{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":4.67,"best_label":"good","best_window":"00:20\u201305:00","dark_hours":7.2,"date":"2044-04-16","moon_free_dark_hours":3.02,"moon_illumination":81,"moon_separation":70.0,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.1,"transit_local":"06:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.58,"best_label":"good","best_window":"00:20\u201304:55","dark_hours":7.14,"date":"2044-04-17","moon_free_dark_hours":3.9,"moon_illumination":73,"moon_separation":67.8,"score":null,"score_astronomy":86,"score_weather":null,"transit_alt":87.1,"transit_local":"06:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.67,"best_label":"good","best_window":"00:15\u201304:55","dark_hours":7.08,"date":"2044-04-18","moon_free_dark_hours":4.63,"moon_illumination":65,"moon_separation":66.5,"score":null,"score_astronomy":92,"score_weather":null,"transit_alt":87.1,"transit_local":"06:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.75,"best_label":"good","best_window":"00:10\u201304:55","dark_hours":7.02,"date":"2044-04-19","moon_free_dark_hours":5.25,"moon_illumination":55,"moon_separation":66.3,"score":null,"score_astronomy":97,"score_weather":null,"transit_alt":87.1,"transit_local":"06:05","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.75,"best_label":"good","best_window":"00:05\u201304:50","dark_hours":6.97,"date":"2044-04-20","moon_free_dark_hours":5.73,"moon_illumination":46,"moon_separation":67.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"06:00","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.83,"best_label":"good","best_window":"00:00\u201304:50","dark_hours":6.91,"date":"2044-04-21","moon_free_dark_hours":6.13,"moon_illumination":36,"moon_separation":69.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:55","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.75,"best_label":"good","best_window":"00:00\u201304:45","dark_hours":6.85,"date":"2044-04-22","moon_free_dark_hours":6.5,"moon_illumination":27,"moon_separation":72.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.83,"best_label":"good","best_window":"23:55\u201304:45","dark_hours":6.79,"date":"2044-04-23","moon_free_dark_hours":6.77,"moon_illumination":18,"moon_separation":76.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.92,"best_label":"good","best_window":"23:50\u201304:45","dark_hours":6.73,"date":"2044-04-24","moon_free_dark_hours":6.72,"moon_illumination":11,"moon_separation":81.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:45","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.92,"best_label":"good","best_window":"23:45\u201304:40","dark_hours":6.67,"date":"2044-04-25","moon_free_dark_hours":6.65,"moon_illumination":5,"moon_separation":86.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:40","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.0,"best_label":"good","best_window":"23:40\u201304:40","dark_hours":6.62,"date":"2044-04-26","moon_free_dark_hours":6.6,"moon_illumination":1,"moon_separation":92.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.0,"best_label":"good","best_window":"23:40\u201304:40","dark_hours":6.56,"date":"2044-04-27","moon_free_dark_hours":6.55,"moon_illumination":0,"moon_separation":97.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.0,"best_label":"good","best_window":"23:35\u201304:35","dark_hours":6.5,"date":"2044-04-28","moon_free_dark_hours":6.48,"moon_illumination":2,"moon_separation":103.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.08,"best_label":"good","best_window":"23:30\u201304:35","dark_hours":6.44,"date":"2044-04-29","moon_free_dark_hours":5.73,"moon_illumination":6,"moon_separation":107.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.0,"best_label":"good","best_window":"23:30\u201304:30","dark_hours":6.38,"date":"2044-04-30","moon_free_dark_hours":4.45,"moon_illumination":14,"moon_separation":111.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.08,"best_label":"good","best_window":"23:25\u201304:30","dark_hours":6.33,"date":"2044-05-01","moon_free_dark_hours":3.37,"moon_illumination":23,"moon_separation":113.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.08,"best_label":"good","best_window":"23:25\u201304:30","dark_hours":6.27,"date":"2044-05-02","moon_free_dark_hours":2.5,"moon_illumination":33,"moon_separation":113.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.08,"best_label":"good","best_window":"23:20\u201304:25","dark_hours":6.21,"date":"2044-05-03","moon_free_dark_hours":1.83,"moon_illumination":44,"moon_separation":112.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.08,"best_label":"good","best_window":"23:20\u201304:25","dark_hours":6.15,"date":"2044-05-04","moon_free_dark_hours":1.32,"moon_illumination":56,"moon_separation":110.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.08,"best_label":"good","best_window":"23:20\u201304:25","dark_hours":6.1,"date":"2044-05-05","moon_free_dark_hours":0.87,"moon_illumination":66,"moon_separation":106.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"05:00","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.92,"best_label":"good","best_window":"23:25\u201304:20","dark_hours":6.04,"date":"2044-05-06","moon_free_dark_hours":0.48,"moon_illumination":76,"moon_separation":102.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:55","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.92,"best_label":"good","best_window":"23:25\u201304:20","dark_hours":5.98,"date":"2044-05-07","moon_free_dark_hours":0.12,"moon_illumination":84,"moon_separation":97.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.67,"best_label":"good","best_window":"23:40\u201304:20","dark_hours":5.93,"date":"2044-05-08","moon_free_dark_hours":0.0,"moon_illumination":91,"moon_separation":92.6,"score":null,"score_astronomy":83,"score_weather":null,"transit_alt":87.1,"transit_local":"04:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.17,"best_label":"good","best_window":"00:05\u201304:15","dark_hours":5.87,"date":"2044-05-09","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":87.6,"score":null,"score_astronomy":79,"score_weather":null,"transit_alt":87.1,"transit_local":"04:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.83,"best_label":"good","best_window":"00:25\u201304:15","dark_hours":5.81,"date":"2044-05-10","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":82.7,"score":null,"score_astronomy":75,"score_weather":null,"transit_alt":87.1,"transit_local":"04:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.75,"best_label":"good","best_window":"00:30\u201304:15","dark_hours":5.76,"date":"2044-05-11","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":78.1,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.1,"transit_local":"04:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.92,"best_label":"good","best_window":"00:15\u201304:10","dark_hours":5.7,"date":"2044-05-12","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":74.1,"score":null,"score_astronomy":68,"score_weather":null,"transit_alt":87.1,"transit_local":"04:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.67,"best_label":"good","best_window":"23:30\u201304:10","dark_hours":5.65,"date":"2044-05-13","moon_free_dark_hours":0.13,"moon_illumination":96,"moon_separation":70.7,"score":null,"score_astronomy":68,"score_weather":null,"transit_alt":87.1,"transit_local":"04:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.67,"best_label":"good","best_window":"22:30\u201304:10","dark_hours":5.6,"date":"2044-05-14","moon_free_dark_hours":1.05,"moon_illumination":92,"moon_separation":68.2,"score":null,"score_astronomy":83,"score_weather":null,"transit_alt":87.1,"transit_local":"04:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.5,"best_label":"good","best_window":"22:35\u201304:05","dark_hours":5.54,"date":"2044-05-15","moon_free_dark_hours":1.83,"moon_illumination":86,"moon_separation":66.6,"score":null,"score_astronomy":90,"score_weather":null,"transit_alt":87.1,"transit_local":"04:20","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":"2044-04-16","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}}
