{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-04-08","schedule":[{"end":"2028-04-08T18:35Z","end_local":"21:35","hours":1.75,"mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50","target":null},{"end":"2028-04-08T18:40Z","end_local":"21:40","hours":0.08,"mean_quality":0.36,"start":"2028-04-08T18:35Z","start_local":"21:35","target":"M45"},{"end":"2028-04-08T23:20Z","end_local":"02:20","hours":4.67,"mean_quality":0.0,"start":"2028-04-08T18:40Z","start_local":"21:40","target":null},{"end":"2028-04-09T00:15Z","end_local":"03:15","hours":0.92,"mean_quality":0.5,"start":"2028-04-08T23:20Z","start_local":"02:20","target":"NGC 7000"},{"end":"2028-04-09T02:50Z","end_local":"05:50","hours":2.58,"mean_quality":0.68,"start":"2028-04-09T00:15Z","start_local":"03:15","target":"V1057 Cyg"},{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":1.08,"mean_quality":0.0,"start":"2028-04-09T02:50Z","start_local":"05:50","target":null}],"targets":[{"best_window":null,"dec":41.26875,"moon_separation":148.2,"name":"M31","quality_hours":0.01,"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":0,"score_weather":null,"transit":{"airmass":1.0,"alt":89.6,"az":131.9,"t":"2028-04-08T09:55Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-09T03:15Z","end_local":"06:15","hours":10.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50"},{"end":"2028-04-09T03:25Z","end_local":"06:25","hours":0.17,"label":"poor","mean_quality":0.06,"start":"2028-04-09T03:15Z","start_local":"06:15"},{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-09T03:25Z","start_local":"06:25"}]},{"best_window":{"end":"2028-04-08T18:40Z","end_local":"21:40","hours":0.08,"label":"marginal","mean_quality":0.33,"start":"2028-04-08T18:35Z","start_local":"21:35"},"dec":-5.3876,"moon_separation":104.7,"name":"M42","quality_hours":0.21,"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":2,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.6,"t":"2028-04-08T14:50Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-08T17:25Z","end_local":"20:25","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50"},{"end":"2028-04-08T18:35Z","end_local":"21:35","hours":1.17,"label":"poor","mean_quality":0.16,"start":"2028-04-08T17:25Z","start_local":"20:25"},{"end":"2028-04-08T18:40Z","end_local":"21:40","hours":0.08,"label":"marginal","mean_quality":0.33,"start":"2028-04-08T18:35Z","start_local":"21:35"},{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":9.25,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T18:40Z","start_local":"21:40"}]},{"best_window":{"end":"2028-04-08T18:40Z","end_local":"21:40","hours":0.08,"label":"marginal","mean_quality":0.36,"start":"2028-04-08T18:35Z","start_local":"21:35"},"dec":24.11388889,"moon_separation":133.0,"name":"M45","quality_hours":0.23,"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":2,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":180.1,"t":"2028-04-08T13:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-08T17:25Z","end_local":"20:25","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50"},{"end":"2028-04-08T18:35Z","end_local":"21:35","hours":1.17,"label":"poor","mean_quality":0.18,"start":"2028-04-08T17:25Z","start_local":"20:25"},{"end":"2028-04-08T18:40Z","end_local":"21:40","hours":0.08,"label":"marginal","mean_quality":0.36,"start":"2028-04-08T18:35Z","start_local":"21:35"},{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":9.25,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T18:40Z","start_local":"21:40"}]},{"best_window":{"end":"2028-04-09T02:15Z","end_local":"05:15","hours":2.17,"label":"good","mean_quality":0.75,"start":"2028-04-09T00:05Z","start_local":"03:05"},"dec":44.33,"moon_separation":121.3,"name":"NGC 7000","quality_hours":2.3,"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":48,"score_weather":null,"transit":{"airmass":1.0,"alt":87.2,"az":355.5,"t":"2028-04-09T06:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-08T23:20Z","end_local":"02:20","hours":6.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50"},{"end":"2028-04-09T00:05Z","end_local":"03:05","hours":0.75,"label":"marginal","mean_quality":0.47,"start":"2028-04-08T23:20Z","start_local":"02:20"},{"end":"2028-04-09T02:15Z","end_local":"05:15","hours":2.17,"label":"good","mean_quality":0.75,"start":"2028-04-09T00:05Z","start_local":"03:05"},{"end":"2028-04-09T02:50Z","end_local":"05:50","hours":0.58,"label":"marginal","mean_quality":0.43,"start":"2028-04-09T02:15Z","start_local":"05:15"},{"end":"2028-04-09T03:25Z","end_local":"06:25","hours":0.58,"label":"poor","mean_quality":0.14,"start":"2028-04-09T02:50Z","start_local":"05:50"},{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-09T03:25Z","start_local":"06:25"}]},{"best_window":{"end":"2028-04-09T02:15Z","end_local":"05:15","hours":2.08,"label":"good","mean_quality":0.75,"start":"2028-04-09T00:10Z","start_local":"03:10"},"dec":44.25788576,"moon_separation":121.3,"name":"V1057 Cyg","quality_hours":2.3,"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":47,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":355.8,"t":"2028-04-09T06:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-08T23:20Z","end_local":"02:20","hours":6.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50"},{"end":"2028-04-09T00:10Z","end_local":"03:10","hours":0.83,"label":"marginal","mean_quality":0.48,"start":"2028-04-08T23:20Z","start_local":"02:20"},{"end":"2028-04-09T02:15Z","end_local":"05:15","hours":2.08,"label":"good","mean_quality":0.75,"start":"2028-04-09T00:10Z","start_local":"03:10"},{"end":"2028-04-09T02:50Z","end_local":"05:50","hours":0.58,"label":"marginal","mean_quality":0.43,"start":"2028-04-09T02:15Z","start_local":"05:15"},{"end":"2028-04-09T03:25Z","end_local":"06:25","hours":0.58,"label":"poor","mean_quality":0.14,"start":"2028-04-09T02:50Z","start_local":"05:50"},{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-09T03:25Z","start_local":"06:25"}]},{"best_window":null,"dec":30.66017511,"moon_separation":155.2,"name":"M33","quality_hours":0.0,"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":0,"score_weather":null,"transit":{"airmass":1.02,"alt":79.1,"az":182.7,"t":"2028-04-08T10:50Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-09T03:55Z","end_local":"06:55","hours":11.08,"label":"unusable","mean_quality":0.0,"start":"2028-04-08T16:50Z","start_local":"19:50"}]}],"unscheduled":[{"name":"M31","why":"no usable window tonight"},{"name":"M42","why":"its best window (21:35\u201321:40) is outranked by M45"},{"name":"M33","why":"The target stays below 20\u00b0 for the whole night."}],"warnings":[]}
