{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2026-12-24","schedule":[{"end":"2026-12-24T16:05Z","end_local":"18:05","hours":1.17,"mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55","target":null},{"end":"2026-12-24T17:20Z","end_local":"19:20","hours":1.25,"mean_quality":0.61,"start":"2026-12-24T16:05Z","start_local":"18:05","target":"V1057 Cyg"},{"end":"2026-12-24T18:35Z","end_local":"20:35","hours":1.25,"mean_quality":0.7,"start":"2026-12-24T17:20Z","start_local":"19:20","target":"NGC 7000"},{"end":"2026-12-24T19:50Z","end_local":"21:50","hours":1.25,"mean_quality":0.63,"start":"2026-12-24T18:35Z","start_local":"20:35","target":"M31"},{"end":"2026-12-24T21:05Z","end_local":"23:05","hours":1.25,"mean_quality":0.54,"start":"2026-12-24T19:50Z","start_local":"21:50","target":"M33"},{"end":"2026-12-24T22:20Z","end_local":"00:20","hours":1.25,"mean_quality":0.35,"start":"2026-12-24T21:05Z","start_local":"23:05","target":"M45"},{"end":"2026-12-24T23:10Z","end_local":"01:10","hours":0.83,"mean_quality":0.39,"start":"2026-12-24T22:20Z","start_local":"00:20","target":"M31"},{"end":"2026-12-24T23:20Z","end_local":"01:20","hours":0.17,"mean_quality":0.31,"start":"2026-12-24T23:10Z","start_local":"01:10","target":"M33"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":6.5,"mean_quality":0.0,"start":"2026-12-24T23:20Z","start_local":"01:20","target":null}],"targets":[{"best_window":{"end":"2026-12-24T19:50Z","end_local":"21:50","hours":3.17,"label":"good","mean_quality":0.67,"start":"2026-12-24T16:40Z","start_local":"18:40"},"dec":41.26875,"moon_separation":78.0,"name":"M31","quality_hours":4.13,"ra":10.68470833,"resolved":{"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},"score":null,"score_astronomy":72,"score_weather":null,"transit":{"airmass":1.0,"alt":89.5,"az":122.0,"t":"2026-12-24T16:50Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-24T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55"},{"end":"2026-12-24T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.11,"start":"2026-12-24T15:30Z","start_local":"17:30"},{"end":"2026-12-24T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.37,"start":"2026-12-24T16:05Z","start_local":"18:05"},{"end":"2026-12-24T19:50Z","end_local":"21:50","hours":3.17,"label":"good","mean_quality":0.67,"start":"2026-12-24T16:40Z","start_local":"18:40"},{"end":"2026-12-24T23:10Z","end_local":"01:10","hours":3.33,"label":"marginal","mean_quality":0.49,"start":"2026-12-24T19:50Z","start_local":"21:50"},{"end":"2026-12-24T23:35Z","end_local":"01:35","hours":0.42,"label":"poor","mean_quality":0.26,"start":"2026-12-24T23:10Z","start_local":"01:10"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":6.25,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T23:35Z","start_local":"01:35"}]},{"best_window":{"end":"2026-12-24T20:25Z","end_local":"22:25","hours":1.67,"label":"marginal","mean_quality":0.32,"start":"2026-12-24T18:45Z","start_local":"20:45"},"dec":-5.3876,"moon_separation":38.4,"name":"M42","quality_hours":1.97,"ra":83.8201,"resolved":{"common_name":"Great Orion Nebula","dec":-5.3876,"name":"M 42","ra":83.8201,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M42","source":"sesame","type":"HII","type_text":"HII region \u2014 a star-forming nebula"},"score":null,"score_astronomy":16,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.4,"t":"2026-12-24T21:45Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-24T18:00Z","end_local":"20:00","hours":3.08,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55"},{"end":"2026-12-24T18:45Z","end_local":"20:45","hours":0.75,"label":"poor","mean_quality":0.25,"start":"2026-12-24T18:00Z","start_local":"20:00"},{"end":"2026-12-24T20:25Z","end_local":"22:25","hours":1.67,"label":"marginal","mean_quality":0.32,"start":"2026-12-24T18:45Z","start_local":"20:45"},{"end":"2026-12-25T01:35Z","end_local":"03:35","hours":5.17,"label":"poor","mean_quality":0.24,"start":"2026-12-24T20:25Z","start_local":"22:25"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":4.25,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T01:35Z","start_local":"03:35"}]},{"best_window":{"end":"2026-12-24T23:20Z","end_local":"01:20","hours":6.67,"label":"marginal","mean_quality":0.42,"start":"2026-12-24T16:40Z","start_local":"18:40"},"dec":24.11388889,"moon_separation":45.7,"name":"M45","quality_hours":3.58,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":null,"score_astronomy":48,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":179.5,"t":"2026-12-24T19:55Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-24T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55"},{"end":"2026-12-24T16:40Z","end_local":"18:40","hours":1.17,"label":"poor","mean_quality":0.17,"start":"2026-12-24T15:30Z","start_local":"17:30"},{"end":"2026-12-24T23:20Z","end_local":"01:20","hours":6.67,"label":"marginal","mean_quality":0.42,"start":"2026-12-24T16:40Z","start_local":"18:40"},{"end":"2026-12-25T01:35Z","end_local":"03:35","hours":2.25,"label":"poor","mean_quality":0.26,"start":"2026-12-24T23:20Z","start_local":"01:20"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":4.25,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T01:35Z","start_local":"03:35"}]},{"best_window":{"end":"2026-12-24T19:00Z","end_local":"21:00","hours":2.33,"label":"good","mean_quality":0.71,"start":"2026-12-24T16:40Z","start_local":"18:40"},"dec":44.33,"moon_separation":105.7,"name":"NGC 7000","quality_hours":2.47,"ra":314.69583333,"resolved":{"common_name":"North America Nebula","dec":44.33,"name":"NGC 7000","ra":314.69583333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC%207000","source":"sesame","type":"Cl*","type_text":"star cluster"},"score":null,"score_astronomy":49,"score_weather":null,"transit":{"airmass":1.0,"alt":87.2,"az":354.4,"t":"2026-12-24T13:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-24T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55"},{"end":"2026-12-24T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.13,"start":"2026-12-24T15:30Z","start_local":"17:30"},{"end":"2026-12-24T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.41,"start":"2026-12-24T16:05Z","start_local":"18:05"},{"end":"2026-12-24T19:00Z","end_local":"21:00","hours":2.33,"label":"good","mean_quality":0.71,"start":"2026-12-24T16:40Z","start_local":"18:40"},{"end":"2026-12-24T20:05Z","end_local":"22:05","hours":1.08,"label":"marginal","mean_quality":0.45,"start":"2026-12-24T19:00Z","start_local":"21:00"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":9.75,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T20:05Z","start_local":"22:05"}]},{"best_window":{"end":"2026-12-24T19:00Z","end_local":"21:00","hours":2.33,"label":"good","mean_quality":0.71,"start":"2026-12-24T16:40Z","start_local":"18:40"},"dec":44.25788576,"moon_separation":105.8,"name":"V1057 Cyg","quality_hours":2.47,"ra":314.72388973,"resolved":{"dec":44.25788576,"name":"EM* LkHA 190","ra":314.72388973,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V1057%20Cyg","source":"sesame","spectral_type":"F7/G3I/IIe","type":"Or*","type_text":"Orion-type variable \u2014 a young, erupting star","vmag":12.33},"score":null,"score_astronomy":49,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":354.6,"t":"2026-12-24T13:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-24T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55"},{"end":"2026-12-24T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.13,"start":"2026-12-24T15:30Z","start_local":"17:30"},{"end":"2026-12-24T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.41,"start":"2026-12-24T16:05Z","start_local":"18:05"},{"end":"2026-12-24T19:00Z","end_local":"21:00","hours":2.33,"label":"good","mean_quality":0.71,"start":"2026-12-24T16:40Z","start_local":"18:40"},{"end":"2026-12-24T20:05Z","end_local":"22:05","hours":1.08,"label":"marginal","mean_quality":0.45,"start":"2026-12-24T19:00Z","start_local":"21:00"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":9.75,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T20:05Z","start_local":"22:05"}]},{"best_window":{"end":"2026-12-24T19:10Z","end_local":"21:10","hours":2.5,"label":"good","mean_quality":0.65,"start":"2026-12-24T16:40Z","start_local":"18:40"},"dec":30.66017511,"moon_separation":72.3,"name":"M33","quality_hours":4.05,"ra":23.46206906,"resolved":{"common_name":"Triangulum Pinwheel","dec":30.66017511,"morphology":"SA(s)cd","name":"M 33","ra":23.46206906,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M33","source":"sesame","type":"GiG","type_text":"galaxy in a group","vmag":5.72},"score":null,"score_astronomy":70,"score_weather":null,"transit":{"airmass":1.02,"alt":79.1,"az":181.9,"t":"2026-12-24T17:45Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-24T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T14:55Z","start_local":"16:55"},{"end":"2026-12-24T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.11,"start":"2026-12-24T15:30Z","start_local":"17:30"},{"end":"2026-12-24T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.36,"start":"2026-12-24T16:05Z","start_local":"18:05"},{"end":"2026-12-24T19:10Z","end_local":"21:10","hours":2.5,"label":"good","mean_quality":0.65,"start":"2026-12-24T16:40Z","start_local":"18:40"},{"end":"2026-12-24T23:20Z","end_local":"01:20","hours":4.17,"label":"marginal","mean_quality":0.49,"start":"2026-12-24T19:10Z","start_local":"21:10"},{"end":"2026-12-24T23:45Z","end_local":"01:45","hours":0.42,"label":"poor","mean_quality":0.25,"start":"2026-12-24T23:20Z","start_local":"01:20"},{"end":"2026-12-25T05:50Z","end_local":"07:50","hours":6.08,"label":"unusable","mean_quality":0.0,"start":"2026-12-24T23:45Z","start_local":"01:45"}]}],"unscheduled":[{"name":"M42","why":"its best window (20:45\u201322:25) is outranked by M31, M33"}],"warnings":[]}
