{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":4.67,"best_label":"good","best_window":"20:40\u201301:20","dark_hours":9.11,"date":"2044-09-29","moon_free_dark_hours":5.77,"moon_illumination":57,"moon_separation":66.0,"score":null,"score_astronomy":86,"score_weather":null,"transit_alt":87.1,"transit_local":"19:25","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.33,"best_label":"good","best_window":"20:40\u201301:00","dark_hours":9.16,"date":"2044-09-30","moon_free_dark_hours":4.73,"moon_illumination":66,"moon_separation":66.0,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.1,"transit_local":"19:20","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.17,"best_label":"good","best_window":"20:35\u201300:45","dark_hours":9.21,"date":"2044-10-01","moon_free_dark_hours":3.67,"moon_illumination":75,"moon_separation":67.1,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":87.1,"transit_local":"19:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.92,"best_label":"good","best_window":"20:35\u201323:30","dark_hours":9.26,"date":"2044-10-02","moon_free_dark_hours":2.6,"moon_illumination":83,"moon_separation":69.3,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.1,"transit_local":"19:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.17,"best_label":"good","best_window":"20:35\u201322:45","dark_hours":9.31,"date":"2044-10-03","moon_free_dark_hours":1.52,"moon_illumination":90,"moon_separation":72.4,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":87.1,"transit_local":"19:05","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.92,"best_label":"good","best_window":"20:30\u201322:25","dark_hours":9.35,"date":"2044-10-04","moon_free_dark_hours":0.43,"moon_illumination":95,"moon_separation":76.5,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.1,"transit_local":"19:05","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.0,"best_label":"good","best_window":"20:30\u201322:30","dark_hours":9.4,"date":"2044-10-05","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":81.2,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":87.1,"transit_local":"19:00","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.33,"best_label":"good","best_window":"20:30\u201322:50","dark_hours":9.45,"date":"2044-10-06","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":86.5,"score":null,"score_astronomy":57,"score_weather":null,"transit_alt":87.1,"transit_local":"18:55","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.92,"best_label":"good","best_window":"20:25\u201323:20","dark_hours":9.49,"date":"2044-10-07","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":92.1,"score":null,"score_astronomy":64,"score_weather":null,"transit_alt":87.1,"transit_local":"18:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.58,"best_label":"good","best_window":"20:25\u201300:00","dark_hours":9.54,"date":"2044-10-08","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":97.6,"score":null,"score_astronomy":71,"score_weather":null,"transit_alt":87.1,"transit_local":"18:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.92,"best_label":"good","best_window":"20:25\u201300:20","dark_hours":9.58,"date":"2044-10-09","moon_free_dark_hours":0.0,"moon_illumination":90,"moon_separation":102.8,"score":null,"score_astronomy":80,"score_weather":null,"transit_alt":87.1,"transit_local":"18:45","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.0,"best_label":"good","best_window":"20:20\u201300:20","dark_hours":9.63,"date":"2044-10-10","moon_free_dark_hours":0.27,"moon_illumination":82,"moon_separation":107.4,"score":null,"score_astronomy":99,"score_weather":null,"transit_alt":87.1,"transit_local":"18:40","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.08,"best_label":"good","best_window":"20:20\u201300:25","dark_hours":9.67,"date":"2044-10-11","moon_free_dark_hours":1.17,"moon_illumination":72,"moon_separation":111.0,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.08,"best_label":"good","best_window":"20:20\u201300:25","dark_hours":9.72,"date":"2044-10-12","moon_free_dark_hours":2.25,"moon_illumination":61,"moon_separation":113.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:30","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.08,"best_label":"good","best_window":"20:15\u201300:20","dark_hours":9.76,"date":"2044-10-13","moon_free_dark_hours":3.5,"moon_illumination":50,"moon_separation":114.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.17,"best_label":"good","best_window":"20:15\u201300:25","dark_hours":9.81,"date":"2044-10-14","moon_free_dark_hours":4.82,"moon_illumination":39,"moon_separation":113.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.08,"best_label":"good","best_window":"20:15\u201300:20","dark_hours":9.85,"date":"2044-10-15","moon_free_dark_hours":6.1,"moon_illumination":28,"moon_separation":111.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.08,"best_label":"good","best_window":"20:10\u201300:15","dark_hours":9.89,"date":"2044-10-16","moon_free_dark_hours":7.37,"moon_illumination":18,"moon_separation":107.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.0,"best_label":"good","best_window":"20:10\u201300:10","dark_hours":9.93,"date":"2044-10-17","moon_free_dark_hours":8.58,"moon_illumination":11,"moon_separation":103.5,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.0,"best_label":"good","best_window":"20:10\u201300:10","dark_hours":9.98,"date":"2044-10-18","moon_free_dark_hours":9.78,"moon_illumination":5,"moon_separation":98.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:10","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.92,"best_label":"good","best_window":"20:10\u201300:05","dark_hours":10.02,"date":"2044-10-19","moon_free_dark_hours":10.0,"moon_illumination":1,"moon_separation":93.1,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.92,"best_label":"good","best_window":"20:05\u201300:00","dark_hours":10.06,"date":"2044-10-20","moon_free_dark_hours":10.03,"moon_illumination":0,"moon_separation":87.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"18:00","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":3.83,"best_label":"good","best_window":"20:05\u201323:55","dark_hours":10.1,"date":"2044-10-21","moon_free_dark_hours":10.08,"moon_illumination":1,"moon_separation":82.4,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"17:55","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.75,"best_label":"good","best_window":"20:05\u201323:50","dark_hours":10.14,"date":"2044-10-22","moon_free_dark_hours":10.12,"moon_illumination":4,"moon_separation":77.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":87.1,"transit_local":"17:55","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":3.75,"best_label":"good","best_window":"20:05\u201323:50","dark_hours":10.18,"date":"2044-10-23","moon_free_dark_hours":10.15,"moon_illumination":9,"moon_separation":73.4,"score":null,"score_astronomy":98,"score_weather":null,"transit_alt":87.1,"transit_local":"17:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":3.75,"best_label":"good","best_window":"20:00\u201323:45","dark_hours":10.22,"date":"2044-10-24","moon_free_dark_hours":10.18,"moon_illumination":15,"moon_separation":70.0,"score":null,"score_astronomy":97,"score_weather":null,"transit_alt":87.1,"transit_local":"17:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.67,"best_label":"good","best_window":"20:00\u201323:40","dark_hours":10.26,"date":"2044-10-25","moon_free_dark_hours":9.37,"moon_illumination":23,"moon_separation":67.6,"score":null,"score_astronomy":89,"score_weather":null,"transit_alt":87.1,"transit_local":"17:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.58,"best_label":"good","best_window":"20:00\u201323:35","dark_hours":10.3,"date":"2044-10-26","moon_free_dark_hours":8.45,"moon_illumination":31,"moon_separation":66.1,"score":null,"score_astronomy":81,"score_weather":null,"transit_alt":87.1,"transit_local":"17:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.58,"best_label":"good","best_window":"19:55\u201323:30","dark_hours":10.34,"date":"2044-10-27","moon_free_dark_hours":7.45,"moon_illumination":40,"moon_separation":65.7,"score":null,"score_astronomy":72,"score_weather":null,"transit_alt":87.1,"transit_local":"17:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":3.25,"best_label":"good","best_window":"19:55\u201323:10","dark_hours":10.38,"date":"2044-10-28","moon_free_dark_hours":6.4,"moon_illumination":49,"moon_separation":66.4,"score":null,"score_astronomy":63,"score_weather":null,"transit_alt":87.1,"transit_local":"17:30","verdict":"unknown","weather_source":"none","weekday":"Fri"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2044-09-29","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}}
