{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":10.81,"date":"2033-01-30","moon_free_dark_hours":10.8,"moon_illumination":0,"moon_separation":37.5,"score":null,"score_astronomy":1,"score_weather":null,"transit_alt":71.1,"transit_local":"11:40","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":10.78,"date":"2033-01-31","moon_free_dark_hours":10.77,"moon_illumination":2,"moon_separation":41.2,"score":null,"score_astronomy":1,"score_weather":null,"transit_alt":71.1,"transit_local":"11:35","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.0,"best_label":null,"best_window":null,"dark_hours":10.75,"date":"2033-02-01","moon_free_dark_hours":10.18,"moon_illumination":6,"moon_separation":48.7,"score":null,"score_astronomy":1,"score_weather":null,"transit_alt":71.1,"transit_local":"11:30","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.08,"best_label":"marginal","best_window":"06:25\u201306:30","dark_hours":10.71,"date":"2033-02-02","moon_free_dark_hours":8.95,"moon_illumination":13,"moon_separation":58.4,"score":null,"score_astronomy":1,"score_weather":null,"transit_alt":71.1,"transit_local":"11:30","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.08,"best_label":"marginal","best_window":"05:55\u201306:00","dark_hours":10.68,"date":"2033-02-03","moon_free_dark_hours":7.73,"moon_illumination":22,"moon_separation":69.2,"score":null,"score_astronomy":2,"score_weather":null,"transit_alt":71.1,"transit_local":"11:25","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.17,"best_label":"marginal","best_window":"06:20\u201306:30","dark_hours":10.65,"date":"2033-02-04","moon_free_dark_hours":6.55,"moon_illumination":32,"moon_separation":80.4,"score":null,"score_astronomy":3,"score_weather":null,"transit_alt":71.1,"transit_local":"11:20","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.25,"best_label":"marginal","best_window":"06:15\u201306:30","dark_hours":10.61,"date":"2033-02-05","moon_free_dark_hours":5.4,"moon_illumination":43,"moon_separation":91.5,"score":null,"score_astronomy":3,"score_weather":null,"transit_alt":71.1,"transit_local":"11:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.25,"best_label":"marginal","best_window":"06:10\u201306:25","dark_hours":10.58,"date":"2033-02-06","moon_free_dark_hours":4.3,"moon_illumination":54,"moon_separation":102.3,"score":null,"score_astronomy":3,"score_weather":null,"transit_alt":71.1,"transit_local":"11:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.25,"best_label":"marginal","best_window":"05:40\u201305:55","dark_hours":10.54,"date":"2033-02-07","moon_free_dark_hours":3.28,"moon_illumination":65,"moon_separation":112.6,"score":null,"score_astronomy":4,"score_weather":null,"transit_alt":71.1,"transit_local":"11:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.33,"best_label":"marginal","best_window":"05:35\u201305:55","dark_hours":10.5,"date":"2033-02-08","moon_free_dark_hours":2.33,"moon_illumination":74,"moon_separation":122.1,"score":null,"score_astronomy":5,"score_weather":null,"transit_alt":71.1,"transit_local":"11:05","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.33,"best_label":"marginal","best_window":"05:30\u201305:50","dark_hours":10.47,"date":"2033-02-09","moon_free_dark_hours":1.45,"moon_illumination":82,"moon_separation":130.5,"score":null,"score_astronomy":5,"score_weather":null,"transit_alt":71.1,"transit_local":"11:00","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.5,"best_label":"marginal","best_window":"05:55\u201306:25","dark_hours":10.43,"date":"2033-02-10","moon_free_dark_hours":0.68,"moon_illumination":89,"moon_separation":137.2,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":71.1,"transit_local":"10:55","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.92,"best_label":"marginal","best_window":"05:25\u201306:20","dark_hours":10.39,"date":"2033-02-11","moon_free_dark_hours":0.0,"moon_illumination":95,"moon_separation":141.5,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":71.1,"transit_local":"10:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.5,"best_label":"marginal","best_window":"05:20\u201305:50","dark_hours":10.35,"date":"2033-02-12","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":142.7,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":71.1,"transit_local":"10:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.5,"best_label":"marginal","best_window":"05:15\u201305:45","dark_hours":10.31,"date":"2033-02-13","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":140.6,"score":null,"score_astronomy":6,"score_weather":null,"transit_alt":71.1,"transit_local":"10:45","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.58,"best_label":"marginal","best_window":"05:10\u201305:45","dark_hours":10.27,"date":"2033-02-14","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":135.7,"score":null,"score_astronomy":7,"score_weather":null,"transit_alt":71.1,"transit_local":"10:40","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.08,"best_label":"marginal","best_window":"05:10\u201306:15","dark_hours":10.23,"date":"2033-02-15","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":129.0,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":71.1,"transit_local":"10:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.08,"best_label":"good","best_window":"05:40\u201305:45","dark_hours":10.19,"date":"2033-02-16","moon_free_dark_hours":0.82,"moon_illumination":94,"moon_separation":121.0,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":71.1,"transit_local":"10:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.25,"best_label":"marginal","best_window":"05:00\u201306:15","dark_hours":10.15,"date":"2033-02-17","moon_free_dark_hours":1.72,"moon_illumination":88,"moon_separation":112.3,"score":null,"score_astronomy":8,"score_weather":null,"transit_alt":71.1,"transit_local":"10:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.33,"best_label":"marginal","best_window":"04:55\u201306:15","dark_hours":10.11,"date":"2033-02-18","moon_free_dark_hours":2.65,"moon_illumination":82,"moon_separation":103.2,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":71.1,"transit_local":"10:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.33,"best_label":"marginal","best_window":"04:50\u201306:10","dark_hours":10.07,"date":"2033-02-19","moon_free_dark_hours":3.58,"moon_illumination":74,"moon_separation":93.7,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":71.1,"transit_local":"10:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.08,"best_label":"good","best_window":"05:35\u201305:40","dark_hours":10.03,"date":"2033-02-20","moon_free_dark_hours":4.53,"moon_illumination":65,"moon_separation":84.1,"score":null,"score_astronomy":9,"score_weather":null,"transit_alt":71.1,"transit_local":"10:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.08,"best_label":"good","best_window":"05:30\u201305:35","dark_hours":9.99,"date":"2033-02-21","moon_free_dark_hours":5.48,"moon_illumination":56,"moon_separation":74.4,"score":null,"score_astronomy":10,"score_weather":null,"transit_alt":71.1,"transit_local":"10:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.17,"best_label":"good","best_window":"05:25\u201305:35","dark_hours":9.94,"date":"2033-02-22","moon_free_dark_hours":6.42,"moon_illumination":46,"moon_separation":64.8,"score":null,"score_astronomy":11,"score_weather":null,"transit_alt":71.1,"transit_local":"10:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.25,"best_label":"good","best_window":"05:20\u201305:35","dark_hours":9.9,"date":"2033-02-23","moon_free_dark_hours":7.32,"moon_illumination":35,"moon_separation":55.5,"score":null,"score_astronomy":13,"score_weather":null,"transit_alt":71.1,"transit_local":"10:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.33,"best_label":"good","best_window":"05:10\u201305:30","dark_hours":9.86,"date":"2033-02-24","moon_free_dark_hours":8.15,"moon_illumination":25,"moon_separation":47.0,"score":null,"score_astronomy":14,"score_weather":null,"transit_alt":71.1,"transit_local":"10:00","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":0.5,"best_label":"good","best_window":"05:00\u201305:30","dark_hours":9.81,"date":"2033-02-25","moon_free_dark_hours":8.95,"moon_illumination":16,"moon_separation":40.5,"score":null,"score_astronomy":17,"score_weather":null,"transit_alt":71.1,"transit_local":"09:55","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.67,"best_label":"good","best_window":"04:50\u201305:30","dark_hours":9.77,"date":"2033-02-26","moon_free_dark_hours":9.7,"moon_illumination":9,"moon_separation":37.3,"score":null,"score_astronomy":19,"score_weather":null,"transit_alt":71.1,"transit_local":"09:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":0.67,"best_label":"good","best_window":"04:50\u201305:30","dark_hours":9.72,"date":"2033-02-27","moon_free_dark_hours":9.72,"moon_illumination":3,"moon_separation":38.9,"score":null,"score_astronomy":21,"score_weather":null,"transit_alt":71.1,"transit_local":"09:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.67,"best_label":"good","best_window":"04:45\u201305:25","dark_hours":9.68,"date":"2033-02-28","moon_free_dark_hours":9.67,"moon_illumination":0,"moon_separation":44.9,"score":null,"score_astronomy":21,"score_weather":null,"transit_alt":71.1,"transit_local":"09:45","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":"2033-01-30","target":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648}}
