{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-04-21","schedule":[{"end":"2028-04-21T22:30Z","end_local":"01:30","hours":5.42,"mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05","target":null},{"end":"2028-04-22T00:30Z","end_local":"03:30","hours":2.0,"mean_quality":0.7,"start":"2028-04-21T22:30Z","start_local":"01:30","target":"NGC 7000"},{"end":"2028-04-22T02:25Z","end_local":"05:25","hours":1.92,"mean_quality":0.77,"start":"2028-04-22T00:30Z","start_local":"03:30","target":"V1057 Cyg"},{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":1.08,"mean_quality":0.0,"start":"2028-04-22T02:25Z","start_local":"05:25","target":null}],"targets":[{"best_window":null,"dec":41.26875,"moon_separation":39.2,"name":"M31","quality_hours":0.05,"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":89.7,"az":161.4,"t":"2028-04-21T09:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-22T02:25Z","end_local":"05:25","hours":9.33,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05"},{"end":"2028-04-22T03:05Z","end_local":"06:05","hours":0.67,"label":"poor","mean_quality":0.08,"start":"2028-04-22T02:25Z","start_local":"05:25"},{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-22T03:05Z","start_local":"06:05"}]},{"best_window":null,"dec":-5.3876,"moon_separation":86.5,"name":"M42","quality_hours":0.01,"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":0,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":179.3,"t":"2028-04-21T13:55Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-21T17:40Z","end_local":"20:40","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05"},{"end":"2028-04-21T17:45Z","end_local":"20:45","hours":0.08,"label":"poor","mean_quality":0.06,"start":"2028-04-21T17:40Z","start_local":"20:40"},{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":9.75,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:45Z","start_local":"20:45"}]},{"best_window":null,"dec":24.11388889,"moon_separation":60.1,"name":"M45","quality_hours":0.01,"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":0,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":180.9,"t":"2028-04-21T12:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-21T17:40Z","end_local":"20:40","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05"},{"end":"2028-04-21T17:45Z","end_local":"20:45","hours":0.08,"label":"poor","mean_quality":0.06,"start":"2028-04-21T17:40Z","start_local":"20:40"},{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":9.75,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:45Z","start_local":"20:45"}]},{"best_window":{"end":"2028-04-22T01:50Z","end_local":"04:50","hours":2.75,"label":"good","mean_quality":0.84,"start":"2028-04-21T23:05Z","start_local":"02:05"},"dec":44.33,"moon_separation":55.4,"name":"NGC 7000","quality_hours":2.99,"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":71,"score_weather":null,"transit":{"airmass":1.0,"alt":87.2,"az":351.4,"t":"2028-04-22T05:20Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-21T22:30Z","end_local":"01:30","hours":5.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05"},{"end":"2028-04-21T23:05Z","end_local":"02:05","hours":0.58,"label":"marginal","mean_quality":0.51,"start":"2028-04-21T22:30Z","start_local":"01:30"},{"end":"2028-04-22T01:50Z","end_local":"04:50","hours":2.75,"label":"good","mean_quality":0.84,"start":"2028-04-21T23:05Z","start_local":"02:05"},{"end":"2028-04-22T02:25Z","end_local":"05:25","hours":0.58,"label":"marginal","mean_quality":0.48,"start":"2028-04-22T01:50Z","start_local":"04:50"},{"end":"2028-04-22T03:05Z","end_local":"06:05","hours":0.67,"label":"poor","mean_quality":0.15,"start":"2028-04-22T02:25Z","start_local":"05:25"},{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-22T03:05Z","start_local":"06:05"}]},{"best_window":{"end":"2028-04-22T01:50Z","end_local":"04:50","hours":2.75,"label":"good","mean_quality":0.84,"start":"2028-04-21T23:05Z","start_local":"02:05"},"dec":44.25788576,"moon_separation":55.3,"name":"V1057 Cyg","quality_hours":2.98,"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":70,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":351.5,"t":"2028-04-22T05:20Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-21T22:30Z","end_local":"01:30","hours":5.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05"},{"end":"2028-04-21T23:05Z","end_local":"02:05","hours":0.58,"label":"marginal","mean_quality":0.51,"start":"2028-04-21T22:30Z","start_local":"01:30"},{"end":"2028-04-22T01:50Z","end_local":"04:50","hours":2.75,"label":"good","mean_quality":0.84,"start":"2028-04-21T23:05Z","start_local":"02:05"},{"end":"2028-04-22T02:25Z","end_local":"05:25","hours":0.58,"label":"marginal","mean_quality":0.48,"start":"2028-04-22T01:50Z","start_local":"04:50"},{"end":"2028-04-22T03:05Z","end_local":"06:05","hours":0.67,"label":"poor","mean_quality":0.15,"start":"2028-04-22T02:25Z","start_local":"05:25"},{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-22T03:05Z","start_local":"06:05"}]},{"best_window":null,"dec":30.66017511,"moon_separation":36.2,"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":178.3,"t":"2028-04-21T09:55Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-22T03:30Z","end_local":"06:30","hours":10.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-21T17:05Z","start_local":"20:05"}]}],"unscheduled":[{"name":"M31","why":"no usable window tonight"},{"name":"M42","why":"no usable window tonight"},{"name":"M45","why":"no usable window tonight"},{"name":"M33","why":"The target stays below 20\u00b0 for the whole night."}],"warnings":[]}
