{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":4.83,"best_label":"marginal","best_window":"23:05\u201303:55","dark_hours":4.89,"date":"2033-07-12","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":57.6,"score":null,"score_astronomy":49,"score_weather":null,"transit_alt":87.1,"transit_local":"00:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.33,"best_label":"good","best_window":"23:00\u201300:20","dark_hours":4.93,"date":"2033-07-13","moon_free_dark_hours":0.0,"moon_illumination":97,"moon_separation":60.6,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.1,"transit_local":"00:30","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.67,"best_label":"good","best_window":"23:00\u201302:40","dark_hours":4.97,"date":"2033-07-14","moon_free_dark_hours":0.0,"moon_illumination":92,"moon_separation":65.5,"score":null,"score_astronomy":68,"score_weather":null,"transit_alt":87.1,"transit_local":"00:25","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.0,"best_label":"good","best_window":"23:00\u201304:00","dark_hours":5.01,"date":"2033-07-15","moon_free_dark_hours":0.0,"moon_illumination":84,"moon_separation":71.7,"score":null,"score_astronomy":78,"score_weather":null,"transit_alt":87.1,"transit_local":"00:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.0,"best_label":"good","best_window":"23:00\u201304:00","dark_hours":5.06,"date":"2033-07-16","moon_free_dark_hours":0.45,"moon_illumination":75,"moon_separation":79.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.1,"date":"2033-07-17","moon_free_dark_hours":1.05,"moon_illumination":64,"moon_separation":86.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.15,"date":"2033-07-18","moon_free_dark_hours":1.67,"moon_illumination":53,"moon_separation":94.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.19,"date":"2033-07-19","moon_free_dark_hours":2.35,"moon_illumination":41,"moon_separation":102.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:05","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.17,"best_label":"good","best_window":"22:55\u201304:05","dark_hours":5.24,"date":"2033-07-20","moon_free_dark_hours":3.05,"moon_illumination":31,"moon_separation":108.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.33,"best_label":"good","best_window":"22:50\u201304:10","dark_hours":5.29,"date":"2033-07-21","moon_free_dark_hours":3.83,"moon_illumination":21,"moon_separation":114.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"00:00","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.33,"best_label":"good","best_window":"22:50\u201304:10","dark_hours":5.34,"date":"2033-07-22","moon_free_dark_hours":4.72,"moon_illumination":13,"moon_separation":119.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:55","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.33,"best_label":"good","best_window":"22:50\u201304:10","dark_hours":5.39,"date":"2033-07-23","moon_free_dark_hours":5.37,"moon_illumination":6,"moon_separation":122.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.5,"best_label":"good","best_window":"22:45\u201304:15","dark_hours":5.44,"date":"2033-07-24","moon_free_dark_hours":5.42,"moon_illumination":2,"moon_separation":123.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.5,"best_label":"good","best_window":"22:45\u201304:15","dark_hours":5.49,"date":"2033-07-25","moon_free_dark_hours":5.47,"moon_illumination":0,"moon_separation":122.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.5,"best_label":"good","best_window":"22:45\u201304:15","dark_hours":5.54,"date":"2033-07-26","moon_free_dark_hours":5.53,"moon_illumination":0,"moon_separation":119.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.67,"best_label":"good","best_window":"22:40\u201304:20","dark_hours":5.59,"date":"2033-07-27","moon_free_dark_hours":5.58,"moon_illumination":3,"moon_separation":115.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.67,"best_label":"good","best_window":"22:40\u201304:20","dark_hours":5.65,"date":"2033-07-28","moon_free_dark_hours":5.63,"moon_illumination":7,"moon_separation":110.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.67,"best_label":"good","best_window":"22:40\u201304:20","dark_hours":5.7,"date":"2033-07-29","moon_free_dark_hours":5.68,"moon_illumination":12,"moon_separation":104.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.75,"best_label":"good","best_window":"22:40\u201304:25","dark_hours":5.76,"date":"2033-07-30","moon_free_dark_hours":5.73,"moon_illumination":19,"moon_separation":98.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:25","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.83,"best_label":"good","best_window":"22:35\u201304:25","dark_hours":5.81,"date":"2033-07-31","moon_free_dark_hours":5.37,"moon_illumination":27,"moon_separation":91.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:20","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.83,"best_label":"good","best_window":"22:35\u201304:25","dark_hours":5.86,"date":"2033-08-01","moon_free_dark_hours":4.92,"moon_illumination":36,"moon_separation":85.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:15","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":6.0,"best_label":"good","best_window":"22:30\u201304:30","dark_hours":5.92,"date":"2033-08-02","moon_free_dark_hours":4.43,"moon_illumination":45,"moon_separation":79.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":6.0,"best_label":"good","best_window":"22:30\u201304:30","dark_hours":5.98,"date":"2033-08-03","moon_free_dark_hours":3.88,"moon_illumination":55,"moon_separation":72.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":6.0,"best_label":"good","best_window":"22:30\u201304:30","dark_hours":6.03,"date":"2033-08-04","moon_free_dark_hours":3.27,"moon_illumination":64,"moon_separation":67.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"23:05","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":6.08,"best_label":"good","best_window":"22:25\u201304:30","dark_hours":6.09,"date":"2033-08-05","moon_free_dark_hours":2.57,"moon_illumination":74,"moon_separation":62.5,"score":null,"score_astronomy":97,"score_weather":null,"transit_alt":87.1,"transit_local":"23:00","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":6.17,"best_label":"good","best_window":"22:25\u201304:35","dark_hours":6.14,"date":"2033-08-06","moon_free_dark_hours":1.77,"moon_illumination":82,"moon_separation":58.9,"score":null,"score_astronomy":91,"score_weather":null,"transit_alt":87.1,"transit_local":"22:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.75,"best_label":"good","best_window":"23:50\u201304:35","dark_hours":6.2,"date":"2033-08-07","moon_free_dark_hours":0.85,"moon_illumination":90,"moon_separation":56.9,"score":null,"score_astronomy":84,"score_weather":null,"transit_alt":87.1,"transit_local":"22:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":6.25,"best_label":"marginal","best_window":"22:20\u201304:35","dark_hours":6.26,"date":"2033-08-08","moon_free_dark_hours":0.0,"moon_illumination":95,"moon_separation":56.9,"score":null,"score_astronomy":57,"score_weather":null,"transit_alt":87.1,"transit_local":"22:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":6.33,"best_label":"marginal","best_window":"22:20\u201304:40","dark_hours":6.32,"date":"2033-08-09","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":59.2,"score":null,"score_astronomy":54,"score_weather":null,"transit_alt":87.1,"transit_local":"22:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":0.5,"best_label":"good","best_window":"22:20\u201322:50","dark_hours":6.37,"date":"2033-08-10","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":63.5,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"22:40","verdict":"unknown","weather_source":"none","weekday":"Wed"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2033-07-12","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}}