← single night · whole-night plan
Which nights are best for a target over the coming weeks. The astronomy mark (darkness × altitude × Moon) is computed for every night; the weather and the overall mark exist only where Open-Meteo has a forecast (the next four days) or ERA5 history (past nights) — the rest is honestly blank.
| night of | astronomy | weather | overall | best window | highest | dark h | Moon | Moon sep. |
|---|---|---|---|---|---|---|---|---|
| 2041-11-10 Sun | 60 | — | unknown | 18:45–21:25 (good, 2.67 h) | 87.1° 15:40 | 10.82 | 91% | 112.3° |
| 2041-11-11 Mon | 69 | — | unknown | 18:40–21:25 (good, 2.75 h) | 87.1° 15:35 | 10.85 | 84% | 113.4° |
| 2041-11-12 Tue | 70 | — | unknown | 18:40–21:20 (good, 2.67 h) | 87.1° 15:30 | 10.88 | 76% | 113.1° |
| 2041-11-13 Wed | 70 | — | unknown | 18:40–21:25 (good, 2.75 h) | 87.1° 15:25 | 10.91 | 67% | 111.7° |
| 2041-11-14 Thu | 69 | — | unknown | 18:40–21:25 (good, 2.75 h) | 87.1° 15:25 | 10.94 | 57% | 109.4° |
| 2041-11-15 Fri | 67 | — | unknown | 18:40–21:20 (good, 2.67 h) | 87.1° 15:20 | 10.97 | 48% | 106.2° |
| 2041-11-16 Sat | 66 | — | unknown | 18:40–21:15 (good, 2.58 h) | 87.1° 15:15 | 11.0 | 38% | 102.4° |
| 2041-11-17 Sun | 64 | — | unknown | 18:40–21:10 (good, 2.5 h) | 87.1° 15:10 | 11.03 | 29% | 98.1° |
| 2041-11-18 Mon | 64 | — | unknown | 18:35–21:05 (good, 2.5 h) | 87.1° 15:10 | 11.05 | 21% | 93.6° |
| 2041-11-19 Tue | 62 | — | unknown | 18:35–21:05 (good, 2.5 h) | 87.1° 15:05 | 11.08 | 14% | 88.8° |
| 2041-11-20 Wed | 60 | — | unknown | 18:35–21:00 (good, 2.42 h) | 87.1° 15:00 | 11.1 | 8% | 84.0° |
| 2041-11-21 Thu | 58 | — | unknown | 18:35–20:55 (good, 2.33 h) | 87.1° 14:55 | 11.13 | 3% | 79.4° |
| 2041-11-22 Fri | 57 | — | unknown | 18:35–20:50 (good, 2.25 h) | 87.1° 14:50 | 11.15 | 1% | 75.1° |
| 2041-11-23 Sat | 56 | — | unknown | 18:35–20:45 (good, 2.17 h) | 87.1° 14:50 | 11.18 | 0% | 71.4° |
| 2041-11-24 Sun | 54 | — | unknown | 18:35–20:45 (good, 2.17 h) | 87.1° 14:45 | 11.2 | 2% | 68.6° |
| 2041-11-25 Mon | 52 | — | unknown | 18:35–20:40 (good, 2.08 h) | 87.1° 14:40 | 11.22 | 6% | 66.9° |
| 2041-11-26 Tue | 49 | — | unknown | 18:35–20:35 (good, 2.0 h) | 87.1° 14:35 | 11.24 | 12% | 66.6° |
| 2041-11-27 Wed | 44 | — | unknown | 18:35–20:30 (good, 1.92 h) | 87.1° 14:30 | 11.26 | 20% | 67.6° |
| 2041-11-28 Thu | 39 | — | unknown | 18:35–20:20 (good, 1.75 h) | 87.1° 14:30 | 11.28 | 29% | 70.0° |
| 2041-11-29 Fri | 34 | — | unknown | 18:35–20:10 (good, 1.58 h) | 87.1° 14:25 | 11.3 | 40% | 73.6° |
| 2041-11-30 Sat | 30 | — | unknown | 18:35–20:00 (good, 1.42 h) | 87.1° 14:20 | 11.32 | 51% | 78.2° |
| 2041-12-01 Sun | 27 | — | unknown | 18:35–19:50 (good, 1.25 h) | 87.1° 14:15 | 11.34 | 62% | 83.4° |
| 2041-12-02 Mon | 24 | — | unknown | 18:35–19:45 (good, 1.17 h) | 87.1° 14:15 | 11.35 | 73% | 89.0° |
| 2041-12-03 Tue | 23 | — | unknown | 18:35–19:35 (good, 1.0 h) | 87.1° 14:10 | 11.37 | 83% | 94.6° |
| 2041-12-04 Wed | 23 | — | unknown | 18:35–19:35 (good, 1.0 h) | 87.1° 14:05 | 11.38 | 90% | 100.0° |
| 2041-12-05 Thu | 23 | — | unknown | 18:35–19:35 (good, 1.0 h) | 87.1° 14:00 | 11.4 | 96% | 104.8° |
| 2041-12-06 Fri | 24 | — | unknown | 18:35–19:35 (good, 1.0 h) | 87.1° 13:55 | 11.41 | 99% | 108.7° |
| 2041-12-07 Sat | 24 | — | unknown | 18:35–19:35 (good, 1.0 h) | 87.1° 13:55 | 11.42 | 100% | 111.6° |
| 2041-12-08 Sun | 25 | — | unknown | 18:35–19:35 (good, 1.0 h) | 87.1° 13:50 | 11.44 | 98% | 113.2° |
| 2041-12-09 Mon | 25 | — | unknown | 18:35–19:30 (good, 0.92 h) | 87.1° 13:45 | 11.45 | 94% | 113.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2041-11-10&days=30"
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&days=30&format=csv" -o m31-calendar.csvOne row per night: score_astronomy always, score_weather / score only where a forecast or history exists (null otherwise, with weather_source saying which), best window, dark hours, Moon illumination and separation, transit. 7–60 nights. Errors: 400 with invalid_date or target_unresolved. Results are cached for six hours; calculation version 2026-10-10.1.