{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":4.83,"best_label":"good","best_window":"23:05\u201303:55","dark_hours":4.9,"date":"2036-07-12","moon_free_dark_hours":0.35,"moon_illumination":83,"moon_separation":75.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.0,"best_label":"good","best_window":"23:00\u201304:00","dark_hours":4.94,"date":"2036-07-13","moon_free_dark_hours":0.87,"moon_illumination":75,"moon_separation":81.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:30","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.0,"best_label":"good","best_window":"23:00\u201304:00","dark_hours":4.98,"date":"2036-07-14","moon_free_dark_hours":1.33,"moon_illumination":66,"moon_separation":87.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.0,"best_label":"good","best_window":"23:00\u201304:00","dark_hours":5.02,"date":"2036-07-15","moon_free_dark_hours":1.83,"moon_illumination":57,"moon_separation":94.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.0,"best_label":"good","best_window":"23:00\u201304:00","dark_hours":5.07,"date":"2036-07-16","moon_free_dark_hours":2.33,"moon_illumination":47,"moon_separation":100.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.11,"date":"2036-07-17","moon_free_dark_hours":2.88,"moon_illumination":36,"moon_separation":107.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.16,"date":"2036-07-18","moon_free_dark_hours":3.53,"moon_illumination":26,"moon_separation":112.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.2,"date":"2036-07-19","moon_free_dark_hours":4.25,"moon_illumination":17,"moon_separation":117.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.25,"best_label":"good","best_window":"22:55\u201304:10","dark_hours":5.25,"date":"2036-07-20","moon_free_dark_hours":5.1,"moon_illumination":9,"moon_separation":120.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.33,"best_label":"good","best_window":"22:50\u201304:10","dark_hours":5.3,"date":"2036-07-21","moon_free_dark_hours":5.28,"moon_illumination":3,"moon_separation":121.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.33,"best_label":"good","best_window":"22:50\u201304:10","dark_hours":5.35,"date":"2036-07-22","moon_free_dark_hours":5.33,"moon_illumination":0,"moon_separation":120.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:55","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.33,"best_label":"good","best_window":"22:50\u201304:10","dark_hours":5.4,"date":"2036-07-23","moon_free_dark_hours":5.38,"moon_illumination":0,"moon_separation":116.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.5,"best_label":"good","best_window":"22:45\u201304:15","dark_hours":5.45,"date":"2036-07-24","moon_free_dark_hours":5.43,"moon_illumination":3,"moon_separation":111.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.5,"best_label":"good","best_window":"22:45\u201304:15","dark_hours":5.5,"date":"2036-07-25","moon_free_dark_hours":5.48,"moon_illumination":9,"moon_separation":104.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:45","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.5,"best_label":"good","best_window":"22:45\u201304:15","dark_hours":5.56,"date":"2036-07-26","moon_free_dark_hours":5.37,"moon_illumination":17,"moon_separation":97.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:40","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.67,"best_label":"good","best_window":"22:40\u201304:20","dark_hours":5.61,"date":"2036-07-27","moon_free_dark_hours":4.83,"moon_illumination":27,"moon_separation":89.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:35","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.67,"best_label":"good","best_window":"22:40\u201304:20","dark_hours":5.66,"date":"2036-07-28","moon_free_dark_hours":4.32,"moon_illumination":37,"moon_separation":82.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.67,"best_label":"good","best_window":"22:40\u201304:20","dark_hours":5.72,"date":"2036-07-29","moon_free_dark_hours":3.82,"moon_illumination":48,"moon_separation":76.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.83,"best_label":"good","best_window":"22:35\u201304:25","dark_hours":5.77,"date":"2036-07-30","moon_free_dark_hours":3.28,"moon_illumination":58,"moon_separation":70.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:25","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.83,"best_label":"good","best_window":"22:35\u201304:25","dark_hours":5.82,"date":"2036-07-31","moon_free_dark_hours":2.73,"moon_illumination":68,"moon_separation":65.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:20","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.83,"best_label":"good","best_window":"22:35\u201304:25","dark_hours":5.88,"date":"2036-08-01","moon_free_dark_hours":2.12,"moon_illumination":77,"moon_separation":61.8,"score":null,"score_astronomy":97,"score_weather":null,"transit_alt":87.1,"transit_local":"23:15","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":6.0,"best_label":"good","best_window":"22:30\u201304:30","dark_hours":5.94,"date":"2036-08-02","moon_free_dark_hours":1.45,"moon_illumination":85,"moon_separation":59.5,"score":null,"score_astronomy":91,"score_weather":null,"transit_alt":87.1,"transit_local":"23:10","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":6.0,"best_label":"good","best_window":"22:30\u201304:30","dark_hours":5.99,"date":"2036-08-03","moon_free_dark_hours":0.72,"moon_illumination":91,"moon_separation":58.6,"score":null,"score_astronomy":86,"score_weather":null,"transit_alt":87.1,"transit_local":"23:05","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.83,"best_label":"good","best_window":"01:20\u201302:10","dark_hours":6.05,"date":"2036-08-04","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":59.3,"score":null,"score_astronomy":61,"score_weather":null,"transit_alt":87.1,"transit_local":"23:05","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":0.33,"best_label":"good","best_window":"22:25\u201322:45","dark_hours":6.1,"date":"2036-08-05","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":61.5,"score":null,"score_astronomy":60,"score_weather":null,"transit_alt":87.1,"transit_local":"23:00","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.25,"best_label":"good","best_window":"22:25\u201323:40","dark_hours":6.16,"date":"2036-08-06","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":64.8,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":87.1,"transit_local":"22:55","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.08,"best_label":"good","best_window":"22:25\u201301:30","dark_hours":6.22,"date":"2036-08-07","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":69.2,"score":null,"score_astronomy":67,"score_weather":null,"transit_alt":87.1,"transit_local":"22:50","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":3.75,"best_label":"good","best_window":"22:20\u201302:05","dark_hours":6.27,"date":"2036-08-08","moon_free_dark_hours":0.0,"moon_illumination":97,"moon_separation":74.4,"score":null,"score_astronomy":73,"score_weather":null,"transit_alt":87.1,"transit_local":"22:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.33,"best_label":"good","best_window":"22:20\u201302:40","dark_hours":6.33,"date":"2036-08-09","moon_free_dark_hours":0.0,"moon_illumination":93,"moon_separation":80.2,"score":null,"score_astronomy":78,"score_weather":null,"transit_alt":87.1,"transit_local":"22:45","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.17,"best_label":"good","best_window":"22:15\u201303:25","dark_hours":6.39,"date":"2036-08-10","moon_free_dark_hours":0.12,"moon_illumination":87,"moon_separation":86.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"22:40","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":"2036-07-12","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}}