{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-07-28","schedule":[{"end":"2026-07-28T19:40Z","end_local":"22:40","hours":2.0,"mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40","target":null},{"end":"2026-07-28T21:00Z","end_local":"00:00","hours":1.33,"mean_quality":0.6,"start":"2026-07-28T19:40Z","start_local":"22:40","target":"NGC 7000"},{"end":"2026-07-28T22:20Z","end_local":"01:20","hours":1.33,"mean_quality":0.61,"start":"2026-07-28T21:00Z","start_local":"00:00","target":"V1057 Cyg"},{"end":"2026-07-28T23:40Z","end_local":"02:40","hours":1.33,"mean_quality":0.64,"start":"2026-07-28T22:20Z","start_local":"01:20","target":"M31"},{"end":"2026-07-29T01:00Z","end_local":"04:00","hours":1.33,"mean_quality":0.64,"start":"2026-07-28T23:40Z","start_local":"02:40","target":"M33"},{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":0.33,"mean_quality":0.57,"start":"2026-07-29T01:00Z","start_local":"04:00","target":"M45"},{"end":"2026-07-29T01:50Z","end_local":"04:50","hours":0.5,"mean_quality":0.31,"start":"2026-07-29T01:20Z","start_local":"04:20","target":"M33"},{"end":"2026-07-29T02:05Z","end_local":"05:05","hours":0.25,"mean_quality":0.33,"start":"2026-07-29T01:50Z","start_local":"04:50","target":"M45"},{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":1.17,"mean_quality":0.0,"start":"2026-07-29T02:05Z","start_local":"05:05","target":null}],"targets":[{"best_window":{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":3.08,"label":"good","mean_quality":0.65,"start":"2026-07-28T22:15Z","start_local":"01:15"},"dec":41.26875,"moon_separation":91.1,"name":"M31","quality_hours":3.46,"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":67,"score_astronomy":75,"score_weather":90,"transit":{"airmass":1.0,"alt":89.6,"az":231.1,"t":"2026-07-29T02:40Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-07-28T20:00Z","end_local":"23:00","hours":2.33,"label":"unusable","mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40"},{"end":"2026-07-28T20:05Z","end_local":"23:05","hours":0.08,"label":"poor","mean_quality":0.29,"start":"2026-07-28T20:00Z","start_local":"23:00"},{"end":"2026-07-28T21:35Z","end_local":"00:35","hours":1.5,"label":"marginal","mean_quality":0.48,"start":"2026-07-28T20:05Z","start_local":"23:05"},{"end":"2026-07-28T22:00Z","end_local":"01:00","hours":0.42,"label":"good","mean_quality":0.61,"start":"2026-07-28T21:35Z","start_local":"00:35"},{"end":"2026-07-28T22:15Z","end_local":"01:15","hours":0.25,"label":"marginal","mean_quality":0.6,"start":"2026-07-28T22:00Z","start_local":"01:00"},{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":3.08,"label":"good","mean_quality":0.65,"start":"2026-07-28T22:15Z","start_local":"01:15"},{"end":"2026-07-29T02:05Z","end_local":"05:05","hours":0.75,"label":"marginal","mean_quality":0.32,"start":"2026-07-29T01:20Z","start_local":"04:20"},{"end":"2026-07-29T02:45Z","end_local":"05:45","hours":0.67,"label":"poor","mean_quality":0.12,"start":"2026-07-29T02:05Z","start_local":"05:05"},{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-07-29T02:45Z","start_local":"05:45"}]},{"best_window":null,"dec":-5.3876,"moon_separation":133.8,"name":"M42","quality_hours":0.0,"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":0,"score_astronomy":0,"score_weather":0,"transit":{"airmass":1.47,"alt":42.9,"az":180.1,"t":"2026-07-29T07:30Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":9.58,"label":"unusable","mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40"}]},{"best_window":{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":1.17,"label":"marginal","mean_quality":0.49,"start":"2026-07-29T00:10Z","start_local":"03:10"},"dec":24.11388889,"moon_separation":121.6,"name":"M45","quality_hours":0.88,"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":17,"score_astronomy":20,"score_weather":83,"transit":{"airmass":1.05,"alt":72.5,"az":178.9,"t":"2026-07-29T05:40Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-07-29T00:10Z","end_local":"03:10","hours":6.5,"label":"unusable","mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40"},{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":1.17,"label":"marginal","mean_quality":0.49,"start":"2026-07-29T00:10Z","start_local":"03:10"},{"end":"2026-07-29T01:40Z","end_local":"04:40","hours":0.33,"label":"poor","mean_quality":0.29,"start":"2026-07-29T01:20Z","start_local":"04:20"},{"end":"2026-07-29T02:05Z","end_local":"05:05","hours":0.42,"label":"marginal","mean_quality":0.32,"start":"2026-07-29T01:40Z","start_local":"04:40"},{"end":"2026-07-29T02:45Z","end_local":"05:45","hours":0.67,"label":"poor","mean_quality":0.12,"start":"2026-07-29T02:05Z","start_local":"05:05"},{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-07-29T02:45Z","start_local":"05:45"}]},{"best_window":{"end":"2026-07-28T22:00Z","end_local":"01:00","hours":2.0,"label":"good","mean_quality":0.61,"start":"2026-07-28T20:00Z","start_local":"23:00"},"dec":44.33,"moon_separation":68.7,"name":"NGC 7000","quality_hours":3.87,"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":62,"score_astronomy":69,"score_weather":90,"transit":{"airmass":1.0,"alt":87.3,"az":357.4,"t":"2026-07-28T22:55Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-07-28T18:20Z","end_local":"21:20","hours":0.67,"label":"unusable","mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40"},{"end":"2026-07-28T19:40Z","end_local":"22:40","hours":1.33,"label":"poor","mean_quality":0.19,"start":"2026-07-28T18:20Z","start_local":"21:20"},{"end":"2026-07-28T20:00Z","end_local":"23:00","hours":0.33,"label":"marginal","mean_quality":0.56,"start":"2026-07-28T19:40Z","start_local":"22:40"},{"end":"2026-07-28T22:00Z","end_local":"01:00","hours":2.0,"label":"good","mean_quality":0.61,"start":"2026-07-28T20:00Z","start_local":"23:00"},{"end":"2026-07-28T23:50Z","end_local":"02:50","hours":1.83,"label":"marginal","mean_quality":0.59,"start":"2026-07-28T22:00Z","start_local":"01:00"},{"end":"2026-07-29T00:00Z","end_local":"03:00","hours":0.17,"label":"good","mean_quality":0.6,"start":"2026-07-28T23:50Z","start_local":"02:50"},{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":1.33,"label":"marginal","mean_quality":0.56,"start":"2026-07-29T00:00Z","start_local":"03:00"},{"end":"2026-07-29T02:00Z","end_local":"05:00","hours":0.67,"label":"poor","mean_quality":0.27,"start":"2026-07-29T01:20Z","start_local":"04:20"},{"end":"2026-07-29T02:05Z","end_local":"05:05","hours":0.08,"label":"marginal","mean_quality":0.33,"start":"2026-07-29T02:00Z","start_local":"05:00"},{"end":"2026-07-29T02:45Z","end_local":"05:45","hours":0.67,"label":"poor","mean_quality":0.11,"start":"2026-07-29T02:05Z","start_local":"05:05"},{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-07-29T02:45Z","start_local":"05:45"}]},{"best_window":{"end":"2026-07-28T22:00Z","end_local":"01:00","hours":2.0,"label":"good","mean_quality":0.61,"start":"2026-07-28T20:00Z","start_local":"23:00"},"dec":44.25788576,"moon_separation":68.6,"name":"V1057 Cyg","quality_hours":3.87,"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":62,"score_astronomy":69,"score_weather":90,"transit":{"airmass":1.0,"alt":87.3,"az":357.8,"t":"2026-07-28T22:55Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-07-28T18:20Z","end_local":"21:20","hours":0.67,"label":"unusable","mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40"},{"end":"2026-07-28T19:40Z","end_local":"22:40","hours":1.33,"label":"poor","mean_quality":0.19,"start":"2026-07-28T18:20Z","start_local":"21:20"},{"end":"2026-07-28T20:00Z","end_local":"23:00","hours":0.33,"label":"marginal","mean_quality":0.56,"start":"2026-07-28T19:40Z","start_local":"22:40"},{"end":"2026-07-28T22:00Z","end_local":"01:00","hours":2.0,"label":"good","mean_quality":0.61,"start":"2026-07-28T20:00Z","start_local":"23:00"},{"end":"2026-07-28T23:55Z","end_local":"02:55","hours":1.92,"label":"marginal","mean_quality":0.59,"start":"2026-07-28T22:00Z","start_local":"01:00"},{"end":"2026-07-29T00:00Z","end_local":"03:00","hours":0.08,"label":"good","mean_quality":0.6,"start":"2026-07-28T23:55Z","start_local":"02:55"},{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":1.33,"label":"marginal","mean_quality":0.56,"start":"2026-07-29T00:00Z","start_local":"03:00"},{"end":"2026-07-29T02:00Z","end_local":"05:00","hours":0.67,"label":"poor","mean_quality":0.27,"start":"2026-07-29T01:20Z","start_local":"04:20"},{"end":"2026-07-29T02:05Z","end_local":"05:05","hours":0.08,"label":"marginal","mean_quality":0.33,"start":"2026-07-29T02:00Z","start_local":"05:00"},{"end":"2026-07-29T02:45Z","end_local":"05:45","hours":0.67,"label":"poor","mean_quality":0.11,"start":"2026-07-29T02:05Z","start_local":"05:05"},{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-07-29T02:45Z","start_local":"05:45"}]},{"best_window":{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":2.25,"label":"good","mean_quality":0.63,"start":"2026-07-28T23:05Z","start_local":"02:05"},"dec":30.66017511,"moon_separation":95.6,"name":"M33","quality_hours":2.48,"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":50,"score_astronomy":57,"score_weather":88,"transit":{"airmass":1.02,"alt":79.1,"az":180.9,"t":"2026-07-29T03:30Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-07-28T21:35Z","end_local":"00:35","hours":3.92,"label":"unusable","mean_quality":0.0,"start":"2026-07-28T17:40Z","start_local":"20:40"},{"end":"2026-07-28T23:05Z","end_local":"02:05","hours":1.5,"label":"marginal","mean_quality":0.49,"start":"2026-07-28T21:35Z","start_local":"00:35"},{"end":"2026-07-29T01:20Z","end_local":"04:20","hours":2.25,"label":"good","mean_quality":0.63,"start":"2026-07-28T23:05Z","start_local":"02:05"},{"end":"2026-07-29T02:05Z","end_local":"05:05","hours":0.75,"label":"marginal","mean_quality":0.32,"start":"2026-07-29T01:20Z","start_local":"04:20"},{"end":"2026-07-29T02:45Z","end_local":"05:45","hours":0.67,"label":"poor","mean_quality":0.12,"start":"2026-07-29T02:05Z","start_local":"05:05"},{"end":"2026-07-29T03:15Z","end_local":"06:15","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-07-29T02:45Z","start_local":"05:45"}]}],"unscheduled":[{"name":"M42","why":"The target stays below 20\u00b0 for the whole night."}],"warnings":[]}