← 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. |
|---|---|---|---|---|---|---|---|---|
| 2047-02-26 Tue | 35 | — | unknown | 19:40–21:05 (good, 1.42 h) | 79.2° 15:30 | 9.79 | 4% | 33.4° |
| 2047-02-27 Wed | 31 | — | unknown | 19:45–21:00 (good, 1.25 h) | 79.2° 15:30 | 9.74 | 9% | 23.3° |
| 2047-02-28 Thu | 26 | — | unknown | 19:45–20:50 (good, 1.08 h) | 79.2° 15:25 | 9.7 | 15% | 15.8° |
| 2047-03-01 Fri | 22 | — | unknown | 19:45–20:40 (good, 0.92 h) | 79.2° 15:20 | 9.65 | 23% | 15.2° |
| 2047-03-02 Sat | 18 | — | unknown | 19:45–20:30 (good, 0.75 h) | 79.2° 15:15 | 9.61 | 31% | 22.0° |
| 2047-03-03 Sun | 13 | — | unknown | 19:50–21:15 (marginal, 1.42 h) | 79.2° 15:15 | 9.56 | 40% | 31.9° |
| 2047-03-04 Mon | 11 | — | unknown | 19:50–21:05 (marginal, 1.25 h) | 79.2° 15:10 | 9.51 | 50% | 43.0° |
| 2047-03-05 Tue | 9 | — | unknown | 19:50–20:55 (marginal, 1.08 h) | 79.2° 15:05 | 9.47 | 60% | 54.7° |
| 2047-03-06 Wed | 9 | — | unknown | 19:50–20:50 (marginal, 1.0 h) | 79.2° 15:00 | 9.42 | 70% | 67.0° |
| 2047-03-07 Thu | 9 | — | unknown | 19:55–20:50 (marginal, 0.92 h) | 79.2° 14:55 | 9.37 | 79% | 79.7° |
| 2047-03-08 Fri | 9 | — | unknown | 19:55–20:50 (marginal, 0.92 h) | 79.2° 14:55 | 9.32 | 87% | 92.9° |
| 2047-03-09 Sat | 10 | — | unknown | 19:55–20:00 (good, 0.08 h) | 79.2° 14:50 | 9.28 | 94% | 106.6° |
| 2047-03-10 Sun | 11 | — | unknown | 19:55–20:05 (good, 0.17 h) | 79.2° 14:45 | 9.23 | 98% | 120.6° |
| 2047-03-11 Mon | 9 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.2° 14:40 | 9.18 | 100% | 134.7° |
| 2047-03-12 Tue | 9 | — | unknown | 19:25–20:40 (marginal, 1.25 h) | 79.2° 14:35 | 9.13 | 99% | 148.5° |
| 2047-03-13 Wed | 9 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.2° 14:35 | 9.08 | 95% | 160.5° |
| 2047-03-14 Thu | 8 | — | unknown | 19:30–20:30 (marginal, 1.0 h) | 79.2° 14:30 | 9.03 | 88% | 165.5° |
| 2047-03-15 Fri | 6 | — | unknown | 19:30–20:00 (marginal, 0.5 h) | 79.2° 14:25 | 8.98 | 79% | 158.3° |
| 2047-03-16 Sat | 5 | — | unknown | 20:05–20:25 (marginal, 0.33 h) | 79.2° 14:20 | 8.93 | 69% | 146.3° |
| 2047-03-17 Sun | 4 | — | unknown | 19:30–19:50 (marginal, 0.33 h) | 79.2° 14:20 | 8.88 | 58% | 133.4° |
| 2047-03-18 Mon | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.2° 14:15 | 8.83 | 47% | 120.5° |
| 2047-03-19 Tue | 2 | — | unknown | 19:35–19:40 (marginal, 0.08 h) | 79.2° 14:10 | 8.78 | 37% | 107.7° |
| 2047-03-20 Wed | 1 | — | unknown | 19:35–19:40 (marginal, 0.08 h) | 79.2° 14:05 | 8.73 | 27% | 95.2° |
| 2047-03-21 Thu | 1 | — | unknown | — | 79.2° 14:00 | 8.67 | 18% | 82.9° |
| 2047-03-22 Fri | 1 | — | unknown | — | 79.2° 14:00 | 8.62 | 12% | 70.9° |
| 2047-03-23 Sat | 1 | — | unknown | — | 79.2° 13:55 | 8.57 | 6% | 59.0° |
| 2047-03-24 Sun | 0 | — | unknown | — | 79.2° 13:50 | 8.52 | 2% | 47.5° |
| 2047-03-25 Mon | 0 | — | unknown | — | 79.2° 13:45 | 8.46 | 0% | 36.4° |
| 2047-03-26 Tue | 0 | — | unknown | — | 79.2° 13:40 | 8.41 | 0% | 26.0° |
| 2047-03-27 Wed | 0 | — | unknown | — | 79.2° 13:40 | 8.36 | 2% | 17.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2047-02-26&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.