← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-03-01 Wed | 14 | — | unknown | 19:45–20:00 (good, 0.25 h) | 89.6° 14:30 | 9.64 | 90% | 98.0° |
| 2034-03-02 Thu | 15 | — | unknown | 19:45–20:10 (good, 0.42 h) | 89.7° 14:25 | 9.6 | 95% | 108.4° |
| 2034-03-03 Fri | 16 | — | unknown | 19:50–20:15 (good, 0.42 h) | 89.8° 14:20 | 9.55 | 99% | 118.3° |
| 2034-03-04 Sat | 16 | — | unknown | 19:50–20:15 (good, 0.42 h) | 89.7° 14:15 | 9.51 | 100% | 127.3° |
| 2034-03-05 Sun | 15 | — | unknown | 19:50–20:10 (good, 0.33 h) | 89.5° 14:10 | 9.46 | 99% | 135.1° |
| 2034-03-06 Mon | 15 | — | unknown | 19:50–20:10 (good, 0.33 h) | 89.6° 14:10 | 9.41 | 97% | 141.0° |
| 2034-03-07 Tue | 13 | — | unknown | 19:55–20:15 (good, 0.33 h) | 89.7° 14:05 | 9.36 | 93% | 144.2° |
| 2034-03-08 Wed | 12 | — | unknown | 19:55–20:10 (good, 0.25 h) | 89.7° 14:00 | 9.32 | 87% | 144.1° |
| 2034-03-09 Thu | 11 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.6° 13:55 | 9.27 | 80% | 140.7° |
| 2034-03-10 Fri | 9 | — | unknown | 19:55–20:00 (good, 0.08 h) | 89.5° 13:55 | 9.22 | 72% | 134.8° |
| 2034-03-11 Sat | 7 | — | unknown | 19:25–20:30 (marginal, 1.08 h) | 89.7° 13:50 | 9.17 | 63% | 127.2° |
| 2034-03-12 Sun | 6 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.8° 13:45 | 9.12 | 53% | 118.5° |
| 2034-03-13 Mon | 5 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.7° 13:40 | 9.07 | 44% | 109.1° |
| 2034-03-14 Tue | 5 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.6° 13:35 | 9.02 | 34% | 99.0° |
| 2034-03-15 Wed | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.6° 13:35 | 8.97 | 24% | 88.5° |
| 2034-03-16 Thu | 3 | — | unknown | 19:30–19:40 (marginal, 0.17 h) | 89.7° 13:30 | 8.92 | 16% | 77.6° |
| 2034-03-17 Fri | 2 | — | unknown | 19:30–19:35 (marginal, 0.08 h) | 89.8° 13:25 | 8.87 | 8% | 66.7° |
| 2034-03-18 Sat | 1 | — | unknown | — | 89.7° 13:20 | 8.82 | 3% | 56.0° |
| 2034-03-19 Sun | 1 | — | unknown | — | 89.5° 13:15 | 8.77 | 0% | 46.3° |
| 2034-03-20 Mon | 1 | — | unknown | — | 89.6° 13:15 | 8.72 | 0% | 38.8° |
| 2034-03-21 Tue | 1 | — | unknown | — | 89.7° 13:10 | 8.67 | 3% | 35.5° |
| 2034-03-22 Wed | 0 | — | unknown | — | 89.7° 13:05 | 8.61 | 9% | 37.5° |
| 2034-03-23 Thu | 0 | — | unknown | — | 89.6° 13:00 | 8.56 | 17% | 43.9° |
| 2034-03-24 Fri | 0 | — | unknown | — | 89.5° 13:00 | 8.51 | 27% | 52.9° |
| 2034-03-25 Sat | 0 | — | unknown | — | 89.7° 12:55 | 8.46 | 38% | 63.3° |
| 2034-03-26 Sun | 0 | — | unknown | — | 89.8° 13:50 | 8.4 | 49% | 74.0° |
| 2034-03-27 Mon | 0 | — | unknown | — | 89.7° 13:45 | 8.35 | 60% | 84.9° |
| 2034-03-28 Tue | 0 | — | unknown | — | 89.6° 13:40 | 8.3 | 70% | 95.6° |
| 2034-03-29 Wed | 0 | — | unknown | — | 89.6° 13:40 | 8.24 | 79% | 106.0° |
| 2034-03-30 Thu | 0 | — | unknown | — | 89.7° 13:35 | 8.19 | 86% | 115.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-03-01&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.