← 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. |
|---|---|---|---|---|---|---|---|---|
| 2046-03-10 Sat | 34 | — | unknown | 03:50–05:10 (good, 1.33 h) | 87.2° 10:05 | 9.22 | 9% | 63.5° |
| 2046-03-11 Sun | 36 | — | unknown | 03:45–05:10 (good, 1.42 h) | 87.2° 10:00 | 9.17 | 15% | 68.9° |
| 2046-03-12 Mon | 36 | — | unknown | 03:40–05:05 (good, 1.42 h) | 87.2° 09:55 | 9.12 | 23% | 75.1° |
| 2046-03-13 Tue | 36 | — | unknown | 03:40–05:05 (good, 1.42 h) | 87.2° 09:55 | 9.07 | 32% | 82.0° |
| 2046-03-14 Wed | 38 | — | unknown | 03:35–05:05 (good, 1.5 h) | 87.2° 09:50 | 9.02 | 42% | 89.3° |
| 2046-03-15 Thu | 38 | — | unknown | 03:30–05:00 (good, 1.5 h) | 87.2° 09:45 | 8.97 | 52% | 96.8° |
| 2046-03-16 Fri | 39 | — | unknown | 03:25–05:00 (good, 1.58 h) | 87.2° 09:40 | 8.92 | 63% | 104.3° |
| 2046-03-17 Sat | 39 | — | unknown | 03:30–04:55 (good, 1.42 h) | 87.1° 09:35 | 8.87 | 74% | 111.4° |
| 2046-03-18 Sun | 38 | — | unknown | 03:30–04:55 (good, 1.42 h) | 87.2° 09:35 | 8.82 | 83% | 117.7° |
| 2046-03-19 Mon | 36 | — | unknown | 03:25–04:55 (good, 1.5 h) | 87.2° 09:30 | 8.77 | 91% | 122.4° |
| 2046-03-20 Tue | 35 | — | unknown | 03:25–04:50 (good, 1.42 h) | 87.2° 09:25 | 8.71 | 97% | 124.9° |
| 2046-03-21 Wed | 35 | — | unknown | 03:20–04:50 (good, 1.5 h) | 87.2° 09:20 | 8.66 | 100% | 124.6° |
| 2046-03-22 Thu | 36 | — | unknown | 03:15–04:50 (good, 1.58 h) | 87.1° 09:20 | 8.61 | 99% | 121.6° |
| 2046-03-23 Fri | 34 | — | unknown | 03:15–04:45 (good, 1.5 h) | 87.2° 09:15 | 8.56 | 96% | 116.4° |
| 2046-03-24 Sat | 34 | — | unknown | 04:15–05:45 (good, 1.5 h) | 87.2° 10:10 | 8.5 | 90% | 109.8° |
| 2046-03-25 Sun | 33 | — | unknown | 04:10–05:45 (good, 1.58 h) | 87.2° 10:05 | 8.45 | 83% | 102.3° |
| 2046-03-26 Mon | 33 | — | unknown | 04:05–05:40 (good, 1.58 h) | 87.2° 10:00 | 8.4 | 74% | 94.6° |
| 2046-03-27 Tue | 34 | — | unknown | 04:00–05:40 (good, 1.67 h) | 87.2° 10:00 | 8.35 | 64% | 87.0° |
| 2046-03-28 Wed | 35 | — | unknown | 03:55–05:35 (good, 1.67 h) | 87.2° 09:55 | 8.29 | 54% | 79.7° |
| 2046-03-29 Thu | 39 | — | unknown | 03:35–05:35 (good, 2.0 h) | 87.2° 09:50 | 8.24 | 44% | 73.0° |
| 2046-03-30 Fri | 44 | — | unknown | 03:30–05:35 (good, 2.08 h) | 87.2° 09:45 | 8.18 | 34% | 67.0° |
| 2046-03-31 Sat | 48 | — | unknown | 03:25–05:30 (good, 2.08 h) | 87.2° 09:40 | 8.13 | 25% | 61.9° |
| 2046-04-01 Sun | 51 | — | unknown | 03:25–05:30 (good, 2.08 h) | 87.2° 09:40 | 8.07 | 18% | 58.1° |
| 2046-04-02 Mon | 52 | — | unknown | 03:20–05:25 (good, 2.08 h) | 87.2° 09:35 | 8.02 | 11% | 55.7° |
| 2046-04-03 Tue | 54 | — | unknown | 03:15–05:25 (good, 2.17 h) | 87.2° 09:30 | 7.96 | 6% | 54.9° |
| 2046-04-04 Wed | 56 | — | unknown | 03:10–05:25 (good, 2.25 h) | 87.2° 09:25 | 7.91 | 2% | 55.8° |
| 2046-04-05 Thu | 56 | — | unknown | 03:05–05:20 (good, 2.25 h) | 87.1° 09:25 | 7.85 | 0% | 58.4° |
| 2046-04-06 Fri | 57 | — | unknown | 03:05–05:20 (good, 2.25 h) | 87.2° 09:20 | 7.8 | 0% | 62.4° |
| 2046-04-07 Sat | 57 | — | unknown | 03:00–05:15 (good, 2.25 h) | 87.2° 09:15 | 7.74 | 2% | 67.6° |
| 2046-04-08 Sun | 58 | — | unknown | 02:55–05:15 (good, 2.33 h) | 87.2° 09:10 | 7.68 | 6% | 73.7° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2046-03-10&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.