← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-02-20 Tue | 27 | — | unknown | 19:35–20:55 (good, 1.33 h) | 79.1° 15:55 | 10.05 | 97% | 100.7° |
| 2035-02-21 Wed | 33 | — | unknown | 19:35–21:05 (good, 1.5 h) | 79.1° 15:50 | 10.01 | 100% | 113.5° |
| 2035-02-22 Thu | 34 | — | unknown | 19:40–21:10 (good, 1.5 h) | 79.1° 15:50 | 9.96 | 100% | 125.7° |
| 2035-02-23 Fri | 35 | — | unknown | 19:40–21:05 (good, 1.42 h) | 79.1° 15:45 | 9.92 | 97% | 137.1° |
| 2035-02-24 Sat | 37 | — | unknown | 19:40–21:05 (good, 1.42 h) | 79.1° 15:40 | 9.88 | 92% | 147.1° |
| 2035-02-25 Sun | 37 | — | unknown | 19:40–21:10 (good, 1.5 h) | 79.1° 15:35 | 9.83 | 86% | 154.3° |
| 2035-02-26 Mon | 36 | — | unknown | 19:40–21:05 (good, 1.42 h) | 79.1° 15:30 | 9.79 | 79% | 156.7° |
| 2035-02-27 Tue | 33 | — | unknown | 19:45–21:00 (good, 1.25 h) | 79.1° 15:30 | 9.75 | 70% | 153.3° |
| 2035-02-28 Wed | 32 | — | unknown | 19:45–20:55 (good, 1.17 h) | 79.1° 15:25 | 9.7 | 61% | 146.0° |
| 2035-03-01 Thu | 29 | — | unknown | 19:45–20:50 (good, 1.08 h) | 79.1° 15:20 | 9.66 | 52% | 136.9° |
| 2035-03-02 Fri | 28 | — | unknown | 19:45–20:50 (good, 1.08 h) | 79.1° 15:15 | 9.61 | 42% | 126.9° |
| 2035-03-03 Sat | 26 | — | unknown | 19:50–20:45 (good, 0.92 h) | 79.1° 15:10 | 9.56 | 33% | 116.4° |
| 2035-03-04 Sun | 25 | — | unknown | 19:50–20:40 (good, 0.83 h) | 79.1° 15:10 | 9.52 | 24% | 105.6° |
| 2035-03-05 Mon | 23 | — | unknown | 19:50–20:35 (good, 0.75 h) | 79.1° 15:05 | 9.47 | 17% | 94.4° |
| 2035-03-06 Tue | 21 | — | unknown | 19:50–20:35 (good, 0.75 h) | 79.1° 15:00 | 9.42 | 10% | 82.9° |
| 2035-03-07 Wed | 19 | — | unknown | 19:55–20:30 (good, 0.58 h) | 79.1° 14:55 | 9.38 | 5% | 71.3° |
| 2035-03-08 Thu | 18 | — | unknown | 19:55–20:25 (good, 0.5 h) | 79.1° 14:55 | 9.33 | 1% | 59.5° |
| 2035-03-09 Fri | 16 | — | unknown | 19:55–20:20 (good, 0.42 h) | 79.1° 14:50 | 9.28 | 0% | 47.8° |
| 2035-03-10 Sat | 14 | — | unknown | 19:55–20:15 (good, 0.33 h) | 79.1° 14:45 | 9.23 | 1% | 36.8° |
| 2035-03-11 Sun | 11 | — | unknown | 20:00–20:15 (good, 0.25 h) | 79.1° 14:40 | 9.18 | 5% | 27.7° |
| 2035-03-12 Mon | 9 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.1° 14:35 | 9.13 | 11% | 23.3° |
| 2035-03-13 Tue | 7 | — | unknown | 20:00–20:35 (marginal, 0.58 h) | 79.1° 14:35 | 9.09 | 19% | 26.4° |
| 2035-03-14 Wed | 5 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 79.1° 14:30 | 9.04 | 29% | 35.1° |
| 2035-03-15 Thu | 3 | — | unknown | 20:05–20:25 (marginal, 0.33 h) | 79.1° 14:25 | 8.99 | 40% | 46.4° |
| 2035-03-16 Fri | 2 | — | unknown | 20:05–20:20 (marginal, 0.25 h) | 79.1° 14:20 | 8.94 | 51% | 58.6° |
| 2035-03-17 Sat | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.1° 14:15 | 8.88 | 62% | 71.3° |
| 2035-03-18 Sun | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 79.1° 14:15 | 8.83 | 73% | 84.1° |
| 2035-03-19 Mon | 1 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 79.1° 14:10 | 8.78 | 82% | 96.8° |
| 2035-03-20 Tue | 1 | — | unknown | — | 79.1° 14:05 | 8.73 | 90% | 109.4° |
| 2035-03-21 Wed | 1 | — | unknown | — | 79.1° 14:00 | 8.68 | 96% | 121.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-02-20&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.