← 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. |
|---|---|---|---|---|---|---|---|---|
| 2047-07-05 Fri | 2 | — | unknown | 23:10–23:15 (marginal, 0.08 h) | 50.1° 19:00 | 4.64 | 97% | 78.2° |
| 2047-07-06 Sat | 2 | — | unknown | 23:10–23:15 (marginal, 0.08 h) | 50.1° 18:55 | 4.67 | 100% | 92.3° |
| 2047-07-07 Sun | 2 | — | unknown | 22:15–22:25 (marginal, 0.17 h) | 50.1° 18:50 | 4.7 | 100% | 106.2° |
| 2047-07-08 Mon | 3 | — | unknown | 22:15–22:30 (marginal, 0.25 h) | 50.1° 18:45 | 4.73 | 97% | 119.7° |
| 2047-07-09 Tue | 3 | — | unknown | 22:15–22:25 (marginal, 0.17 h) | 50.1° 18:45 | 4.76 | 92% | 132.8° |
| 2047-07-10 Wed | 2 | — | unknown | 22:15–22:30 (marginal, 0.25 h) | 50.1° 18:40 | 4.8 | 86% | 145.4° |
| 2047-07-11 Thu | 2 | — | unknown | 22:15–22:25 (marginal, 0.17 h) | 50.1° 18:35 | 4.83 | 78% | 157.2° |
| 2047-07-12 Fri | 2 | — | unknown | 22:15–22:20 (marginal, 0.08 h) | 50.1° 18:30 | 4.87 | 70% | 167.1° |
| 2047-07-13 Sat | 2 | — | unknown | 22:15–22:20 (marginal, 0.08 h) | 50.1° 18:25 | 4.91 | 60% | 169.3° |
| 2047-07-14 Sun | 2 | — | unknown | 22:10–22:15 (marginal, 0.08 h) | 50.1° 18:25 | 4.95 | 51% | 161.3° |
| 2047-07-15 Mon | 1 | — | unknown | — | 50.1° 18:20 | 5.0 | 41% | 150.7° |
| 2047-07-16 Tue | 1 | — | unknown | — | 50.1° 18:15 | 5.04 | 32% | 139.4° |
| 2047-07-17 Wed | 1 | — | unknown | — | 50.1° 18:10 | 5.08 | 24% | 127.8° |
| 2047-07-18 Thu | 1 | — | unknown | — | 50.1° 18:05 | 5.13 | 16% | 116.0° |
| 2047-07-19 Fri | 1 | — | unknown | — | 50.1° 18:05 | 5.17 | 9% | 104.0° |
| 2047-07-20 Sat | 1 | — | unknown | — | 50.1° 18:00 | 5.22 | 4% | 91.7° |
| 2047-07-21 Sun | 1 | — | unknown | — | 50.1° 17:55 | 5.27 | 1% | 79.1° |
| 2047-07-22 Mon | 0 | — | unknown | — | 50.1° 17:50 | 5.32 | 0% | 66.2° |
| 2047-07-23 Tue | 0 | — | unknown | — | 50.1° 17:50 | 5.37 | 1% | 53.2° |
| 2047-07-24 Wed | 0 | — | unknown | — | 50.1° 17:45 | 5.42 | 5% | 40.0° |
| 2047-07-25 Thu | 0 | — | unknown | — | 50.1° 17:40 | 5.47 | 10% | 26.9° |
| 2047-07-26 Fri | 0 | — | unknown | — | 50.1° 17:35 | 5.52 | 18% | 14.9° |
| 2047-07-27 Sat | 0 | — | unknown | — | 50.1° 17:30 | 5.57 | 28% | 10.3° |
| 2047-07-28 Sun | 0 | — | unknown | — | 50.1° 17:30 | 5.63 | 39% | 19.6° |
| 2047-07-29 Mon | 0 | — | unknown | — | 50.1° 17:25 | 5.68 | 50% | 32.5° |
| 2047-07-30 Tue | 0 | — | unknown | — | 50.1° 17:20 | 5.73 | 62% | 46.2° |
| 2047-07-31 Wed | 0 | — | unknown | — | 50.1° 17:15 | 5.79 | 72% | 60.0° |
| 2047-08-01 Thu | 0 | — | unknown | — | 50.1° 17:10 | 5.84 | 82% | 73.9° |
| 2047-08-02 Fri | 0 | — | unknown | — | 50.1° 17:10 | 5.9 | 90% | 87.7° |
| 2047-08-03 Sat | 0 | — | unknown | — | 50.1° 17:05 | 5.95 | 96% | 101.4° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2047-07-05&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.