{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":5.5,"best_label":"good","best_window":"22:35\u201304:05","dark_hours":5.57,"date":"2034-05-15","moon_free_dark_hours":5.55,"moon_illumination":7,"moon_separation":95.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.5,"best_label":"good","best_window":"22:35\u201304:05","dark_hours":5.52,"date":"2034-05-16","moon_free_dark_hours":5.5,"moon_illumination":2,"moon_separation":103.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.5,"best_label":"good","best_window":"22:35\u201304:05","dark_hours":5.47,"date":"2034-05-17","moon_free_dark_hours":5.45,"moon_illumination":0,"moon_separation":111.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.42,"best_label":"good","best_window":"22:35\u201304:00","dark_hours":5.42,"date":"2034-05-18","moon_free_dark_hours":5.4,"moon_illumination":1,"moon_separation":117.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.33,"best_label":"good","best_window":"22:40\u201304:00","dark_hours":5.37,"date":"2034-05-19","moon_free_dark_hours":5.35,"moon_illumination":5,"moon_separation":121.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.33,"best_label":"good","best_window":"22:40\u201304:00","dark_hours":5.32,"date":"2034-05-20","moon_free_dark_hours":4.92,"moon_illumination":11,"moon_separation":123.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.33,"best_label":"good","best_window":"22:40\u201304:00","dark_hours":5.27,"date":"2034-05-21","moon_free_dark_hours":4.03,"moon_illumination":20,"moon_separation":122.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"04:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.17,"best_label":"good","best_window":"22:45\u201303:55","dark_hours":5.22,"date":"2034-05-22","moon_free_dark_hours":3.27,"moon_illumination":29,"moon_separation":120.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"03:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.17,"best_label":"good","best_window":"22:45\u201303:55","dark_hours":5.17,"date":"2034-05-23","moon_free_dark_hours":2.58,"moon_illumination":39,"moon_separation":116.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"03:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.17,"best_label":"good","best_window":"22:45\u201303:55","dark_hours":5.13,"date":"2034-05-24","moon_free_dark_hours":1.98,"moon_illumination":49,"moon_separation":110.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"03:50","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.08,"best_label":"good","best_window":"22:50\u201303:55","dark_hours":5.08,"date":"2034-05-25","moon_free_dark_hours":1.45,"moon_illumination":59,"moon_separation":104.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"03:45","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.0,"best_label":"good","best_window":"22:50\u201303:50","dark_hours":5.04,"date":"2034-05-26","moon_free_dark_hours":0.93,"moon_illumination":69,"moon_separation":98.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"03:40","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.0,"best_label":"good","best_window":"22:50\u201303:50","dark_hours":4.99,"date":"2034-05-27","moon_free_dark_hours":0.43,"moon_illumination":77,"moon_separation":92.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"03:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.0,"best_label":"good","best_window":"22:50\u201303:50","dark_hours":4.95,"date":"2034-05-28","moon_free_dark_hours":0.0,"moon_illumination":85,"moon_separation":85.5,"score":null,"score_astronomy":83,"score_weather":null,"transit_alt":87.1,"transit_local":"03:35","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.42,"best_label":"good","best_window":"23:25\u201303:50","dark_hours":4.91,"date":"2034-05-29","moon_free_dark_hours":0.0,"moon_illumination":91,"moon_separation":79.2,"score":null,"score_astronomy":77,"score_weather":null,"transit_alt":87.1,"transit_local":"03:30","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.58,"best_label":"good","best_window":"00:10\u201303:45","dark_hours":4.87,"date":"2034-05-30","moon_free_dark_hours":0.0,"moon_illumination":95,"moon_separation":73.2,"score":null,"score_astronomy":67,"score_weather":null,"transit_alt":87.1,"transit_local":"03:25","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.92,"best_label":"good","best_window":"00:50\u201303:45","dark_hours":4.83,"date":"2034-05-31","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":67.8,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"03:20","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":0.58,"best_label":"good","best_window":"03:10\u201303:45","dark_hours":4.79,"date":"2034-06-01","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":63.1,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.1,"transit_local":"03:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.75,"best_label":"marginal","best_window":"23:00\u201303:45","dark_hours":4.76,"date":"2034-06-02","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":59.6,"score":null,"score_astronomy":48,"score_weather":null,"transit_alt":87.1,"transit_local":"03:15","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.75,"best_label":"marginal","best_window":"23:00\u201303:45","dark_hours":4.72,"date":"2034-06-03","moon_free_dark_hours":0.0,"moon_illumination":97,"moon_separation":57.4,"score":null,"score_astronomy":50,"score_weather":null,"transit_alt":87.1,"transit_local":"03:10","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.83,"best_label":"good","best_window":"23:00\u201301:50","dark_hours":4.69,"date":"2034-06-04","moon_free_dark_hours":0.0,"moon_illumination":93,"moon_separation":56.9,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"03:05","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.67,"best_label":"good","best_window":"23:00\u201303:40","dark_hours":4.66,"date":"2034-06-05","moon_free_dark_hours":0.38,"moon_illumination":87,"moon_separation":58.1,"score":null,"score_astronomy":91,"score_weather":null,"transit_alt":87.1,"transit_local":"03:00","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.58,"best_label":"good","best_window":"23:05\u201303:40","dark_hours":4.63,"date":"2034-06-06","moon_free_dark_hours":1.03,"moon_illumination":79,"moon_separation":61.0,"score":null,"score_astronomy":98,"score_weather":null,"transit_alt":87.1,"transit_local":"02:55","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.58,"best_label":"good","best_window":"23:05\u201303:40","dark_hours":4.61,"date":"2034-06-07","moon_free_dark_hours":1.63,"moon_illumination":70,"moon_separation":65.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:55","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.58,"best_label":"good","best_window":"23:05\u201303:40","dark_hours":4.58,"date":"2034-06-08","moon_free_dark_hours":2.18,"moon_illumination":60,"moon_separation":71.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:50","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.58,"best_label":"good","best_window":"23:05\u201303:40","dark_hours":4.56,"date":"2034-06-09","moon_free_dark_hours":2.73,"moon_illumination":49,"moon_separation":77.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:45","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.58,"best_label":"good","best_window":"23:05\u201303:40","dark_hours":4.53,"date":"2034-06-10","moon_free_dark_hours":3.28,"moon_illumination":38,"moon_separation":85.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:40","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.5,"best_label":"good","best_window":"23:10\u201303:40","dark_hours":4.51,"date":"2034-06-11","moon_free_dark_hours":3.87,"moon_illumination":27,"moon_separation":93.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:40","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.5,"best_label":"good","best_window":"23:10\u201303:40","dark_hours":4.5,"date":"2034-06-12","moon_free_dark_hours":4.47,"moon_illumination":17,"moon_separation":100.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:35","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.5,"best_label":"good","best_window":"23:10\u201303:40","dark_hours":4.48,"date":"2034-06-13","moon_free_dark_hours":4.47,"moon_illumination":9,"moon_separation":108.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"02:30","verdict":"unknown","weather_source":"none","weekday":"Tue"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2034-05-15","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}}