← 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. |
|---|---|---|---|---|---|---|---|---|
| 2047-03-06 Wed | 7 | — | unknown | 19:50–20:45 (marginal, 0.92 h) | 89.8° 14:10 | 9.42 | 70% | 73.8° |
| 2047-03-07 Thu | 7 | — | unknown | 19:55–20:40 (marginal, 0.75 h) | 89.8° 14:05 | 9.37 | 79% | 85.3° |
| 2047-03-08 Fri | 7 | — | unknown | 19:55–20:45 (marginal, 0.83 h) | 89.6° 14:00 | 9.32 | 87% | 97.4° |
| 2047-03-09 Sat | 7 | — | unknown | 19:55–20:40 (marginal, 0.75 h) | 89.6° 14:00 | 9.28 | 94% | 109.7° |
| 2047-03-10 Sun | 7 | — | unknown | 19:55–20:35 (marginal, 0.67 h) | 89.8° 13:55 | 9.23 | 98% | 122.1° |
| 2047-03-11 Mon | 6 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.8° 13:50 | 9.18 | 100% | 133.9° |
| 2047-03-12 Tue | 6 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.7° 13:45 | 9.13 | 99% | 144.2° |
| 2047-03-13 Wed | 6 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.6° 13:40 | 9.08 | 95% | 150.7° |
| 2047-03-14 Thu | 5 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.6° 13:40 | 9.03 | 88% | 150.9° |
| 2047-03-15 Fri | 3 | — | unknown | 19:30–19:45 (marginal, 0.25 h) | 89.8° 13:35 | 8.98 | 79% | 144.8° |
| 2047-03-16 Sat | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.8° 13:30 | 8.93 | 69% | 135.3° |
| 2047-03-17 Sun | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.7° 13:25 | 8.88 | 58% | 124.3° |
| 2047-03-18 Mon | 1 | — | unknown | — | 89.5° 13:25 | 8.83 | 47% | 112.9° |
| 2047-03-19 Tue | 1 | — | unknown | — | 89.7° 13:20 | 8.78 | 37% | 101.4° |
| 2047-03-20 Wed | 1 | — | unknown | — | 89.8° 13:15 | 8.73 | 27% | 90.0° |
| 2047-03-21 Thu | 1 | — | unknown | — | 89.8° 13:10 | 8.67 | 18% | 78.8° |
| 2047-03-22 Fri | 0 | — | unknown | — | 89.6° 13:05 | 8.62 | 12% | 68.0° |
| 2047-03-23 Sat | 0 | — | unknown | — | 89.6° 13:05 | 8.57 | 6% | 57.6° |
| 2047-03-24 Sun | 0 | — | unknown | — | 89.7° 13:00 | 8.52 | 2% | 47.9° |
| 2047-03-25 Mon | 0 | — | unknown | — | 89.8° 12:55 | 8.46 | 0% | 39.3° |
| 2047-03-26 Tue | 0 | — | unknown | — | 89.7° 12:50 | 8.41 | 0% | 32.4° |
| 2047-03-27 Wed | 0 | — | unknown | — | 89.6° 12:45 | 8.36 | 2% | 28.7° |
| 2047-03-28 Thu | 0 | — | unknown | — | 89.6° 12:45 | 8.3 | 6% | 29.2° |
| 2047-03-29 Fri | 0 | — | unknown | — | 89.8° 12:40 | 8.25 | 10% | 33.7° |
| 2047-03-30 Sat | 0 | — | unknown | — | 89.8° 12:35 | 8.2 | 17% | 41.0° |
| 2047-03-31 Sun | 0 | — | unknown | — | 89.7° 13:30 | 8.14 | 25% | 49.8° |
| 2047-04-01 Mon | 0 | — | unknown | — | 89.5° 13:30 | 8.09 | 33% | 59.7° |
| 2047-04-02 Tue | 0 | — | unknown | — | 89.7° 13:25 | 8.03 | 43% | 70.2° |
| 2047-04-03 Wed | 0 | — | unknown | — | 89.8° 13:20 | 7.98 | 53% | 81.3° |
| 2047-04-04 Thu | 0 | — | unknown | — | 89.8° 13:15 | 7.92 | 63% | 92.8° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2047-03-06&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.