← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-03-07 Wed | 14 | — | unknown | 19:55–20:15 (good, 0.33 h) | 89.7° 14:05 | 9.38 | 5% | 68.5° |
| 2035-03-08 Thu | 13 | — | unknown | 19:55–20:10 (good, 0.25 h) | 89.6° 14:00 | 9.33 | 1% | 58.8° |
| 2035-03-09 Fri | 11 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.5° 14:00 | 9.28 | 0% | 49.8° |
| 2035-03-10 Sat | 10 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.7° 13:55 | 9.23 | 1% | 42.4° |
| 2035-03-11 Sun | 7 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.8° 13:50 | 9.18 | 5% | 37.7° |
| 2035-03-12 Mon | 6 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.7° 13:45 | 9.13 | 11% | 37.2° |
| 2035-03-13 Tue | 5 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.6° 13:40 | 9.09 | 19% | 41.1° |
| 2035-03-14 Wed | 3 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.6° 13:40 | 9.04 | 29% | 48.4° |
| 2035-03-15 Thu | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.7° 13:35 | 8.99 | 40% | 57.7° |
| 2035-03-16 Fri | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.8° 13:30 | 8.94 | 51% | 68.1° |
| 2035-03-17 Sat | 1 | — | unknown | — | 89.7° 13:25 | 8.88 | 62% | 79.1° |
| 2035-03-18 Sun | 1 | — | unknown | — | 89.5° 13:20 | 8.83 | 73% | 90.2° |
| 2035-03-19 Mon | 1 | — | unknown | — | 89.6° 13:20 | 8.78 | 82% | 101.3° |
| 2035-03-20 Tue | 1 | — | unknown | — | 89.7° 13:15 | 8.73 | 90% | 112.0° |
| 2035-03-21 Wed | 0 | — | unknown | — | 89.8° 13:10 | 8.68 | 96% | 122.0° |
| 2035-03-22 Thu | 0 | — | unknown | — | 89.6° 13:05 | 8.63 | 99% | 130.8° |
| 2035-03-23 Fri | 0 | — | unknown | — | 89.5° 13:05 | 8.58 | 100% | 137.9° |
| 2035-03-24 Sat | 0 | — | unknown | — | 89.7° 13:00 | 8.52 | 99% | 142.2° |
| 2035-03-25 Sun | 0 | — | unknown | — | 89.8° 13:55 | 8.47 | 96% | 143.0° |
| 2035-03-26 Mon | 0 | — | unknown | — | 89.7° 13:50 | 8.42 | 91% | 140.3° |
| 2035-03-27 Tue | 0 | — | unknown | — | 89.6° 13:45 | 8.36 | 85% | 135.0° |
| 2035-03-28 Wed | 0 | — | unknown | — | 89.6° 13:45 | 8.31 | 77% | 127.8° |
| 2035-03-29 Thu | 0 | — | unknown | — | 89.7° 13:40 | 8.26 | 69% | 119.6° |
| 2035-03-30 Fri | 0 | — | unknown | — | 89.8° 13:35 | 8.2 | 60% | 110.8° |
| 2035-03-31 Sat | 0 | — | unknown | — | 89.7° 13:30 | 8.15 | 50% | 101.5° |
| 2035-04-01 Sun | 0 | — | unknown | — | 89.5° 13:25 | 8.09 | 41% | 92.0° |
| 2035-04-02 Mon | 0 | — | unknown | — | 89.6° 13:25 | 8.04 | 31% | 82.3° |
| 2035-04-03 Tue | 0 | — | unknown | — | 89.7° 13:20 | 7.98 | 22% | 72.4° |
| 2035-04-04 Wed | 0 | — | unknown | — | 89.8° 13:15 | 7.93 | 14% | 62.7° |
| 2035-04-05 Thu | 0 | — | unknown | — | 89.6° 13:10 | 7.87 | 8% | 53.3° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-03-07&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.