← 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. |
|---|---|---|---|---|---|---|---|---|
| 2044-03-01 Tue | 24 | — | unknown | 19:45–20:35 (good, 0.83 h) | 89.7° 14:25 | 9.62 | 5% | 36.8° |
| 2044-03-02 Wed | 20 | — | unknown | 19:50–20:25 (good, 0.58 h) | 89.5° 14:20 | 9.57 | 11% | 31.2° |
| 2044-03-03 Thu | 16 | — | unknown | 19:50–20:15 (good, 0.42 h) | 89.7° 14:20 | 9.53 | 19% | 30.4° |
| 2044-03-04 Fri | 13 | — | unknown | 19:50–20:05 (good, 0.25 h) | 89.8° 14:15 | 9.48 | 28% | 35.1° |
| 2044-03-05 Sat | 10 | — | unknown | 19:20–20:55 (marginal, 1.58 h) | 89.8° 14:10 | 9.43 | 39% | 43.6° |
| 2044-03-06 Sun | 7 | — | unknown | 19:55–20:45 (marginal, 0.83 h) | 89.6° 14:05 | 9.38 | 51% | 54.0° |
| 2044-03-07 Mon | 6 | — | unknown | 19:55–20:35 (marginal, 0.67 h) | 89.5° 14:05 | 9.34 | 62% | 65.6° |
| 2044-03-08 Tue | 5 | — | unknown | 19:55–20:35 (marginal, 0.67 h) | 89.7° 14:00 | 9.29 | 73% | 77.6° |
| 2044-03-09 Wed | 5 | — | unknown | 19:55–20:30 (marginal, 0.58 h) | 89.8° 13:55 | 9.24 | 82% | 89.8° |
| 2044-03-10 Thu | 5 | — | unknown | 19:55–20:35 (marginal, 0.67 h) | 89.7° 13:50 | 9.19 | 90% | 102.0° |
| 2044-03-11 Fri | 5 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.6° 13:45 | 9.14 | 96% | 113.8° |
| 2044-03-12 Sat | 5 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.6° 13:45 | 9.09 | 99% | 125.0° |
| 2044-03-13 Sun | 4 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.8° 13:40 | 9.04 | 100% | 135.2° |
| 2044-03-14 Mon | 3 | — | unknown | 20:00–20:15 (marginal, 0.25 h) | 89.8° 13:35 | 8.99 | 99% | 143.6° |
| 2044-03-15 Tue | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.7° 13:30 | 8.94 | 95% | 148.8° |
| 2044-03-16 Wed | 3 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.5° 13:25 | 8.89 | 90% | 149.7° |
| 2044-03-17 Thu | 1 | — | unknown | — | 89.7° 13:25 | 8.84 | 83% | 146.2° |
| 2044-03-18 Fri | 1 | — | unknown | — | 89.8° 13:20 | 8.79 | 75% | 139.6° |
| 2044-03-19 Sat | 1 | — | unknown | — | 89.8° 13:15 | 8.74 | 66% | 131.3° |
| 2044-03-20 Sun | 1 | — | unknown | — | 89.6° 13:10 | 8.69 | 57% | 122.0° |
| 2044-03-21 Mon | 0 | — | unknown | — | 89.5° 13:10 | 8.64 | 48% | 112.3° |
| 2044-03-22 Tue | 0 | — | unknown | — | 89.7° 13:05 | 8.58 | 38% | 102.1° |
| 2044-03-23 Wed | 0 | — | unknown | — | 89.8° 13:00 | 8.53 | 29% | 91.7° |
| 2044-03-24 Thu | 0 | — | unknown | — | 89.7° 12:55 | 8.48 | 21% | 81.1° |
| 2044-03-25 Fri | 0 | — | unknown | — | 89.6° 12:50 | 8.43 | 13% | 70.3° |
| 2044-03-26 Sat | 0 | — | unknown | — | 89.6° 12:50 | 8.37 | 7% | 59.6° |
| 2044-03-27 Sun | 0 | — | unknown | — | 89.8° 13:45 | 8.32 | 3% | 49.2° |
| 2044-03-28 Mon | 0 | — | unknown | — | 89.8° 13:40 | 8.27 | 0% | 39.7° |
| 2044-03-29 Tue | 0 | — | unknown | — | 89.7° 13:35 | 8.21 | 0% | 32.6° |
| 2044-03-30 Wed | 0 | — | unknown | — | 89.5° 13:30 | 8.16 | 3% | 30.1° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2044-03-01&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.