← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-08-24 Fri | 1 | — | unknown | — | 42.9° 08:45 | 7.15 | 66% | 44.8° |
| 2035-08-25 Sat | 1 | — | unknown | — | 42.9° 08:40 | 7.21 | 55% | 34.2° |
| 2035-08-26 Sun | 2 | — | unknown | 04:55–05:05 (marginal, 0.17 h) | 42.9° 08:35 | 7.26 | 44% | 26.1° |
| 2035-08-27 Mon | 3 | — | unknown | 04:50–05:05 (marginal, 0.25 h) | 42.9° 08:35 | 7.32 | 32% | 23.8° |
| 2035-08-28 Tue | 4 | — | unknown | 04:45–05:05 (marginal, 0.33 h) | 42.9° 08:30 | 7.38 | 22% | 28.9° |
| 2035-08-29 Wed | 7 | — | unknown | 04:40–05:10 (marginal, 0.5 h) | 42.9° 08:25 | 7.43 | 13% | 38.8° |
| 2035-08-30 Thu | 8 | — | unknown | 04:35–05:45 (marginal, 1.17 h) | 42.9° 08:20 | 7.49 | 6% | 50.7° |
| 2035-08-31 Fri | 10 | — | unknown | 05:05–05:10 (good, 0.08 h) | 42.9° 08:15 | 7.55 | 2% | 63.4° |
| 2035-09-01 Sat | 11 | — | unknown | 05:00–05:10 (good, 0.17 h) | 42.9° 08:15 | 7.6 | 0% | 76.4° |
| 2035-09-02 Sun | 14 | — | unknown | 04:55–05:15 (good, 0.33 h) | 42.9° 08:10 | 7.66 | 1% | 89.2° |
| 2035-09-03 Mon | 15 | — | unknown | 04:50–05:15 (good, 0.42 h) | 42.9° 08:05 | 7.71 | 4% | 101.8° |
| 2035-09-04 Tue | 17 | — | unknown | 04:45–05:15 (good, 0.5 h) | 42.9° 08:00 | 7.77 | 10% | 113.9° |
| 2035-09-05 Wed | 18 | — | unknown | 04:45–05:15 (good, 0.5 h) | 42.9° 08:00 | 7.82 | 17% | 125.5° |
| 2035-09-06 Thu | 21 | — | unknown | 04:40–05:20 (good, 0.67 h) | 42.9° 07:55 | 7.88 | 25% | 136.1° |
| 2035-09-07 Fri | 22 | — | unknown | 04:35–05:20 (good, 0.75 h) | 42.9° 07:50 | 7.93 | 34% | 145.6° |
| 2035-09-08 Sat | 24 | — | unknown | 04:30–05:20 (good, 0.83 h) | 42.9° 07:45 | 7.99 | 43% | 152.9° |
| 2035-09-09 Sun | 25 | — | unknown | 04:30–05:20 (good, 0.83 h) | 42.9° 07:40 | 8.04 | 53% | 156.3° |
| 2035-09-10 Mon | 27 | — | unknown | 04:25–05:25 (good, 1.0 h) | 42.9° 07:40 | 8.1 | 62% | 154.4° |
| 2035-09-11 Tue | 29 | — | unknown | 04:20–05:25 (good, 1.08 h) | 42.9° 07:35 | 8.15 | 71% | 148.2° |
| 2035-09-12 Wed | 30 | — | unknown | 04:15–05:25 (good, 1.17 h) | 42.9° 07:30 | 8.2 | 80% | 139.5° |
| 2035-09-13 Thu | 32 | — | unknown | 04:10–05:25 (good, 1.25 h) | 42.9° 07:25 | 8.26 | 87% | 129.6° |
| 2035-09-14 Fri | 33 | — | unknown | 04:15–05:30 (good, 1.25 h) | 42.9° 07:20 | 8.31 | 93% | 118.8° |
| 2035-09-15 Sat | 27 | — | unknown | 04:20–05:30 (good, 1.17 h) | 42.9° 07:20 | 8.36 | 97% | 107.5° |
| 2035-09-16 Sun | 23 | — | unknown | 04:30–05:30 (good, 1.0 h) | 42.9° 07:15 | 8.42 | 100% | 95.9° |
| 2035-09-17 Mon | 19 | — | unknown | 05:25–05:30 (good, 0.08 h) | 42.9° 07:10 | 8.47 | 100% | 83.9° |
| 2035-09-18 Tue | 15 | — | unknown | 03:40–05:35 (marginal, 1.92 h) | 42.9° 07:05 | 8.52 | 98% | 71.7° |
| 2035-09-19 Wed | 12 | — | unknown | 03:50–05:35 (marginal, 1.75 h) | 42.9° 07:05 | 8.57 | 94% | 59.5° |
| 2035-09-20 Thu | 9 | — | unknown | 03:55–05:35 (marginal, 1.67 h) | 42.9° 07:00 | 8.62 | 87% | 47.6° |
| 2035-09-21 Fri | 9 | — | unknown | 03:50–05:35 (marginal, 1.75 h) | 42.9° 06:55 | 8.67 | 79% | 36.6° |
| 2035-09-22 Sat | 11 | — | unknown | 03:35–05:40 (marginal, 2.08 h) | 42.9° 06:50 | 8.73 | 69% | 27.7° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-08-24&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.