← 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. |
|---|---|---|---|---|---|---|---|---|
| 2029-03-04 Sun | 23 | — | unknown | 19:50–20:40 (good, 0.83 h) | 79.1° 15:05 | 9.5 | 76% | 161.8° |
| 2029-03-05 Mon | 22 | — | unknown | 19:50–20:35 (good, 0.75 h) | 79.1° 15:00 | 9.45 | 65% | 151.1° |
| 2029-03-06 Tue | 21 | — | unknown | 19:50–20:30 (good, 0.67 h) | 79.1° 15:00 | 9.4 | 54% | 138.8° |
| 2029-03-07 Wed | 18 | — | unknown | 19:55–20:25 (good, 0.5 h) | 79.1° 14:55 | 9.35 | 44% | 126.2° |
| 2029-03-08 Thu | 17 | — | unknown | 19:55–20:25 (good, 0.5 h) | 79.1° 14:50 | 9.31 | 33% | 113.7° |
| 2029-03-09 Fri | 15 | — | unknown | 19:55–20:20 (good, 0.42 h) | 79.1° 14:45 | 9.26 | 24% | 101.3° |
| 2029-03-10 Sat | 13 | — | unknown | 19:55–20:15 (good, 0.33 h) | 79.1° 14:45 | 9.21 | 16% | 89.2° |
| 2029-03-11 Sun | 11 | — | unknown | 20:00–20:10 (good, 0.17 h) | 79.1° 14:40 | 9.16 | 10% | 77.3° |
| 2029-03-12 Mon | 9 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.1° 14:35 | 9.11 | 5% | 65.5° |
| 2029-03-13 Tue | 8 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.1° 14:30 | 9.06 | 2% | 54.0° |
| 2029-03-14 Wed | 7 | — | unknown | 19:30–20:30 (marginal, 1.0 h) | 79.1° 14:25 | 9.01 | 0% | 42.8° |
| 2029-03-15 Thu | 5 | — | unknown | 20:05–20:25 (marginal, 0.33 h) | 79.1° 14:25 | 8.96 | 1% | 32.0° |
| 2029-03-16 Fri | 4 | — | unknown | 20:05–20:20 (marginal, 0.25 h) | 79.1° 14:20 | 8.91 | 3% | 22.3° |
| 2029-03-17 Sat | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.1° 14:15 | 8.86 | 7% | 15.6° |
| 2029-03-18 Sun | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 79.1° 14:10 | 8.81 | 12% | 16.2° |
| 2029-03-19 Mon | 1 | — | unknown | — | 79.1° 14:05 | 8.76 | 19% | 23.6° |
| 2029-03-20 Tue | 1 | — | unknown | — | 79.1° 14:05 | 8.71 | 27% | 33.7° |
| 2029-03-21 Wed | 1 | — | unknown | — | 79.1° 14:00 | 8.66 | 36% | 44.9° |
| 2029-03-22 Thu | 0 | — | unknown | — | 79.1° 13:55 | 8.6 | 46% | 56.7° |
| 2029-03-23 Fri | 0 | — | unknown | — | 79.1° 13:50 | 8.55 | 56% | 69.0° |
| 2029-03-24 Sat | 0 | — | unknown | — | 79.1° 13:50 | 8.5 | 67% | 81.8° |
| 2029-03-25 Sun | 0 | — | unknown | — | 79.1° 14:45 | 8.45 | 77% | 95.1° |
| 2029-03-26 Mon | 0 | — | unknown | — | 79.1° 14:40 | 8.39 | 86% | 108.9° |
| 2029-03-27 Tue | 0 | — | unknown | — | 79.1° 14:35 | 8.34 | 93% | 123.0° |
| 2029-03-28 Wed | 0 | — | unknown | — | 79.1° 14:30 | 8.28 | 98% | 137.1° |
| 2029-03-29 Thu | 0 | — | unknown | — | 79.1° 14:30 | 8.23 | 100% | 150.8° |
| 2029-03-30 Fri | 0 | — | unknown | — | 79.1° 14:25 | 8.18 | 99% | 162.1° |
| 2029-03-31 Sat | 0 | — | unknown | — | 79.1° 14:20 | 8.12 | 95% | 164.4° |
| 2029-04-01 Sun | 0 | — | unknown | — | 79.1° 14:15 | 8.07 | 88% | 155.4° |
| 2029-04-02 Mon | 0 | — | unknown | — | 79.1° 14:10 | 8.01 | 80% | 143.0° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2029-03-04&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.