← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-02-19 Mon | 22 | — | unknown | 19:35–20:05 (good, 0.5 h) | 89.6° 15:10 | 10.09 | 92% | 93.4° |
| 2035-02-20 Tue | 25 | — | unknown | 19:35–20:45 (good, 1.17 h) | 89.7° 15:05 | 10.05 | 97% | 104.6° |
| 2035-02-21 Wed | 29 | — | unknown | 19:35–20:50 (good, 1.25 h) | 89.7° 15:00 | 10.01 | 100% | 115.4° |
| 2035-02-22 Thu | 30 | — | unknown | 19:40–20:55 (good, 1.25 h) | 89.6° 14:55 | 9.96 | 100% | 125.3° |
| 2035-02-23 Fri | 30 | — | unknown | 19:40–20:50 (good, 1.17 h) | 89.5° 14:55 | 9.92 | 97% | 133.7° |
| 2035-02-24 Sat | 32 | — | unknown | 19:40–20:50 (good, 1.17 h) | 89.7° 14:50 | 9.88 | 92% | 139.8° |
| 2035-02-25 Sun | 32 | — | unknown | 19:40–20:55 (good, 1.25 h) | 89.8° 14:45 | 9.83 | 86% | 142.9° |
| 2035-02-26 Mon | 31 | — | unknown | 19:40–20:50 (good, 1.17 h) | 89.7° 14:40 | 9.79 | 79% | 142.4° |
| 2035-02-27 Tue | 28 | — | unknown | 19:45–20:45 (good, 1.0 h) | 89.6° 14:35 | 9.75 | 70% | 138.6° |
| 2035-02-28 Wed | 27 | — | unknown | 19:45–20:40 (good, 0.92 h) | 89.6° 14:35 | 9.7 | 61% | 132.6° |
| 2035-03-01 Thu | 25 | — | unknown | 19:45–20:40 (good, 0.92 h) | 89.7° 14:30 | 9.66 | 52% | 125.1° |
| 2035-03-02 Fri | 23 | — | unknown | 19:45–20:35 (good, 0.83 h) | 89.8° 14:25 | 9.61 | 42% | 116.6° |
| 2035-03-03 Sat | 22 | — | unknown | 19:50–20:30 (good, 0.67 h) | 89.7° 14:20 | 9.56 | 33% | 107.6° |
| 2035-03-04 Sun | 20 | — | unknown | 19:50–20:25 (good, 0.58 h) | 89.5° 14:15 | 9.52 | 24% | 98.2° |
| 2035-03-05 Mon | 18 | — | unknown | 19:50–20:20 (good, 0.5 h) | 89.6° 14:15 | 9.47 | 17% | 88.4° |
| 2035-03-06 Tue | 17 | — | unknown | 19:50–20:20 (good, 0.5 h) | 89.7° 14:10 | 9.42 | 10% | 78.5° |
| 2035-03-07 Wed | 14 | — | unknown | 19:55–20:15 (good, 0.33 h) | 89.7° 14:05 | 9.38 | 5% | 68.5° |
| 2035-03-08 Thu | 13 | — | unknown | 19:55–20:10 (good, 0.25 h) | 89.6° 14:00 | 9.33 | 1% | 58.8° |
| 2035-03-09 Fri | 11 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.5° 14:00 | 9.28 | 0% | 49.8° |
| 2035-03-10 Sat | 10 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.7° 13:55 | 9.23 | 1% | 42.4° |
| 2035-03-11 Sun | 7 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.8° 13:50 | 9.18 | 5% | 37.7° |
| 2035-03-12 Mon | 6 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.7° 13:45 | 9.13 | 11% | 37.2° |
| 2035-03-13 Tue | 5 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.6° 13:40 | 9.09 | 19% | 41.1° |
| 2035-03-14 Wed | 3 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.6° 13:40 | 9.04 | 29% | 48.4° |
| 2035-03-15 Thu | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.7° 13:35 | 8.99 | 40% | 57.7° |
| 2035-03-16 Fri | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.8° 13:30 | 8.94 | 51% | 68.1° |
| 2035-03-17 Sat | 1 | — | unknown | — | 89.7° 13:25 | 8.88 | 62% | 79.1° |
| 2035-03-18 Sun | 1 | — | unknown | — | 89.5° 13:20 | 8.83 | 73% | 90.2° |
| 2035-03-19 Mon | 1 | — | unknown | — | 89.6° 13:20 | 8.78 | 82% | 101.3° |
| 2035-03-20 Tue | 1 | — | unknown | — | 89.7° 13:15 | 8.73 | 90% | 112.0° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-02-19&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.