{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-02-29","schedule":[{"end":"2028-02-29T17:15Z","end_local":"19:15","hours":1.08,"mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10","target":null},{"end":"2028-02-29T18:20Z","end_local":"20:20","hours":1.08,"mean_quality":0.67,"start":"2028-02-29T17:15Z","start_local":"19:15","target":"M45"},{"end":"2028-02-29T19:15Z","end_local":"21:15","hours":0.92,"mean_quality":0.58,"start":"2028-02-29T18:20Z","start_local":"20:20","target":"M33"},{"end":"2028-02-29T21:10Z","end_local":"23:10","hours":1.92,"mean_quality":0.68,"start":"2028-02-29T19:15Z","start_local":"21:15","target":"M42"},{"end":"2028-03-01T01:50Z","end_local":"03:50","hours":4.67,"mean_quality":0.0,"start":"2028-02-29T21:10Z","start_local":"23:10","target":null},{"end":"2028-03-01T02:55Z","end_local":"04:55","hours":1.08,"mean_quality":0.57,"start":"2028-03-01T01:50Z","start_local":"03:50","target":"NGC 7000"},{"end":"2028-03-01T04:00Z","end_local":"06:00","hours":1.08,"mean_quality":0.6,"start":"2028-03-01T02:55Z","start_local":"04:55","target":"V1057 Cyg"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":1.0,"mean_quality":0.0,"start":"2028-03-01T04:00Z","start_local":"06:00","target":null}],"targets":[{"best_window":{"end":"2028-02-29T18:30Z","end_local":"20:30","hours":0.75,"label":"good","mean_quality":0.69,"start":"2028-02-29T17:45Z","start_local":"19:45"},"dec":41.26875,"moon_separation":28.3,"name":"M31","quality_hours":1.1,"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":20,"score_weather":null,"transit":{"airmass":1.0,"alt":89.7,"az":182.8,"t":"2028-02-29T12:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-02-29T16:40Z","end_local":"18:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10"},{"end":"2028-02-29T17:15Z","end_local":"19:15","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2028-02-29T16:40Z","start_local":"18:40"},{"end":"2028-02-29T17:45Z","end_local":"19:45","hours":0.5,"label":"marginal","mean_quality":0.38,"start":"2028-02-29T17:15Z","start_local":"19:15"},{"end":"2028-02-29T18:30Z","end_local":"20:30","hours":0.75,"label":"good","mean_quality":0.69,"start":"2028-02-29T17:45Z","start_local":"19:45"},{"end":"2028-02-29T19:10Z","end_local":"21:10","hours":0.67,"label":"marginal","mean_quality":0.48,"start":"2028-02-29T18:30Z","start_local":"20:30"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":9.83,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T19:10Z","start_local":"21:10"}]},{"best_window":{"end":"2028-02-29T20:40Z","end_local":"22:40","hours":2.92,"label":"good","mean_quality":0.78,"start":"2028-02-29T17:45Z","start_local":"19:45"},"dec":-5.3876,"moon_separation":60.8,"name":"M42","quality_hours":2.79,"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":57,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":179.5,"t":"2028-02-29T17:20Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-02-29T16:40Z","end_local":"18:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10"},{"end":"2028-02-29T17:15Z","end_local":"19:15","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2028-02-29T16:40Z","start_local":"18:40"},{"end":"2028-02-29T17:45Z","end_local":"19:45","hours":0.5,"label":"marginal","mean_quality":0.41,"start":"2028-02-29T17:15Z","start_local":"19:15"},{"end":"2028-02-29T20:40Z","end_local":"22:40","hours":2.92,"label":"good","mean_quality":0.78,"start":"2028-02-29T17:45Z","start_local":"19:45"},{"end":"2028-02-29T21:10Z","end_local":"23:10","hours":0.5,"label":"marginal","mean_quality":0.51,"start":"2028-02-29T20:40Z","start_local":"22:40"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":7.83,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T21:10Z","start_local":"23:10"}]},{"best_window":{"end":"2028-02-29T20:45Z","end_local":"22:45","hours":3.0,"label":"good","mean_quality":0.8,"start":"2028-02-29T17:45Z","start_local":"19:45"},"dec":24.11388889,"moon_separation":29.3,"name":"M45","quality_hours":2.9,"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":64,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":181.4,"t":"2028-02-29T15:35Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-02-29T16:40Z","end_local":"18:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10"},{"end":"2028-02-29T17:15Z","end_local":"19:15","hours":0.58,"label":"poor","mean_quality":0.13,"start":"2028-02-29T16:40Z","start_local":"18:40"},{"end":"2028-02-29T17:45Z","end_local":"19:45","hours":0.5,"label":"marginal","mean_quality":0.45,"start":"2028-02-29T17:15Z","start_local":"19:15"},{"end":"2028-02-29T20:45Z","end_local":"22:45","hours":3.0,"label":"good","mean_quality":0.8,"start":"2028-02-29T17:45Z","start_local":"19:45"},{"end":"2028-02-29T21:10Z","end_local":"23:10","hours":0.42,"label":"marginal","mean_quality":0.5,"start":"2028-02-29T20:45Z","start_local":"22:45"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":7.83,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T21:10Z","start_local":"23:10"}]},{"best_window":{"end":"2028-03-01T03:25Z","end_local":"05:25","hours":1.0,"label":"good","mean_quality":0.74,"start":"2028-03-01T02:25Z","start_local":"04:25"},"dec":44.33,"moon_separation":65.6,"name":"NGC 7000","quality_hours":1.34,"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":28,"score_weather":null,"transit":{"airmass":1.0,"alt":87.2,"az":7.9,"t":"2028-03-01T08:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-03-01T01:50Z","end_local":"03:50","hours":9.67,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10"},{"end":"2028-03-01T02:25Z","end_local":"04:25","hours":0.58,"label":"marginal","mean_quality":0.49,"start":"2028-03-01T01:50Z","start_local":"03:50"},{"end":"2028-03-01T03:25Z","end_local":"05:25","hours":1.0,"label":"good","mean_quality":0.74,"start":"2028-03-01T02:25Z","start_local":"04:25"},{"end":"2028-03-01T04:00Z","end_local":"06:00","hours":0.58,"label":"marginal","mean_quality":0.42,"start":"2028-03-01T03:25Z","start_local":"05:25"},{"end":"2028-03-01T04:30Z","end_local":"06:30","hours":0.5,"label":"poor","mean_quality":0.13,"start":"2028-03-01T04:00Z","start_local":"06:00"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-03-01T04:30Z","start_local":"06:30"}]},{"best_window":{"end":"2028-03-01T03:25Z","end_local":"05:25","hours":1.0,"label":"good","mean_quality":0.74,"start":"2028-03-01T02:25Z","start_local":"04:25"},"dec":44.25788576,"moon_separation":65.6,"name":"V1057 Cyg","quality_hours":1.3,"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":27,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":8.5,"t":"2028-03-01T08:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-03-01T01:55Z","end_local":"03:55","hours":9.75,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10"},{"end":"2028-03-01T02:25Z","end_local":"04:25","hours":0.5,"label":"marginal","mean_quality":0.5,"start":"2028-03-01T01:55Z","start_local":"03:55"},{"end":"2028-03-01T03:25Z","end_local":"05:25","hours":1.0,"label":"good","mean_quality":0.74,"start":"2028-03-01T02:25Z","start_local":"04:25"},{"end":"2028-03-01T04:00Z","end_local":"06:00","hours":0.58,"label":"marginal","mean_quality":0.42,"start":"2028-03-01T03:25Z","start_local":"05:25"},{"end":"2028-03-01T04:30Z","end_local":"06:30","hours":0.5,"label":"poor","mean_quality":0.13,"start":"2028-03-01T04:00Z","start_local":"06:00"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-03-01T04:30Z","start_local":"06:30"}]},{"best_window":{"end":"2028-02-29T18:45Z","end_local":"20:45","hours":1.0,"label":"good","mean_quality":0.71,"start":"2028-02-29T17:45Z","start_local":"19:45"},"dec":30.66017511,"moon_separation":14.5,"name":"M33","quality_hours":1.26,"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":24,"score_weather":null,"transit":{"airmass":1.02,"alt":79.1,"az":178.9,"t":"2028-02-29T13:20Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-02-29T16:40Z","end_local":"18:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T16:10Z","start_local":"18:10"},{"end":"2028-02-29T17:15Z","end_local":"19:15","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2028-02-29T16:40Z","start_local":"18:40"},{"end":"2028-02-29T17:45Z","end_local":"19:45","hours":0.5,"label":"marginal","mean_quality":0.39,"start":"2028-02-29T17:15Z","start_local":"19:15"},{"end":"2028-02-29T18:45Z","end_local":"20:45","hours":1.0,"label":"good","mean_quality":0.71,"start":"2028-02-29T17:45Z","start_local":"19:45"},{"end":"2028-02-29T19:20Z","end_local":"21:20","hours":0.58,"label":"marginal","mean_quality":0.49,"start":"2028-02-29T18:45Z","start_local":"20:45"},{"end":"2028-03-01T05:00Z","end_local":"07:00","hours":9.67,"label":"unusable","mean_quality":0.0,"start":"2028-02-29T19:20Z","start_local":"21:20"}]}],"unscheduled":[{"name":"M31","why":"its best window (19:45\u201320:30) is outranked by M33, M45"}],"warnings":[]}
