← 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. |
|---|---|---|---|---|---|---|---|---|
| 2036-03-05 Wed | 10 | — | unknown | 19:50–21:00 (marginal, 1.17 h) | 79.1° 15:00 | 9.44 | 53% | 51.1° |
| 2036-03-06 Thu | 8 | — | unknown | 19:55–20:50 (marginal, 0.92 h) | 79.1° 15:00 | 9.39 | 64% | 63.4° |
| 2036-03-07 Fri | 8 | — | unknown | 19:55–20:45 (marginal, 0.83 h) | 79.1° 14:55 | 9.34 | 75% | 76.3° |
| 2036-03-08 Sat | 8 | — | unknown | 19:55–20:45 (marginal, 0.83 h) | 79.2° 14:50 | 9.29 | 84% | 89.5° |
| 2036-03-09 Sun | 9 | — | unknown | 19:25–20:45 (marginal, 1.33 h) | 79.2° 14:45 | 9.24 | 92% | 102.9° |
| 2036-03-10 Mon | 10 | — | unknown | 19:55–20:00 (good, 0.08 h) | 79.1° 14:40 | 9.2 | 97% | 116.2° |
| 2036-03-11 Tue | 8 | — | unknown | 19:25–20:40 (marginal, 1.25 h) | 79.1° 14:40 | 9.15 | 100% | 129.0° |
| 2036-03-12 Wed | 7 | — | unknown | 20:00–20:35 (marginal, 0.58 h) | 79.1° 14:35 | 9.1 | 100% | 140.7° |
| 2036-03-13 Thu | 7 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 79.2° 14:30 | 9.05 | 97% | 150.3° |
| 2036-03-14 Fri | 7 | — | unknown | 19:30–20:25 (marginal, 0.92 h) | 79.1° 14:25 | 9.0 | 92% | 155.5° |
| 2036-03-15 Sat | 5 | — | unknown | 20:05–20:25 (marginal, 0.33 h) | 79.1° 14:20 | 8.95 | 85% | 154.2° |
| 2036-03-16 Sun | 4 | — | unknown | 20:05–20:20 (marginal, 0.25 h) | 79.1° 14:20 | 8.9 | 77% | 147.6° |
| 2036-03-17 Mon | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.2° 14:15 | 8.85 | 68% | 138.5° |
| 2036-03-18 Tue | 3 | — | unknown | 19:35–19:45 (marginal, 0.17 h) | 79.2° 14:10 | 8.8 | 58% | 128.4° |
| 2036-03-19 Wed | 2 | — | unknown | 19:35–19:40 (marginal, 0.08 h) | 79.1° 14:05 | 8.74 | 48% | 117.9° |
| 2036-03-20 Thu | 1 | — | unknown | — | 79.1° 14:05 | 8.69 | 39% | 107.3° |
| 2036-03-21 Fri | 1 | — | unknown | — | 79.1° 14:00 | 8.64 | 30% | 96.6° |
| 2036-03-22 Sat | 1 | — | unknown | — | 79.2° 13:55 | 8.59 | 22% | 85.7° |
| 2036-03-23 Sun | 1 | — | unknown | — | 79.2° 13:50 | 8.54 | 14% | 74.9° |
| 2036-03-24 Mon | 0 | — | unknown | — | 79.1° 13:45 | 8.48 | 8% | 64.0° |
| 2036-03-25 Tue | 0 | — | unknown | — | 79.1° 13:45 | 8.43 | 4% | 53.3° |
| 2036-03-26 Wed | 0 | — | unknown | — | 79.1° 13:40 | 8.38 | 1% | 42.8° |
| 2036-03-27 Thu | 0 | — | unknown | — | 79.2° 13:35 | 8.32 | 0% | 33.4° |
| 2036-03-28 Fri | 0 | — | unknown | — | 79.1° 13:30 | 8.27 | 1% | 26.3° |
| 2036-03-29 Sat | 0 | — | unknown | — | 79.1° 13:25 | 8.21 | 5% | 24.2° |
| 2036-03-30 Sun | 0 | — | unknown | — | 79.1° 14:25 | 8.16 | 10% | 28.6° |
| 2036-03-31 Mon | 0 | — | unknown | — | 79.2° 14:20 | 8.11 | 18% | 37.4° |
| 2036-04-01 Tue | 0 | — | unknown | — | 79.2° 14:15 | 8.05 | 27% | 48.4° |
| 2036-04-02 Wed | 0 | — | unknown | — | 79.1° 14:10 | 8.0 | 38% | 60.4° |
| 2036-04-03 Thu | 0 | — | unknown | — | 79.1° 14:05 | 7.94 | 49% | 72.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2036-03-05&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.