← 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. |
|---|---|---|---|---|---|---|---|---|
| 2032-04-02 Fri | 10 | — | unknown | 21:25–21:35 (good, 0.17 h) | 72.5° 16:25 | 8.0 | 56% | 141.5° |
| 2032-04-03 Sat | 8 | — | unknown | 20:55–22:00 (marginal, 1.08 h) | 72.5° 16:20 | 7.94 | 44% | 127.7° |
| 2032-04-04 Sun | 7 | — | unknown | 21:30–21:55 (marginal, 0.42 h) | 72.5° 16:15 | 7.89 | 33% | 113.5° |
| 2032-04-05 Mon | 6 | — | unknown | 20:55–21:25 (marginal, 0.5 h) | 72.5° 16:10 | 7.83 | 23% | 99.2° |
| 2032-04-06 Tue | 5 | — | unknown | 20:55–21:20 (marginal, 0.42 h) | 72.5° 16:10 | 7.77 | 14% | 84.7° |
| 2032-04-07 Wed | 3 | — | unknown | 21:00–21:15 (marginal, 0.25 h) | 72.5° 16:05 | 7.72 | 6% | 70.2° |
| 2032-04-08 Thu | 3 | — | unknown | 21:00–21:10 (marginal, 0.17 h) | 72.5° 16:00 | 7.66 | 2% | 55.8° |
| 2032-04-09 Fri | 2 | — | unknown | 21:00–21:05 (marginal, 0.08 h) | 72.5° 15:55 | 7.61 | 0% | 41.5° |
| 2032-04-10 Sat | 1 | — | unknown | 21:00–21:05 (marginal, 0.08 h) | 72.5° 15:50 | 7.55 | 1% | 27.6° |
| 2032-04-11 Sun | 1 | — | unknown | — | 72.5° 15:50 | 7.49 | 4% | 14.5° |
| 2032-04-12 Mon | 1 | — | unknown | — | 72.5° 15:45 | 7.43 | 10% | 5.9° |
| 2032-04-13 Tue | 1 | — | unknown | — | 72.5° 15:40 | 7.38 | 16% | 14.5° |
| 2032-04-14 Wed | 0 | — | unknown | — | 72.5° 15:35 | 7.32 | 25% | 26.6° |
| 2032-04-15 Thu | 0 | — | unknown | — | 72.5° 15:30 | 7.26 | 34% | 38.7° |
| 2032-04-16 Fri | 0 | — | unknown | — | 72.5° 15:30 | 7.2 | 43% | 50.6° |
| 2032-04-17 Sat | 0 | — | unknown | — | 72.5° 15:25 | 7.15 | 53% | 62.5° |
| 2032-04-18 Sun | 0 | — | unknown | — | 72.5° 15:20 | 7.09 | 62% | 74.2° |
| 2032-04-19 Mon | 0 | — | unknown | — | 72.5° 15:15 | 7.03 | 71% | 86.0° |
| 2032-04-20 Tue | 0 | — | unknown | — | 72.5° 15:15 | 6.97 | 79% | 97.9° |
| 2032-04-21 Wed | 0 | — | unknown | — | 72.5° 15:10 | 6.91 | 86% | 109.9° |
| 2032-04-22 Thu | 0 | — | unknown | — | 72.5° 15:05 | 6.86 | 92% | 122.0° |
| 2032-04-23 Fri | 0 | — | unknown | — | 72.5° 15:00 | 6.8 | 97% | 134.4° |
| 2032-04-24 Sat | 0 | — | unknown | — | 72.5° 14:55 | 6.74 | 100% | 147.0° |
| 2032-04-25 Sun | 0 | — | unknown | — | 72.5° 14:55 | 6.68 | 100% | 159.7° |
| 2032-04-26 Mon | 0 | — | unknown | — | 72.5° 14:50 | 6.62 | 98% | 171.4° |
| 2032-04-27 Tue | 0 | — | unknown | — | 72.5° 14:45 | 6.56 | 94% | 170.6° |
| 2032-04-28 Wed | 0 | — | unknown | — | 72.5° 14:40 | 6.51 | 88% | 158.2° |
| 2032-04-29 Thu | 0 | — | unknown | — | 72.5° 14:35 | 6.45 | 79% | 144.7° |
| 2032-04-30 Fri | 0 | — | unknown | — | 72.5° 14:35 | 6.39 | 69% | 130.8° |
| 2032-05-01 Sat | 0 | — | unknown | — | 72.5° 14:30 | 6.33 | 58% | 116.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2032-04-02&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.