← 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. |
|---|---|---|---|---|---|---|---|---|
| 2029-03-05 Mon | 18 | — | unknown | 19:50–20:20 (good, 0.5 h) | 89.6° 14:10 | 9.45 | 65% | 139.0° |
| 2029-03-06 Tue | 16 | — | unknown | 19:50–20:15 (good, 0.42 h) | 89.5° 14:05 | 9.4 | 54% | 128.7° |
| 2029-03-07 Wed | 13 | — | unknown | 19:55–20:10 (good, 0.25 h) | 89.6° 14:05 | 9.35 | 44% | 117.7° |
| 2029-03-08 Thu | 12 | — | unknown | 19:55–20:10 (good, 0.25 h) | 89.7° 14:00 | 9.31 | 33% | 106.5° |
| 2029-03-09 Fri | 10 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.7° 13:55 | 9.26 | 24% | 95.3° |
| 2029-03-10 Sat | 9 | — | unknown | 19:55–20:00 (good, 0.08 h) | 89.6° 13:50 | 9.21 | 16% | 84.3° |
| 2029-03-11 Sun | 7 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.5° 13:50 | 9.16 | 10% | 73.5° |
| 2029-03-12 Mon | 6 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.6° 13:45 | 9.11 | 5% | 63.1° |
| 2029-03-13 Tue | 5 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.7° 13:40 | 9.06 | 2% | 53.1° |
| 2029-03-14 Wed | 4 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.7° 13:35 | 9.01 | 0% | 44.0° |
| 2029-03-15 Thu | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.5° 13:30 | 8.96 | 1% | 36.1° |
| 2029-03-16 Fri | 3 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.5° 13:30 | 8.91 | 3% | 30.5° |
| 2029-03-17 Sat | 1 | — | unknown | — | 89.7° 13:25 | 8.86 | 7% | 28.6° |
| 2029-03-18 Sun | 1 | — | unknown | — | 89.7° 13:20 | 8.81 | 12% | 30.9° |
| 2029-03-19 Mon | 1 | — | unknown | — | 89.6° 13:15 | 8.76 | 19% | 36.8° |
| 2029-03-20 Tue | 1 | — | unknown | — | 89.5° 13:10 | 8.71 | 27% | 45.0° |
| 2029-03-21 Wed | 0 | — | unknown | — | 89.6° 13:10 | 8.66 | 36% | 54.5° |
| 2029-03-22 Thu | 0 | — | unknown | — | 89.7° 13:05 | 8.6 | 46% | 64.9° |
| 2029-03-23 Fri | 0 | — | unknown | — | 89.7° 13:00 | 8.55 | 56% | 76.0° |
| 2029-03-24 Sat | 0 | — | unknown | — | 89.6° 12:55 | 8.5 | 67% | 87.6° |
| 2029-03-25 Sun | 0 | — | unknown | — | 89.5° 13:55 | 8.45 | 77% | 99.7° |
| 2029-03-26 Mon | 0 | — | unknown | — | 89.6° 13:50 | 8.39 | 86% | 112.0° |
| 2029-03-27 Tue | 0 | — | unknown | — | 89.7° 13:45 | 8.34 | 93% | 124.3° |
| 2029-03-28 Wed | 0 | — | unknown | — | 89.7° 13:40 | 8.28 | 98% | 136.0° |
| 2029-03-29 Thu | 0 | — | unknown | — | 89.6° 13:35 | 8.23 | 100% | 145.7° |
| 2029-03-30 Fri | 0 | — | unknown | — | 89.5° 13:35 | 8.18 | 99% | 151.1° |
| 2029-03-31 Sat | 0 | — | unknown | — | 89.7° 13:30 | 8.12 | 95% | 149.6° |
| 2029-04-01 Sun | 0 | — | unknown | — | 89.7° 13:25 | 8.07 | 88% | 142.4° |
| 2029-04-02 Mon | 0 | — | unknown | — | 89.7° 13:20 | 8.01 | 80% | 132.2° |
| 2029-04-03 Tue | 0 | — | unknown | — | 89.5° 13:15 | 7.96 | 70% | 121.0° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2029-03-05&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.