{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-08-19","schedule":[{"end":"2027-08-19T18:25Z","end_local":"21:25","hours":1.17,"mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15","target":null},{"end":"2027-08-19T19:55Z","end_local":"22:55","hours":1.5,"mean_quality":0.52,"start":"2027-08-19T18:25Z","start_local":"21:25","target":"NGC 7000"},{"end":"2027-08-19T21:25Z","end_local":"00:25","hours":1.5,"mean_quality":0.58,"start":"2027-08-19T19:55Z","start_local":"22:55","target":"V1057 Cyg"},{"end":"2027-08-19T22:55Z","end_local":"01:55","hours":1.5,"mean_quality":0.43,"start":"2027-08-19T21:25Z","start_local":"00:25","target":"M31"},{"end":"2027-08-20T00:25Z","end_local":"03:25","hours":1.5,"mean_quality":0.39,"start":"2027-08-19T22:55Z","start_local":"01:55","target":"M33"},{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":1.5,"mean_quality":0.5,"start":"2027-08-20T00:25Z","start_local":"03:25","target":"M45"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":1.67,"mean_quality":0.0,"start":"2027-08-20T01:55Z","start_local":"04:55","target":null}],"targets":[{"best_window":{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":6.92,"label":"marginal","mean_quality":0.42,"start":"2027-08-19T19:00Z","start_local":"22:00"},"dec":41.26875,"moon_separation":42.2,"name":"M31","quality_hours":3.17,"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":36,"score_weather":null,"transit":{"airmass":1.0,"alt":89.5,"az":238.1,"t":"2027-08-20T01:15Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-19T18:35Z","end_local":"21:35","hours":1.33,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-19T19:00Z","end_local":"22:00","hours":0.42,"label":"poor","mean_quality":0.15,"start":"2027-08-19T18:35Z","start_local":"21:35"},{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":6.92,"label":"marginal","mean_quality":0.42,"start":"2027-08-19T19:00Z","start_local":"22:00"},{"end":"2027-08-20T03:05Z","end_local":"06:05","hours":1.17,"label":"poor","mean_quality":0.15,"start":"2027-08-20T01:55Z","start_local":"04:55"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T03:05Z","start_local":"06:05"}]},{"best_window":null,"dec":-5.3876,"moon_separation":89.4,"name":"M42","quality_hours":0.06,"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":180.3,"t":"2027-08-20T06:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-20T02:20Z","end_local":"05:20","hours":9.08,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-20T03:05Z","end_local":"06:05","hours":0.75,"label":"poor","mean_quality":0.08,"start":"2027-08-20T02:20Z","start_local":"05:20"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T03:05Z","start_local":"06:05"}]},{"best_window":{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":2.83,"label":"marginal","mean_quality":0.46,"start":"2027-08-19T23:05Z","start_local":"02:05"},"dec":24.11388889,"moon_separation":63.9,"name":"M45","quality_hours":1.61,"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":22,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":179.3,"t":"2027-08-20T04:15Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-19T22:45Z","end_local":"01:45","hours":5.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-19T23:05Z","end_local":"02:05","hours":0.33,"label":"poor","mean_quality":0.27,"start":"2027-08-19T22:45Z","start_local":"01:45"},{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":2.83,"label":"marginal","mean_quality":0.46,"start":"2027-08-19T23:05Z","start_local":"02:05"},{"end":"2027-08-20T03:05Z","end_local":"06:05","hours":1.17,"label":"poor","mean_quality":0.18,"start":"2027-08-20T01:55Z","start_local":"04:55"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T03:05Z","start_local":"06:05"}]},{"best_window":{"end":"2027-08-19T20:05Z","end_local":"23:05","hours":1.08,"label":"good","mean_quality":0.63,"start":"2027-08-19T19:00Z","start_local":"22:00"},"dec":44.33,"moon_separation":55.3,"name":"NGC 7000","quality_hours":4.09,"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":66,"score_weather":null,"transit":{"airmass":1.0,"alt":87.2,"az":355.5,"t":"2027-08-19T21:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-19T17:50Z","end_local":"20:50","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-19T18:25Z","end_local":"21:25","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2027-08-19T17:50Z","start_local":"20:50"},{"end":"2027-08-19T19:00Z","end_local":"22:00","hours":0.58,"label":"marginal","mean_quality":0.33,"start":"2027-08-19T18:25Z","start_local":"21:25"},{"end":"2027-08-19T20:05Z","end_local":"23:05","hours":1.08,"label":"good","mean_quality":0.63,"start":"2027-08-19T19:00Z","start_local":"22:00"},{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":5.83,"label":"marginal","mean_quality":0.51,"start":"2027-08-19T20:05Z","start_local":"23:05"},{"end":"2027-08-20T03:05Z","end_local":"06:05","hours":1.17,"label":"poor","mean_quality":0.14,"start":"2027-08-20T01:55Z","start_local":"04:55"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T03:05Z","start_local":"06:05"}]},{"best_window":{"end":"2027-08-19T20:05Z","end_local":"23:05","hours":1.08,"label":"good","mean_quality":0.63,"start":"2027-08-19T19:00Z","start_local":"22:00"},"dec":44.25788576,"moon_separation":55.3,"name":"V1057 Cyg","quality_hours":4.09,"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":66,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":355.8,"t":"2027-08-19T21:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-19T17:50Z","end_local":"20:50","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-19T18:25Z","end_local":"21:25","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2027-08-19T17:50Z","start_local":"20:50"},{"end":"2027-08-19T19:00Z","end_local":"22:00","hours":0.58,"label":"marginal","mean_quality":0.33,"start":"2027-08-19T18:25Z","start_local":"21:25"},{"end":"2027-08-19T20:05Z","end_local":"23:05","hours":1.08,"label":"good","mean_quality":0.63,"start":"2027-08-19T19:00Z","start_local":"22:00"},{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":5.83,"label":"marginal","mean_quality":0.51,"start":"2027-08-19T20:05Z","start_local":"23:05"},{"end":"2027-08-20T03:05Z","end_local":"06:05","hours":1.17,"label":"poor","mean_quality":0.14,"start":"2027-08-20T01:55Z","start_local":"04:55"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T03:05Z","start_local":"06:05"}]},{"best_window":{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":5.33,"label":"marginal","mean_quality":0.39,"start":"2027-08-19T20:35Z","start_local":"23:35"},"dec":30.66017511,"moon_separation":39.9,"name":"M33","quality_hours":2.34,"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":25,"score_weather":null,"transit":{"airmass":1.02,"alt":79.1,"az":181.5,"t":"2027-08-20T02:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-19T20:10Z","end_local":"23:10","hours":2.92,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-19T20:35Z","end_local":"23:35","hours":0.42,"label":"poor","mean_quality":0.26,"start":"2027-08-19T20:10Z","start_local":"23:10"},{"end":"2027-08-20T01:55Z","end_local":"04:55","hours":5.33,"label":"marginal","mean_quality":0.39,"start":"2027-08-19T20:35Z","start_local":"23:35"},{"end":"2027-08-20T03:05Z","end_local":"06:05","hours":1.17,"label":"poor","mean_quality":0.14,"start":"2027-08-20T01:55Z","start_local":"04:55"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T03:05Z","start_local":"06:05"}]}],"unscheduled":[{"name":"M42","why":"no usable window tonight"}],"warnings":[]}
