← 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. |
|---|---|---|---|---|---|---|---|---|
| 2033-03-04 Fri | 15 | — | unknown | 19:50–20:15 (good, 0.42 h) | 89.8° 14:15 | 9.49 | 18% | 35.1° |
| 2033-03-05 Sat | 13 | — | unknown | 19:50–20:00 (good, 0.17 h) | 89.6° 14:10 | 9.45 | 28% | 41.0° |
| 2033-03-06 Sun | 10 | — | unknown | 19:20–20:50 (marginal, 1.5 h) | 89.5° 14:05 | 9.4 | 38% | 49.4° |
| 2033-03-07 Mon | 7 | — | unknown | 19:55–20:45 (marginal, 0.83 h) | 89.6° 14:05 | 9.35 | 49% | 59.1° |
| 2033-03-08 Tue | 6 | — | unknown | 19:55–20:40 (marginal, 0.75 h) | 89.7° 14:00 | 9.31 | 59% | 69.3° |
| 2033-03-09 Wed | 5 | — | unknown | 19:55–20:35 (marginal, 0.67 h) | 89.7° 13:55 | 9.26 | 69% | 79.6° |
| 2033-03-10 Thu | 5 | — | unknown | 19:55–20:30 (marginal, 0.58 h) | 89.6° 13:50 | 9.21 | 78% | 89.9° |
| 2033-03-11 Fri | 4 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.5° 13:50 | 9.16 | 85% | 100.0° |
| 2033-03-12 Sat | 4 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.7° 13:45 | 9.11 | 91% | 109.8° |
| 2033-03-13 Sun | 4 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.8° 13:40 | 9.06 | 96% | 119.3° |
| 2033-03-14 Mon | 4 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.7° 13:35 | 9.01 | 99% | 128.1° |
| 2033-03-15 Tue | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.5° 13:30 | 8.96 | 100% | 135.9° |
| 2033-03-16 Wed | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.6° 13:30 | 8.91 | 99% | 142.0° |
| 2033-03-17 Thu | 1 | — | unknown | — | 89.7° 13:25 | 8.86 | 97% | 145.7° |
| 2033-03-18 Fri | 1 | — | unknown | — | 89.8° 13:20 | 8.81 | 93% | 145.8° |
| 2033-03-19 Sat | 1 | — | unknown | — | 89.7° 13:15 | 8.76 | 87% | 142.4° |
| 2033-03-20 Sun | 1 | — | unknown | — | 89.5° 13:10 | 8.71 | 80% | 136.2° |
| 2033-03-21 Mon | 1 | — | unknown | — | 89.6° 13:10 | 8.65 | 71% | 128.1° |
| 2033-03-22 Tue | 0 | — | unknown | — | 89.7° 13:05 | 8.6 | 62% | 118.8° |
| 2033-03-23 Wed | 0 | — | unknown | — | 89.7° 13:00 | 8.55 | 52% | 108.5° |
| 2033-03-24 Thu | 0 | — | unknown | — | 89.6° 12:55 | 8.5 | 41% | 97.6° |
| 2033-03-25 Fri | 0 | — | unknown | — | 89.5° 12:55 | 8.44 | 30% | 86.1° |
| 2033-03-26 Sat | 0 | — | unknown | — | 89.7° 12:50 | 8.39 | 20% | 74.4° |
| 2033-03-27 Sun | 0 | — | unknown | — | 89.8° 13:45 | 8.34 | 12% | 62.7° |
| 2033-03-28 Mon | 0 | — | unknown | — | 89.7° 13:40 | 8.28 | 5% | 51.6° |
| 2033-03-29 Tue | 0 | — | unknown | — | 89.6° 13:35 | 8.23 | 1% | 41.9° |
| 2033-03-30 Wed | 0 | — | unknown | — | 89.6° 13:35 | 8.18 | 0% | 35.4° |
| 2033-03-31 Thu | 0 | — | unknown | — | 89.7° 13:30 | 8.12 | 2% | 34.0° |
| 2033-04-01 Fri | 0 | — | unknown | — | 89.8° 13:25 | 8.07 | 7% | 38.2° |
| 2033-04-02 Sat | 0 | — | unknown | — | 89.7° 13:20 | 8.01 | 14% | 46.0° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2033-03-04&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.