{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-18","schedule":[{"end":"2025-10-19T03:00Z","end_local":"06:00","hours":11.42,"mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35","target":null},{"end":"2025-10-19T03:10Z","end_local":"06:10","hours":0.17,"mean_quality":0.33,"start":"2025-10-19T03:00Z","start_local":"06:00","target":"M45"},{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":1.5,"mean_quality":0.0,"start":"2025-10-19T03:10Z","start_local":"06:10","target":null}],"targets":[{"best_window":null,"dec":41.26875,"moon_separation":136.4,"name":"M31","quality_hours":0.1,"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":1,"score_astronomy":100,"score_weather":1,"transit":{"airmass":1.0,"alt":89.7,"az":189.0,"t":"2025-10-18T21:15Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-19T03:00Z","end_local":"06:00","hours":11.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"},{"end":"2025-10-19T03:55Z","end_local":"06:55","hours":0.92,"label":"poor","mean_quality":0.11,"start":"2025-10-19T03:00Z","start_local":"06:00"},{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":0.75,"label":"unusable","mean_quality":0.0,"start":"2025-10-19T03:55Z","start_local":"06:55"}]},{"best_window":{"end":"2025-10-19T03:10Z","end_local":"06:10","hours":0.17,"label":"marginal","mean_quality":0.31,"start":"2025-10-19T03:00Z","start_local":"06:00"},"dec":-5.3876,"moon_separation":93.1,"name":"M42","quality_hours":0.16,"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":3,"score_astronomy":89,"score_weather":4,"transit":{"airmass":1.47,"alt":42.9,"az":179.5,"t":"2025-10-19T02:05Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-19T03:00Z","end_local":"06:00","hours":11.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"},{"end":"2025-10-19T03:10Z","end_local":"06:10","hours":0.17,"label":"marginal","mean_quality":0.31,"start":"2025-10-19T03:00Z","start_local":"06:00"},{"end":"2025-10-19T04:10Z","end_local":"07:10","hours":1.0,"label":"poor","mean_quality":0.1,"start":"2025-10-19T03:10Z","start_local":"06:10"},{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-10-19T04:10Z","start_local":"07:10"}]},{"best_window":{"end":"2025-10-19T03:10Z","end_local":"06:10","hours":0.17,"label":"marginal","mean_quality":0.33,"start":"2025-10-19T03:00Z","start_local":"06:00"},"dec":24.11388889,"moon_separation":117.2,"name":"M45","quality_hours":0.17,"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":2,"score_astronomy":100,"score_weather":2,"transit":{"airmass":1.05,"alt":72.5,"az":181.5,"t":"2025-10-19T00:20Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-19T03:00Z","end_local":"06:00","hours":11.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"},{"end":"2025-10-19T03:10Z","end_local":"06:10","hours":0.17,"label":"marginal","mean_quality":0.33,"start":"2025-10-19T03:00Z","start_local":"06:00"},{"end":"2025-10-19T04:10Z","end_local":"07:10","hours":1.0,"label":"poor","mean_quality":0.11,"start":"2025-10-19T03:10Z","start_local":"06:10"},{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-10-19T04:10Z","start_local":"07:10"}]},{"best_window":null,"dec":44.33,"moon_separation":121.6,"name":"NGC 7000","quality_hours":0.0,"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":0,"score_astronomy":100,"score_weather":0,"transit":{"airmass":1.0,"alt":87.3,"az":3.5,"t":"2025-10-18T17:30Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":13.08,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"}]},{"best_window":null,"dec":44.25788576,"moon_separation":121.7,"name":"V1057 Cyg","quality_hours":0.0,"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":0,"score_astronomy":100,"score_weather":0,"transit":{"airmass":1.0,"alt":87.3,"az":4.0,"t":"2025-10-18T17:30Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":13.08,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"}]},{"best_window":null,"dec":30.66017511,"moon_separation":139.9,"name":"M33","quality_hours":0.12,"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":1,"score_astronomy":100,"score_weather":1,"transit":{"airmass":1.02,"alt":79.1,"az":179.1,"t":"2025-10-18T22:05Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-19T03:00Z","end_local":"06:00","hours":11.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-18T15:35Z","start_local":"18:35"},{"end":"2025-10-19T04:05Z","end_local":"07:05","hours":1.08,"label":"poor","mean_quality":0.11,"start":"2025-10-19T03:00Z","start_local":"06:00"},{"end":"2025-10-19T04:40Z","end_local":"07:40","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2025-10-19T04:05Z","start_local":"07:05"}]}],"unscheduled":[{"name":"M31","why":"Overcast (\u226580 % cloud) for 10.9 of 12.1 dark hours \u2014 the sky is closed whatever the geometry says."},{"name":"M42","why":"its best window (06:00\u201306:10) is outranked by M45"},{"name":"NGC 7000","why":"Overcast (\u226580 % cloud) for 10.9 of 12.1 dark hours \u2014 the sky is closed whatever the geometry says."},{"name":"V1057 Cyg","why":"Overcast (\u226580 % cloud) for 10.9 of 12.1 dark hours \u2014 the sky is closed whatever the geometry says."},{"name":"M33","why":"Overcast (\u226580 % cloud) for 10.9 of 12.1 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}