{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":2.17,"best_label":"good","best_window":"18:45\u201320:55","dark_hours":10.71,"date":"2038-11-07","moon_free_dark_hours":2.18,"moon_illumination":86,"moon_separation":88.2,"score":null,"score_astronomy":44,"score_weather":null,"transit_alt":87.1,"transit_local":"15:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.17,"best_label":"good","best_window":"18:45\u201320:55","dark_hours":10.75,"date":"2038-11-08","moon_free_dark_hours":1.22,"moon_illumination":92,"moon_separation":93.7,"score":null,"score_astronomy":44,"score_weather":null,"transit_alt":87.1,"transit_local":"15:50","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.33,"best_label":"good","best_window":"18:45\u201321:05","dark_hours":10.78,"date":"2038-11-09","moon_free_dark_hours":0.25,"moon_illumination":96,"moon_separation":99.1,"score":null,"score_astronomy":46,"score_weather":null,"transit_alt":87.1,"transit_local":"15:45","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.42,"best_label":"good","best_window":"18:45\u201321:10","dark_hours":10.81,"date":"2038-11-10","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":104.1,"score":null,"score_astronomy":48,"score_weather":null,"transit_alt":87.1,"transit_local":"15:40","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.42,"best_label":"good","best_window":"18:45\u201321:10","dark_hours":10.84,"date":"2038-11-11","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":108.6,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.1,"transit_local":"15:35","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":10.87,"date":"2038-11-12","moon_free_dark_hours":0.0,"moon_illumination":99,"moon_separation":112.4,"score":null,"score_astronomy":55,"score_weather":null,"transit_alt":87.1,"transit_local":"15:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":10.9,"date":"2038-11-13","moon_free_dark_hours":0.0,"moon_illumination":96,"moon_separation":115.2,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.1,"transit_local":"15:30","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":10.93,"date":"2038-11-14","moon_free_dark_hours":0.25,"moon_illumination":92,"moon_separation":117.0,"score":null,"score_astronomy":64,"score_weather":null,"transit_alt":87.1,"transit_local":"15:25","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":10.96,"date":"2038-11-15","moon_free_dark_hours":0.98,"moon_illumination":86,"moon_separation":117.5,"score":null,"score_astronomy":64,"score_weather":null,"transit_alt":87.1,"transit_local":"15:20","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":10.99,"date":"2038-11-16","moon_free_dark_hours":1.85,"moon_illumination":79,"moon_separation":116.6,"score":null,"score_astronomy":64,"score_weather":null,"transit_alt":87.1,"transit_local":"15:15","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":11.02,"date":"2038-11-17","moon_free_dark_hours":2.83,"moon_illumination":70,"moon_separation":114.4,"score":null,"score_astronomy":64,"score_weather":null,"transit_alt":87.1,"transit_local":"15:10","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.5,"best_label":"good","best_window":"18:40\u201321:10","dark_hours":11.04,"date":"2038-11-18","moon_free_dark_hours":3.87,"moon_illumination":60,"moon_separation":111.0,"score":null,"score_astronomy":63,"score_weather":null,"transit_alt":87.1,"transit_local":"15:10","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.5,"best_label":"good","best_window":"18:35\u201321:05","dark_hours":11.07,"date":"2038-11-19","moon_free_dark_hours":4.98,"moon_illumination":50,"moon_separation":106.4,"score":null,"score_astronomy":62,"score_weather":null,"transit_alt":87.1,"transit_local":"15:05","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":2.42,"best_label":"good","best_window":"18:35\u201321:00","dark_hours":11.1,"date":"2038-11-20","moon_free_dark_hours":6.13,"moon_illumination":39,"moon_separation":101.0,"score":null,"score_astronomy":60,"score_weather":null,"transit_alt":87.1,"transit_local":"15:00","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":2.33,"best_label":"good","best_window":"18:35\u201320:55","dark_hours":11.12,"date":"2038-11-21","moon_free_dark_hours":7.32,"moon_illumination":29,"moon_separation":94.8,"score":null,"score_astronomy":59,"score_weather":null,"transit_alt":87.1,"transit_local":"14:55","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.25,"best_label":"good","best_window":"18:35\u201320:50","dark_hours":11.15,"date":"2038-11-22","moon_free_dark_hours":8.53,"moon_illumination":19,"moon_separation":88.2,"score":null,"score_astronomy":58,"score_weather":null,"transit_alt":87.1,"transit_local":"14:55","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":2.25,"best_label":"good","best_window":"18:35\u201320:50","dark_hours":11.17,"date":"2038-11-23","moon_free_dark_hours":9.8,"moon_illumination":10,"moon_separation":81.6,"score":null,"score_astronomy":56,"score_weather":null,"transit_alt":87.1,"transit_local":"14:50","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":2.17,"best_label":"good","best_window":"18:35\u201320:45","dark_hours":11.19,"date":"2038-11-24","moon_free_dark_hours":11.1,"moon_illumination":4,"moon_separation":75.2,"score":null,"score_astronomy":54,"score_weather":null,"transit_alt":87.1,"transit_local":"14:45","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":2.08,"best_label":"good","best_window":"18:35\u201320:40","dark_hours":11.21,"date":"2038-11-25","moon_free_dark_hours":11.2,"moon_illumination":1,"moon_separation":69.7,"score":null,"score_astronomy":52,"score_weather":null,"transit_alt":87.1,"transit_local":"14:40","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":2.0,"best_label":"good","best_window":"18:35\u201320:35","dark_hours":11.24,"date":"2038-11-26","moon_free_dark_hours":11.22,"moon_illumination":0,"moon_separation":65.5,"score":null,"score_astronomy":51,"score_weather":null,"transit_alt":87.1,"transit_local":"14:35","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.92,"best_label":"good","best_window":"18:35\u201320:30","dark_hours":11.26,"date":"2038-11-27","moon_free_dark_hours":11.23,"moon_illumination":3,"moon_separation":63.1,"score":null,"score_astronomy":50,"score_weather":null,"transit_alt":87.1,"transit_local":"14:35","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.92,"best_label":"good","best_window":"18:35\u201320:30","dark_hours":11.28,"date":"2038-11-28","moon_free_dark_hours":11.15,"moon_illumination":8,"moon_separation":62.6,"score":null,"score_astronomy":47,"score_weather":null,"transit_alt":87.1,"transit_local":"14:30","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.83,"best_label":"good","best_window":"18:35\u201320:25","dark_hours":11.3,"date":"2038-11-29","moon_free_dark_hours":10.13,"moon_illumination":15,"moon_separation":64.0,"score":null,"score_astronomy":42,"score_weather":null,"transit_alt":87.1,"transit_local":"14:25","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":1.67,"best_label":"good","best_window":"18:35\u201320:15","dark_hours":11.31,"date":"2038-11-30","moon_free_dark_hours":9.03,"moon_illumination":24,"moon_separation":67.0,"score":null,"score_astronomy":37,"score_weather":null,"transit_alt":87.1,"transit_local":"14:20","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":1.5,"best_label":"good","best_window":"18:35\u201320:05","dark_hours":11.33,"date":"2038-12-01","moon_free_dark_hours":7.92,"moon_illumination":34,"moon_separation":71.1,"score":null,"score_astronomy":34,"score_weather":null,"transit_alt":87.1,"transit_local":"14:15","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":1.33,"best_label":"good","best_window":"18:35\u201319:55","dark_hours":11.35,"date":"2038-12-02","moon_free_dark_hours":6.83,"moon_illumination":44,"moon_separation":76.0,"score":null,"score_astronomy":30,"score_weather":null,"transit_alt":87.1,"transit_local":"14:15","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":1.25,"best_label":"good","best_window":"18:35\u201319:50","dark_hours":11.37,"date":"2038-12-03","moon_free_dark_hours":5.78,"moon_illumination":54,"moon_separation":81.3,"score":null,"score_astronomy":27,"score_weather":null,"transit_alt":87.1,"transit_local":"14:10","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":1.08,"best_label":"good","best_window":"18:35\u201319:40","dark_hours":11.38,"date":"2038-12-04","moon_free_dark_hours":4.75,"moon_illumination":64,"moon_separation":86.9,"score":null,"score_astronomy":24,"score_weather":null,"transit_alt":87.1,"transit_local":"14:05","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.0,"best_label":"good","best_window":"18:35\u201319:35","dark_hours":11.39,"date":"2038-12-05","moon_free_dark_hours":3.77,"moon_illumination":72,"moon_separation":92.4,"score":null,"score_astronomy":23,"score_weather":null,"transit_alt":87.1,"transit_local":"14:00","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":0.92,"best_label":"good","best_window":"18:35\u201319:30","dark_hours":11.41,"date":"2038-12-06","moon_free_dark_hours":2.8,"moon_illumination":80,"moon_separation":97.8,"score":null,"score_astronomy":22,"score_weather":null,"transit_alt":87.1,"transit_local":"14:00","verdict":"unknown","weather_source":"none","weekday":"Mon"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2038-11-07","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}}