{"calculation_version":"2026-10-10.1","days":30,"nights":[{"best_hours":5.5,"best_label":"good","best_window":"18:45\u201300:15","dark_hours":11.44,"date":"2032-01-02","moon_free_dark_hours":3.17,"moon_illumination":77,"moon_separation":126.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.6,"transit_local":"18:20","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.5,"best_label":"good","best_window":"18:45\u201300:15","dark_hours":11.43,"date":"2032-01-03","moon_free_dark_hours":4.12,"moon_illumination":69,"moon_separation":134.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"18:15","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.5,"best_label":"good","best_window":"18:45\u201300:15","dark_hours":11.42,"date":"2032-01-04","moon_free_dark_hours":5.08,"moon_illumination":60,"moon_separation":142.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"18:10","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":5.5,"best_label":"good","best_window":"18:45\u201300:15","dark_hours":11.41,"date":"2032-01-05","moon_free_dark_hours":6.08,"moon_illumination":50,"moon_separation":147.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"18:05","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":5.42,"best_label":"good","best_window":"18:45\u201300:10","dark_hours":11.39,"date":"2032-01-06","moon_free_dark_hours":7.13,"moon_illumination":40,"moon_separation":148.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.5,"transit_local":"18:00","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":5.25,"best_label":"good","best_window":"18:50\u201300:05","dark_hours":11.38,"date":"2032-01-07","moon_free_dark_hours":8.18,"moon_illumination":30,"moon_separation":144.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.6,"transit_local":"18:00","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":5.25,"best_label":"good","best_window":"18:50\u201300:05","dark_hours":11.36,"date":"2032-01-08","moon_free_dark_hours":9.27,"moon_illumination":20,"moon_separation":137.6,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"17:55","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":5.17,"best_label":"good","best_window":"18:50\u201300:00","dark_hours":11.35,"date":"2032-01-09","moon_free_dark_hours":10.33,"moon_illumination":12,"moon_separation":127.7,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"17:50","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":5.08,"best_label":"good","best_window":"18:50\u201323:55","dark_hours":11.33,"date":"2032-01-10","moon_free_dark_hours":11.32,"moon_illumination":5,"moon_separation":116.2,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.6,"transit_local":"17:45","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":5.0,"best_label":"good","best_window":"18:50\u201323:50","dark_hours":11.31,"date":"2032-01-11","moon_free_dark_hours":11.3,"moon_illumination":1,"moon_separation":103.8,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.5,"transit_local":"17:45","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":4.83,"best_label":"good","best_window":"18:55\u201323:45","dark_hours":11.3,"date":"2032-01-12","moon_free_dark_hours":11.28,"moon_illumination":0,"moon_separation":90.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"17:40","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.83,"best_label":"good","best_window":"18:55\u201323:45","dark_hours":11.28,"date":"2032-01-13","moon_free_dark_hours":11.25,"moon_illumination":2,"moon_separation":77.9,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"17:35","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.75,"best_label":"good","best_window":"18:55\u201323:40","dark_hours":11.26,"date":"2032-01-14","moon_free_dark_hours":10.57,"moon_illumination":7,"moon_separation":65.3,"score":null,"score_astronomy":100,"score_weather":null,"transit_alt":89.7,"transit_local":"17:30","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.67,"best_label":"good","best_window":"18:55\u201323:35","dark_hours":11.23,"date":"2032-01-15","moon_free_dark_hours":9.32,"moon_illumination":14,"moon_separation":53.5,"score":null,"score_astronomy":95,"score_weather":null,"transit_alt":89.6,"transit_local":"17:25","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.58,"best_label":"good","best_window":"18:55\u201323:30","dark_hours":11.21,"date":"2032-01-16","moon_free_dark_hours":8.12,"moon_illumination":23,"moon_separation":43.3,"score":null,"score_astronomy":89,"score_weather":null,"transit_alt":89.6,"transit_local":"17:25","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":4.5,"best_label":"good","best_window":"19:00\u201323:30","dark_hours":11.19,"date":"2032-01-17","moon_free_dark_hours":6.95,"moon_illumination":33,"moon_separation":35.5,"score":null,"score_astronomy":79,"score_weather":null,"transit_alt":89.7,"transit_local":"17:20","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":4.0,"best_label":"good","best_window":"19:00\u201323:00","dark_hours":11.17,"date":"2032-01-18","moon_free_dark_hours":5.82,"moon_illumination":44,"moon_separation":31.8,"score":null,"score_astronomy":59,"score_weather":null,"transit_alt":89.7,"transit_local":"17:15","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":1.42,"best_label":"good","best_window":"19:00\u201320:25","dark_hours":11.14,"date":"2032-01-19","moon_free_dark_hours":4.73,"moon_illumination":55,"moon_separation":33.0,"score":null,"score_astronomy":45,"score_weather":null,"transit_alt":89.7,"transit_local":"17:10","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":4.67,"best_label":"marginal","best_window":"19:00\u201323:40","dark_hours":11.12,"date":"2032-01-20","moon_free_dark_hours":3.7,"moon_illumination":65,"moon_separation":38.2,"score":null,"score_astronomy":35,"score_weather":null,"transit_alt":89.5,"transit_local":"17:05","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":4.42,"best_label":"marginal","best_window":"19:00\u201323:25","dark_hours":11.09,"date":"2032-01-21","moon_free_dark_hours":2.72,"moon_illumination":74,"moon_separation":45.8,"score":null,"score_astronomy":30,"score_weather":null,"transit_alt":89.6,"transit_local":"17:05","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":4.17,"best_label":"marginal","best_window":"19:05\u201323:15","dark_hours":11.07,"date":"2032-01-22","moon_free_dark_hours":1.82,"moon_illumination":82,"moon_separation":54.8,"score":null,"score_astronomy":29,"score_weather":null,"transit_alt":89.7,"transit_local":"17:00","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":4.08,"best_label":"marginal","best_window":"19:05\u201323:10","dark_hours":11.04,"date":"2032-01-23","moon_free_dark_hours":0.98,"moon_illumination":89,"moon_separation":64.4,"score":null,"score_astronomy":32,"score_weather":null,"transit_alt":89.7,"transit_local":"16:55","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":0.58,"best_label":"good","best_window":"19:05\u201319:40","dark_hours":11.01,"date":"2032-01-24","moon_free_dark_hours":0.25,"moon_illumination":94,"moon_separation":74.3,"score":null,"score_astronomy":37,"score_weather":null,"transit_alt":89.6,"transit_local":"16:50","verdict":"unknown","weather_source":"none","weekday":"Sat"},{"best_hours":1.5,"best_label":"good","best_window":"19:05\u201320:35","dark_hours":10.99,"date":"2032-01-25","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":84.4,"score":null,"score_astronomy":45,"score_weather":null,"transit_alt":89.5,"transit_local":"16:50","verdict":"unknown","weather_source":"none","weekday":"Sun"},{"best_hours":2.42,"best_label":"good","best_window":"19:05\u201321:30","dark_hours":10.96,"date":"2032-01-26","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":94.5,"score":null,"score_astronomy":54,"score_weather":null,"transit_alt":89.7,"transit_local":"16:45","verdict":"unknown","weather_source":"none","weekday":"Mon"},{"best_hours":3.17,"best_label":"good","best_window":"19:10\u201322:20","dark_hours":10.93,"date":"2032-01-27","moon_free_dark_hours":0.0,"moon_illumination":100,"moon_separation":104.5,"score":null,"score_astronomy":64,"score_weather":null,"transit_alt":89.7,"transit_local":"16:40","verdict":"unknown","weather_source":"none","weekday":"Tue"},{"best_hours":3.25,"best_label":"good","best_window":"19:10\u201322:25","dark_hours":10.9,"date":"2032-01-28","moon_free_dark_hours":0.0,"moon_illumination":98,"moon_separation":114.3,"score":null,"score_astronomy":74,"score_weather":null,"transit_alt":89.7,"transit_local":"16:35","verdict":"unknown","weather_source":"none","weekday":"Wed"},{"best_hours":3.33,"best_label":"good","best_window":"19:10\u201322:30","dark_hours":10.87,"date":"2032-01-29","moon_free_dark_hours":0.62,"moon_illumination":95,"moon_separation":123.8,"score":null,"score_astronomy":85,"score_weather":null,"transit_alt":89.6,"transit_local":"16:30","verdict":"unknown","weather_source":"none","weekday":"Thu"},{"best_hours":3.25,"best_label":"good","best_window":"19:10\u201322:25","dark_hours":10.84,"date":"2032-01-30","moon_free_dark_hours":1.55,"moon_illumination":90,"moon_separation":132.6,"score":null,"score_astronomy":86,"score_weather":null,"transit_alt":89.5,"transit_local":"16:30","verdict":"unknown","weather_source":"none","weekday":"Fri"},{"best_hours":3.17,"best_label":"good","best_window":"19:15\u201322:25","dark_hours":10.8,"date":"2032-01-31","moon_free_dark_hours":2.5,"moon_illumination":83,"moon_separation":140.3,"score":null,"score_astronomy":85,"score_weather":null,"transit_alt":89.7,"transit_local":"16:25","verdict":"unknown","weather_source":"none","weekday":"Sat"}],"note":"score_astronomy for every night; score_weather/score only where a forecast (next 4 days) or ERA5 history exists \u2014 null otherwise","start":"2032-01-02","target":{"common_name":"Andromeda Galaxy","dec":41.26875,"morphology":"SA(s)b","name":"M 31","ra":10.68470833,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M31","source":"sesame","type":"AGN","type_text":"galaxy with an active nucleus","vmag":3.44}}