← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-03-16 Thu | 42 | — | unknown | 20:05–21:45 (good, 1.67 h) | 72.5° 16:30 | 8.92 | 16% | 109.4° |
| 2034-03-17 Fri | 40 | — | unknown | 20:05–21:40 (good, 1.58 h) | 72.5° 16:30 | 8.87 | 8% | 95.7° |
| 2034-03-18 Sat | 38 | — | unknown | 20:05–21:35 (good, 1.5 h) | 72.5° 16:25 | 8.82 | 3% | 81.6° |
| 2034-03-19 Sun | 36 | — | unknown | 20:10–21:30 (good, 1.33 h) | 72.5° 16:20 | 8.77 | 0% | 67.1° |
| 2034-03-20 Mon | 34 | — | unknown | 20:10–21:30 (good, 1.33 h) | 72.5° 16:15 | 8.72 | 0% | 52.4° |
| 2034-03-21 Tue | 32 | — | unknown | 20:10–21:25 (good, 1.25 h) | 72.5° 16:15 | 8.67 | 3% | 37.8° |
| 2034-03-22 Wed | 28 | — | unknown | 20:10–21:20 (good, 1.17 h) | 72.5° 16:10 | 8.61 | 9% | 23.5° |
| 2034-03-23 Thu | 23 | — | unknown | 20:15–21:10 (good, 0.92 h) | 72.5° 16:05 | 8.56 | 17% | 11.1° |
| 2034-03-24 Fri | 19 | — | unknown | 20:15–20:55 (good, 0.67 h) | 72.5° 16:00 | 8.51 | 27% | 11.3° |
| 2034-03-25 Sat | 14 | — | unknown | 20:15–20:40 (good, 0.42 h) | 72.5° 15:55 | 8.46 | 38% | 23.1° |
| 2034-03-26 Sun | 10 | — | unknown | 21:15–22:25 (marginal, 1.17 h) | 72.5° 16:55 | 8.4 | 49% | 36.2° |
| 2034-03-27 Mon | 8 | — | unknown | 21:20–22:20 (marginal, 1.0 h) | 72.5° 16:50 | 8.35 | 60% | 49.4° |
| 2034-03-28 Tue | 8 | — | unknown | 21:20–22:15 (marginal, 0.92 h) | 72.5° 16:45 | 8.3 | 70% | 62.3° |
| 2034-03-29 Wed | 8 | — | unknown | 21:20–22:10 (marginal, 0.83 h) | 72.5° 16:40 | 8.24 | 79% | 75.0° |
| 2034-03-30 Thu | 8 | — | unknown | 21:20–22:10 (marginal, 0.83 h) | 72.5° 16:35 | 8.19 | 86% | 87.5° |
| 2034-03-31 Fri | 8 | — | unknown | 21:25–22:10 (marginal, 0.75 h) | 72.5° 16:35 | 8.13 | 92% | 99.8° |
| 2034-04-01 Sat | 9 | — | unknown | 20:50–22:10 (marginal, 1.33 h) | 72.5° 16:30 | 8.08 | 97% | 111.9° |
| 2034-04-02 Sun | 8 | — | unknown | 20:50–22:05 (marginal, 1.25 h) | 72.5° 16:25 | 8.02 | 99% | 123.8° |
| 2034-04-03 Mon | 7 | — | unknown | 20:55–22:00 (marginal, 1.08 h) | 72.5° 16:20 | 7.97 | 100% | 135.6° |
| 2034-04-04 Tue | 6 | — | unknown | 21:30–21:55 (marginal, 0.42 h) | 72.5° 16:20 | 7.91 | 99% | 147.2° |
| 2034-04-05 Wed | 6 | — | unknown | 20:55–21:25 (marginal, 0.5 h) | 72.5° 16:15 | 7.86 | 96% | 158.4° |
| 2034-04-06 Thu | 5 | — | unknown | 21:30–21:50 (marginal, 0.33 h) | 72.5° 16:10 | 7.8 | 91% | 168.2° |
| 2034-04-07 Fri | 4 | — | unknown | 21:00–21:15 (marginal, 0.25 h) | 72.5° 16:05 | 7.75 | 85% | 170.7° |
| 2034-04-08 Sat | 3 | — | unknown | 21:00–21:15 (marginal, 0.25 h) | 72.5° 16:00 | 7.69 | 78% | 162.3° |
| 2034-04-09 Sun | 2 | — | unknown | 21:00–21:10 (marginal, 0.17 h) | 72.5° 16:00 | 7.63 | 70% | 151.2° |
| 2034-04-10 Mon | 2 | — | unknown | 21:00–21:05 (marginal, 0.08 h) | 72.5° 15:55 | 7.58 | 60% | 139.4° |
| 2034-04-11 Tue | 1 | — | unknown | — | 72.5° 15:50 | 7.52 | 50% | 127.1° |
| 2034-04-12 Wed | 1 | — | unknown | — | 72.5° 15:45 | 7.46 | 40% | 114.5° |
| 2034-04-13 Thu | 1 | — | unknown | — | 72.5° 15:40 | 7.4 | 30% | 101.4° |
| 2034-04-14 Fri | 1 | — | unknown | — | 72.5° 15:40 | 7.35 | 20% | 87.8° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-03-16&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.