← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-03-22 Wed | 44 | — | unknown | 03:05–04:50 (good, 1.75 h) | 87.3° 09:20 | 8.61 | 9% | 76.1° |
| 2034-03-23 Thu | 44 | — | unknown | 03:00–04:45 (good, 1.75 h) | 87.3° 09:15 | 8.56 | 17% | 84.3° |
| 2034-03-24 Fri | 46 | — | unknown | 02:55–04:45 (good, 1.83 h) | 87.3° 09:10 | 8.51 | 27% | 92.6° |
| 2034-03-25 Sat | 47 | — | unknown | 02:50–05:45 (good, 1.92 h) | 87.3° 10:05 | 8.46 | 38% | 100.6° |
| 2034-03-26 Sun | 47 | — | unknown | 03:45–05:40 (good, 1.92 h) | 87.3° 10:00 | 8.4 | 49% | 107.9° |
| 2034-03-27 Mon | 48 | — | unknown | 03:45–05:40 (good, 1.92 h) | 87.3° 10:00 | 8.35 | 60% | 114.3° |
| 2034-03-28 Tue | 48 | — | unknown | 03:45–05:35 (good, 1.83 h) | 87.3° 09:55 | 8.3 | 70% | 119.5° |
| 2034-03-29 Wed | 48 | — | unknown | 03:45–05:35 (good, 1.83 h) | 87.3° 09:50 | 8.24 | 79% | 123.0° |
| 2034-03-30 Thu | 48 | — | unknown | 03:40–05:35 (good, 1.92 h) | 87.3° 09:45 | 8.19 | 86% | 124.8° |
| 2034-03-31 Fri | 43 | — | unknown | 03:40–05:30 (good, 1.83 h) | 87.3° 09:40 | 8.13 | 92% | 124.7° |
| 2034-04-01 Sat | 43 | — | unknown | 03:35–05:30 (good, 1.92 h) | 87.3° 09:40 | 8.08 | 97% | 122.8° |
| 2034-04-02 Sun | 41 | — | unknown | 03:35–05:25 (good, 1.83 h) | 87.3° 09:35 | 8.02 | 99% | 119.3° |
| 2034-04-03 Mon | 40 | — | unknown | 03:35–05:25 (good, 1.83 h) | 87.3° 09:30 | 7.97 | 100% | 114.7° |
| 2034-04-04 Tue | 38 | — | unknown | 03:35–05:25 (good, 1.83 h) | 87.3° 09:25 | 7.91 | 99% | 109.1° |
| 2034-04-05 Wed | 35 | — | unknown | 03:35–05:20 (good, 1.75 h) | 87.3° 09:25 | 7.86 | 96% | 102.9° |
| 2034-04-06 Thu | 34 | — | unknown | 03:35–05:20 (good, 1.75 h) | 87.3° 09:20 | 7.8 | 91% | 96.3° |
| 2034-04-07 Fri | 34 | — | unknown | 03:30–05:20 (good, 1.83 h) | 87.3° 09:15 | 7.75 | 85% | 89.6° |
| 2034-04-08 Sat | 33 | — | unknown | 03:25–05:15 (good, 1.83 h) | 87.3° 09:10 | 7.69 | 78% | 82.8° |
| 2034-04-09 Sun | 35 | — | unknown | 03:20–05:15 (good, 1.92 h) | 87.3° 09:05 | 7.63 | 70% | 76.1° |
| 2034-04-10 Mon | 37 | — | unknown | 03:10–05:10 (good, 2.0 h) | 87.3° 09:05 | 7.58 | 60% | 69.9° |
| 2034-04-11 Tue | 42 | — | unknown | 03:00–05:10 (good, 2.17 h) | 87.3° 09:00 | 7.52 | 50% | 64.2° |
| 2034-04-12 Wed | 50 | — | unknown | 02:40–05:10 (good, 2.5 h) | 87.3° 08:55 | 7.46 | 40% | 59.5° |
| 2034-04-13 Thu | 55 | — | unknown | 02:35–05:05 (good, 2.5 h) | 87.3° 08:50 | 7.4 | 30% | 56.3° |
| 2034-04-14 Fri | 61 | — | unknown | 02:30–05:05 (good, 2.58 h) | 87.3° 08:45 | 7.35 | 20% | 55.0° |
| 2034-04-15 Sat | 64 | — | unknown | 02:30–05:00 (good, 2.5 h) | 87.3° 08:45 | 7.29 | 12% | 56.2° |
| 2034-04-16 Sun | 65 | — | unknown | 02:25–05:00 (good, 2.58 h) | 87.3° 08:40 | 7.23 | 5% | 59.7° |
| 2034-04-17 Mon | 67 | — | unknown | 02:20–05:00 (good, 2.67 h) | 87.3° 08:35 | 7.17 | 1% | 65.3° |
| 2034-04-18 Tue | 68 | — | unknown | 02:15–04:55 (good, 2.67 h) | 87.3° 08:30 | 7.12 | 0% | 72.5° |
| 2034-04-19 Wed | 68 | — | unknown | 02:15–04:55 (good, 2.67 h) | 87.3° 08:30 | 7.06 | 2% | 80.7° |
| 2034-04-20 Thu | 69 | — | unknown | 02:10–04:50 (good, 2.67 h) | 87.3° 08:25 | 7.0 | 7% | 89.3° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-03-22&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.