← 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. |
|---|---|---|---|---|---|---|---|---|
| 2032-03-17 Wed | 20 | — | unknown | 20:05–20:45 (good, 0.67 h) | 72.5° 16:25 | 8.85 | 41% | 19.0° |
| 2032-03-18 Thu | 15 | — | unknown | 20:05–21:55 (marginal, 1.83 h) | 72.5° 16:25 | 8.8 | 51% | 30.9° |
| 2032-03-19 Fri | 12 | — | unknown | 20:10–21:45 (marginal, 1.58 h) | 72.5° 16:20 | 8.75 | 60% | 42.7° |
| 2032-03-20 Sat | 12 | — | unknown | 20:10–21:40 (marginal, 1.5 h) | 72.5° 16:15 | 8.69 | 69% | 54.5° |
| 2032-03-21 Sun | 11 | — | unknown | 20:10–21:35 (marginal, 1.42 h) | 72.5° 16:10 | 8.64 | 78% | 66.3° |
| 2032-03-22 Mon | 12 | — | unknown | 20:10–21:35 (marginal, 1.42 h) | 72.5° 16:05 | 8.59 | 85% | 78.0° |
| 2032-03-23 Tue | 13 | — | unknown | 20:15–21:35 (marginal, 1.33 h) | 72.5° 16:05 | 8.54 | 91% | 89.8° |
| 2032-03-24 Wed | 15 | — | unknown | 20:15–20:45 (good, 0.5 h) | 72.5° 16:00 | 8.48 | 96% | 101.7° |
| 2032-03-25 Thu | 18 | — | unknown | 20:15–20:50 (good, 0.58 h) | 72.5° 15:55 | 8.43 | 99% | 113.8° |
| 2032-03-26 Fri | 18 | — | unknown | 20:15–20:50 (good, 0.58 h) | 72.5° 15:50 | 8.38 | 100% | 126.0° |
| 2032-03-27 Sat | 17 | — | unknown | 20:20–20:50 (good, 0.5 h) | 72.5° 15:45 | 8.32 | 99% | 138.4° |
| 2032-03-28 Sun | 18 | — | unknown | 21:20–21:45 (good, 0.42 h) | 72.5° 16:45 | 8.27 | 96% | 150.9° |
| 2032-03-29 Mon | 18 | — | unknown | 21:20–21:50 (good, 0.5 h) | 72.5° 16:40 | 8.22 | 92% | 163.3° |
| 2032-03-30 Tue | 15 | — | unknown | 21:25–21:45 (good, 0.33 h) | 72.5° 16:35 | 8.16 | 85% | 173.6° |
| 2032-03-31 Wed | 13 | — | unknown | 21:25–21:40 (good, 0.25 h) | 72.5° 16:30 | 8.11 | 76% | 167.7° |
| 2032-04-01 Thu | 11 | — | unknown | 21:25–21:40 (good, 0.25 h) | 72.5° 16:30 | 8.05 | 66% | 155.0° |
| 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° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2032-03-17&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.