{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":1.92,"best_label":"good","best_window":"04:05\u201306:00","dark_hours":10.69,"date":"2046-02-03","moon_free_dark_hours":10.67,"moon_illumination":4,"moon_separation":63.9,"score":null,"score_astronomy":47,"score_weather":null,"transit_alt":87.1,"transit_local":"10:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.83,"best_label":"good","best_window":"04:05\u201305:55","dark_hours":10.65,"date":"2046-02-04","moon_free_dark_hours":10.63,"moon_illumination":1,"moon_separation":64.3,"score":null,"score_astronomy":47,"score_weather":null,"transit_alt":87.1,"transit_local":"09:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.92,"best_label":"good","best_window":"04:00\u201305:55","dark_hours":10.62,"date":"2046-02-05","moon_free_dark_hours":10.6,"moon_illumination":0,"moon_separation":65.9,"score":null,"score_astronomy":49,"score_weather":null,"transit_alt":87.1,"transit_local":"09:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.0,"best_label":"good","best_window":"03:55\u201305:55","dark_hours":10.58,"date":"2046-02-06","moon_free_dark_hours":10.57,"moon_illumination":1,"moon_separation":68.6,"score":null,"score_astronomy":49,"score_weather":null,"transit_alt":87.1,"transit_local":"09:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.08,"best_label":"good","best_window":"03:50\u201305:55","dark_hours":10.54,"date":"2046-02-07","moon_free_dark_hours":10.53,"moon_illumination":4,"moon_separation":72.2,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.1,"transit_local":"09:45","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.17,"best_label":"good","best_window":"03:45\u201305:55","dark_hours":10.51,"date":"2046-02-08","moon_free_dark_hours":9.57,"moon_illumination":8,"moon_separation":76.4,"score":null,"score_astronomy":53,"score_weather":null,"transit_alt":87.1,"transit_local":"09:40","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.08,"best_label":"good","best_window":"03:45\u201305:50","dark_hours":10.47,"date":"2046-02-09","moon_free_dark_hours":8.55,"moon_illumination":14,"moon_separation":81.2,"score":null,"score_astronomy":53,"score_weather":null,"transit_alt":87.1,"transit_local":"09:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.17,"best_label":"good","best_window":"03:40\u201305:50","dark_hours":10.43,"date":"2046-02-10","moon_free_dark_hours":7.52,"moon_illumination":21,"moon_separation":86.3,"score":null,"score_astronomy":55,"score_weather":null,"transit_alt":87.1,"transit_local":"09:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.25,"best_label":"good","best_window":"03:35\u201305:50","dark_hours":10.4,"date":"2046-02-11","moon_free_dark_hours":6.45,"moon_illumination":29,"moon_separation":91.6,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.1,"transit_local":"09:30","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.33,"best_label":"good","best_window":"03:30\u201305:50","dark_hours":10.36,"date":"2046-02-12","moon_free_dark_hours":5.37,"moon_illumination":38,"moon_separation":96.9,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"09:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.33,"best_label":"good","best_window":"03:25\u201305:45","dark_hours":10.32,"date":"2046-02-13","moon_free_dark_hours":4.25,"moon_illumination":48,"moon_separation":102.0,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"09:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.33,"best_label":"good","best_window":"03:25\u201305:45","dark_hours":10.28,"date":"2046-02-14","moon_free_dark_hours":3.13,"moon_illumination":58,"moon_separation":106.8,"score":null,"score_astronomy":60,"score_weather":null,"transit_alt":87.1,"transit_local":"09:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.33,"best_label":"good","best_window":"03:25\u201305:45","dark_hours":10.24,"date":"2046-02-15","moon_free_dark_hours":2.07,"moon_illumination":68,"moon_separation":111.0,"score":null,"score_astronomy":59,"score_weather":null,"transit_alt":87.1,"transit_local":"09:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.33,"best_label":"good","best_window":"03:25\u201305:45","dark_hours":10.2,"date":"2046-02-16","moon_free_dark_hours":1.08,"moon_illumination":78,"moon_separation":114.1,"score":null,"score_astronomy":60,"score_weather":null,"transit_alt":87.1,"transit_local":"09:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.25,"best_label":"good","best_window":"03:25\u201305:40","dark_hours":10.16,"date":"2046-02-17","moon_free_dark_hours":0.27,"moon_illumination":87,"moon_separation":115.9,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"09:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.33,"best_label":"good","best_window":"03:20\u201305:40","dark_hours":10.12,"date":"2046-02-18","moon_free_dark_hours":0.0,"moon_illumination":94,"moon_separation":116.0,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":87.1,"transit_local":"09:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.33,"best_label":"good","best_window":"03:20\u201305:40","dark_hours":10.08,"date":"2046-02-19","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":114.2,"score":null,"score_astronomy":50,"score_weather":null,"transit_alt":87.1,"transit_local":"09:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.33,"best_label":"good","best_window":"03:20\u201305:40","dark_hours":10.03,"date":"2046-02-20","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":110.6,"score":null,"score_astronomy":47,"score_weather":null,"transit_alt":87.1,"transit_local":"08:55","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.25,"best_label":"good","best_window":"03:20\u201305:35","dark_hours":9.99,"date":"2046-02-21","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":105.6,"score":null,"score_astronomy":44,"score_weather":null,"transit_alt":87.1,"transit_local":"08:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.25,"best_label":"good","best_window":"03:20\u201305:35","dark_hours":9.95,"date":"2046-02-22","moon_free_dark_hours":0.72,"moon_illumination":94,"moon_separation":99.7,"score":null,"score_astronomy":43,"score_weather":null,"transit_alt":87.1,"transit_local":"08:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.33,"best_label":"good","best_window":"03:15\u201305:35","dark_hours":9.91,"date":"2046-02-23","moon_free_dark_hours":2.0,"moon_illumination":87,"moon_separation":93.3,"score":null,"score_astronomy":42,"score_weather":null,"transit_alt":87.1,"transit_local":"08:40","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.33,"best_label":"good","best_window":"03:10\u201305:30","dark_hours":9.86,"date":"2046-02-24","moon_free_dark_hours":3.28,"moon_illumination":78,"moon_separation":86.9,"score":null,"score_astronomy":43,"score_weather":null,"transit_alt":87.1,"transit_local":"08:40","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.42,"best_label":"good","best_window":"03:05\u201305:30","dark_hours":9.82,"date":"2046-02-25","moon_free_dark_hours":4.52,"moon_illumination":68,"moon_separation":80.9,"score":null,"score_astronomy":45,"score_weather":null,"transit_alt":87.1,"transit_local":"08:35","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.58,"best_label":"good","best_window":"02:55\u201305:30","dark_hours":9.77,"date":"2046-02-26","moon_free_dark_hours":5.72,"moon_illumination":58,"moon_separation":75.5,"score":null,"score_astronomy":49,"score_weather":null,"transit_alt":87.1,"transit_local":"08:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.75,"best_label":"good","best_window":"02:45\u201305:30","dark_hours":9.73,"date":"2046-02-27","moon_free_dark_hours":6.8,"moon_illumination":47,"moon_separation":70.9,"score":null,"score_astronomy":55,"score_weather":null,"transit_alt":87.1,"transit_local":"08:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.92,"best_label":"good","best_window":"02:30\u201305:25","dark_hours":9.69,"date":"2046-02-28","moon_free_dark_hours":7.73,"moon_illumination":37,"moon_separation":67.4,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":87.1,"transit_local":"08:25","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.0,"best_label":"good","best_window":"02:25\u201305:25","dark_hours":9.64,"date":"2046-03-01","moon_free_dark_hours":8.5,"moon_illumination":28,"moon_separation":65.0,"score":null,"score_astronomy":68,"score_weather":null,"transit_alt":87.1,"transit_local":"08:20","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":3.08,"best_label":"good","best_window":"02:20\u201305:25","dark_hours":9.59,"date":"2046-03-02","moon_free_dark_hours":9.12,"moon_illumination":20,"moon_separation":63.9,"score":null,"score_astronomy":75,"score_weather":null,"transit_alt":87.1,"transit_local":"08:15","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.08,"best_label":"good","best_window":"02:15\u201305:20","dark_hours":9.55,"date":"2046-03-03","moon_free_dark_hours":9.52,"moon_illumination":12,"moon_separation":64.1,"score":null,"score_astronomy":79,"score_weather":null,"transit_alt":87.1,"transit_local":"08:10","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.08,"best_label":"good","best_window":"02:15\u201305:20","dark_hours":9.5,"date":"2046-03-04","moon_free_dark_hours":9.48,"moon_illumination":7,"moon_separation":65.4,"score":null,"score_astronomy":81,"score_weather":null,"transit_alt":87.1,"transit_local":"08:05","verdict":"unknown","weather_source":"none","weekday":"Sun"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2046-02-03","target":{"common_name":"Vega","dec":38.78368896,"name":"* alf Lyr","ra":279.23473479,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=Vega","source":"sesame","spectral_type":"A0V","type":"dS*","type_text":"delta Scuti variable","vmag":0.03}}