumination":79,"moon_separation":77.3,"score":null,"score_astronomy":24,"score_weather":null,"transit_alt":87.3,"transit_local":"14:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.08,"best_label":"good","best_window":"18:45\u201318:50","dark_hours":11.44,"date":"2042-01-02","moon_free_dark_hours":1.18,"moon_illumination":87,"moon_separation":83.4,"score":null,"score_astronomy":23,"score_weather":null,"transit_alt":87.2,"transit_local":"14:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.42,"best_label":"good","best_window":"18:45\u201319:10","dark_hours":11.43,"date":"2042-01-03","moon_free_dark_hours":0.02,"moon_illumination":94,"moon_separation":89.8,"score":null,"score_astronomy":25,"score_weather":null,"transit_alt":87.3,"transit_local":"14:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.92,"best_label":"good","best_window":"18:45\u201319:40","dark_hours":11.41,"date":"2042-01-04","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":96.1,"score":null,"score_astronomy":26,"score_weather":null,"transit_alt":87.3,"transit_local":"14:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.42,"best_label":"good","best_window":"18:45\u201320:10","dark_hours":11.4,"date":"2042-01-05","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":102.1,"score":null,"score_astronomy":29,"score_weather":null,"transit_alt":87.3,"transit_local":"14:20","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.42,"best_label":"good","best_window":"18:50\u201320:15","dark_hours":11.39,"date":"2042-01-06","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":107.4,"score":null,"score_astronomy":31,"score_weather":null,"transit_alt":87.3,"transit_local":"14:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.42,"best_label":"good","best_window":"18:50\u201320:15","dark_hours":11.37,"date":"2042-01-07","moon_free_dark_hours":0.0,"moon_illumination":97,"moon_separation":112.0,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":87.2,"transit_local":"14:15","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.42,"best_label":"good","best_window":"18:50\u201320:15","dark_hours":11.36,"date":"2042-01-08","moon_free_dark_hours":0.42,"moon_illumination":93,"moon_separation":115.4,"score":null,"score_astronomy":39,"score_weather":null,"transit_alt":87.3,"transit_local":"14:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.5,"best_label":"good","best_window":"18:50\u201320:20","dark_hours":11.34,"date":"2042-01-09","moon_free_dark_hours":1.48,"moon_illumination":88,"moon_separation":117.7,"score":null,"score_astronomy":40,"score_weather":null,"transit_alt":87.3,"transit_local":"14:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.5,"best_label":"good","best_window":"18:50\u201320:20","dark_hours":11.32,"date":"2042-01-10","moon_free_dark_hours":2.52,"moon_illumination":81,"moon_separation":118.7,"score":null,"score_astronomy":38,"score_weather":null,"transit_alt":87.3,"transit_local":"14:00","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.42,"best_label":"good","best_window":"18:50\u201320:15","dark_hours":11.3,"date":"2042-01-11","moon_free_dark_hours":3.52,"moon_illumination":73,"moon_separation":118.3,"score":null,"score_astronomy":37,"score_weather":null,"transit_alt":87.2,"transit_local":"13:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.33,"best_label":"good","best_window":"18:55\u201320:15","dark_hours":11.28,"date":"2042-01-12","moon_free_dark_hours":4.5,"moon_illumination":64,"moon_separation":116.6,"score":null,"score_astronomy":35,"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":11.26,"date":"2042-01-13","moon_free_dark_hours":5.48,"moon_illumination":55,"moon_separation":113.7,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":87.3,"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":11.24,"date":"2042-01-14","moon_free_dark_hours":6.5,"moon_illumination":46,"moon_separation":109.8,"score":null,"score_astronomy":32,"score_weather":null,"transit_alt":87.3,"transit_local":"13:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.08,"best_label":"good","best_window":"18:55\u201320:00","dark_hours":11.22,"date":"2042-01-15","moon_free_dark_hours":7.57,"moon_illumination":36,"moon_separation":105.0,"score":null,"score_astronomy":30,"score_weather":null,"transit_alt":87.3,"transit_local":"13:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.0,"best_label":"good","best_window":"18:55\u201319:55","dark_hours":11.2,"date":"2042-01-16","moon_free_dark_hours":8.67,"moon_illumination":27,"moon_separation":99.6,"score":null,"score_astronomy":29,"score_weather":null,"transit_alt":87.2,"transit_local":"13:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.92,"best_label":"good","best_window":"19:00\u201319:55","dark_hours":11.18,"date":"2042-01-17","moon_free_dark_hours":9.82,"moon_illumination":18,"moon_separation":93.5,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":87.3,"transit_local":"13:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.83,"best_label":"good","best_window":"19:00\u201319:50","dark_hours":11.15,"date":"2042-01-18","moon_free_dark_hours":10.95,"moon_illumination":11,"moon_separation":87.2,"score":null,"score_astronomy":26,"score_weather":null,"transit_alt":87.3,"transit_local":"13:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.75,"best_label":"good","best_window":"19:00\u201319:45","dark_hours":11.13,"date":"2042-01-19","moon_free_dark_hours":11.12,"moon_illumination":5,"moon_separation":80.7,"score":null,"score_astronomy":25,"score_weather":null,"transit_alt":87.3,"transit_local":"13:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.67,"best_label":"good","best_window":"19:00\u201319:40","dark_hours":11.1,"date":"2042-01-20","moon_free_dark_hours":11.1,"moon_illumination":1,"moon_separation":74.5,"score":null,"score_astronomy":23,"score_weather":null,"transit_alt":87.3,"transit_local":"13:20","verdict":"unknown","weather_source":"none","weekday":"Mon"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2041-12-22","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}}
