← 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. |
|---|---|---|---|---|---|---|---|---|
| 2046-03-14 Wed | 22 | — | unknown | 20:00–20:20 (good, 0.33 h) | 42.9° 18:30 | 9.02 | 42% | 33.9° |
| 2046-03-15 Thu | 15 | — | unknown | 20:05–22:05 (marginal, 2.0 h) | 42.9° 18:25 | 8.97 | 52% | 32.7° |
| 2046-03-16 Fri | 11 | — | unknown | 20:05–21:50 (marginal, 1.75 h) | 42.9° 18:20 | 8.92 | 63% | 36.1° |
| 2046-03-17 Sat | 9 | — | unknown | 20:05–21:35 (marginal, 1.5 h) | 42.9° 18:15 | 8.87 | 74% | 43.4° |
| 2046-03-18 Sun | 9 | — | unknown | 20:05–21:30 (marginal, 1.42 h) | 42.9° 18:15 | 8.82 | 83% | 53.4° |
| 2046-03-19 Mon | 10 | — | unknown | 20:10–21:35 (marginal, 1.42 h) | 42.9° 18:10 | 8.77 | 91% | 64.9° |
| 2046-03-20 Tue | 13 | — | unknown | 20:10–21:40 (marginal, 1.5 h) | 42.9° 18:05 | 8.71 | 97% | 77.3° |
| 2046-03-21 Wed | 16 | — | unknown | 20:10–20:25 (good, 0.25 h) | 42.9° 18:00 | 8.66 | 100% | 90.1° |
| 2046-03-22 Thu | 19 | — | unknown | 20:10–20:55 (good, 0.75 h) | 42.9° 17:55 | 8.61 | 99% | 102.8° |
| 2046-03-23 Fri | 25 | — | unknown | 20:15–21:00 (good, 0.75 h) | 42.9° 17:55 | 8.56 | 96% | 115.2° |
| 2046-03-24 Sat | 25 | — | unknown | 20:15–21:10 (good, 0.92 h) | 42.9° 17:50 | 8.5 | 90% | 126.6° |
| 2046-03-25 Sun | 24 | — | unknown | 21:15–22:05 (good, 0.83 h) | 42.9° 18:45 | 8.45 | 83% | 136.4° |
| 2046-03-26 Mon | 22 | — | unknown | 21:15–22:00 (good, 0.75 h) | 42.9° 18:40 | 8.4 | 74% | 143.8° |
| 2046-03-27 Tue | 20 | — | unknown | 21:20–21:55 (good, 0.58 h) | 42.9° 18:40 | 8.35 | 64% | 147.3° |
| 2046-03-28 Wed | 19 | — | unknown | 21:20–21:55 (good, 0.58 h) | 42.9° 18:35 | 8.29 | 54% | 146.4° |
| 2046-03-29 Thu | 17 | — | unknown | 21:20–21:50 (good, 0.5 h) | 42.9° 18:30 | 8.24 | 44% | 141.6° |
| 2046-03-30 Fri | 15 | — | unknown | 21:20–21:45 (good, 0.42 h) | 42.9° 18:25 | 8.18 | 34% | 134.5° |
| 2046-03-31 Sat | 12 | — | unknown | 21:25–21:40 (good, 0.25 h) | 42.9° 18:20 | 8.13 | 25% | 126.0° |
| 2046-04-01 Sun | 11 | — | unknown | 21:25–21:35 (good, 0.17 h) | 42.9° 18:20 | 8.07 | 18% | 116.7° |
| 2046-04-02 Mon | 10 | — | unknown | 21:25–21:35 (good, 0.17 h) | 42.9° 18:15 | 8.02 | 11% | 107.1° |
| 2046-04-03 Tue | 8 | — | unknown | 21:25–21:30 (good, 0.08 h) | 42.9° 18:10 | 7.96 | 6% | 97.2° |
| 2046-04-04 Wed | 7 | — | unknown | 21:30–21:55 (marginal, 0.42 h) | 42.9° 18:05 | 7.91 | 2% | 87.3° |
| 2046-04-05 Thu | 6 | — | unknown | 21:30–21:50 (marginal, 0.33 h) | 42.9° 18:00 | 7.85 | 0% | 77.2° |
| 2046-04-06 Fri | 5 | — | unknown | 21:30–21:50 (marginal, 0.33 h) | 42.9° 18:00 | 7.8 | 0% | 67.3° |
| 2046-04-07 Sat | 3 | — | unknown | 21:00–21:15 (marginal, 0.25 h) | 42.9° 17:55 | 7.74 | 2% | 57.6° |
| 2046-04-08 Sun | 3 | — | unknown | 21:35–21:40 (marginal, 0.08 h) | 42.9° 17:50 | 7.68 | 6% | 48.5° |
| 2046-04-09 Mon | 2 | — | unknown | — | 42.9° 17:45 | 7.63 | 11% | 40.5° |
| 2046-04-10 Tue | 1 | — | unknown | — | 42.9° 17:45 | 7.57 | 18% | 34.7° |
| 2046-04-11 Wed | 1 | — | unknown | — | 42.9° 17:40 | 7.51 | 27% | 32.4° |
| 2046-04-12 Thu | 0 | — | unknown | — | 42.9° 17:35 | 7.46 | 37% | 34.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2046-03-14&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.