← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-10-31 Wed | 0 | — | unknown | — | 50.2° 10:10 | 10.46 | 1% | 41.5° |
| 2035-11-01 Thu | 0 | — | unknown | — | 50.2° 10:05 | 10.49 | 3% | 53.9° |
| 2035-11-02 Fri | 0 | — | unknown | — | 50.2° 10:00 | 10.53 | 8% | 66.1° |
| 2035-11-03 Sat | 1 | — | unknown | — | 50.2° 10:00 | 10.57 | 14% | 78.1° |
| 2035-11-04 Sun | 1 | — | unknown | — | 50.2° 09:55 | 10.6 | 21% | 90.0° |
| 2035-11-05 Mon | 1 | — | unknown | — | 50.2° 09:50 | 10.64 | 29% | 101.8° |
| 2035-11-06 Tue | 1 | — | unknown | — | 50.2° 09:45 | 10.67 | 38% | 113.6° |
| 2035-11-07 Wed | 1 | — | unknown | 05:55–06:00 (marginal, 0.08 h) | 50.2° 09:45 | 10.7 | 47% | 125.5° |
| 2035-11-08 Thu | 3 | — | unknown | 05:50–06:00 (marginal, 0.17 h) | 50.2° 09:40 | 10.74 | 56% | 137.6° |
| 2035-11-09 Fri | 3 | — | unknown | 05:50–06:05 (marginal, 0.25 h) | 50.2° 09:35 | 10.77 | 66% | 149.9° |
| 2035-11-10 Sat | 4 | — | unknown | 05:15–05:30 (marginal, 0.25 h) | 50.2° 09:30 | 10.8 | 75% | 162.5° |
| 2035-11-11 Sun | 6 | — | unknown | 05:10–05:35 (marginal, 0.42 h) | 50.2° 09:25 | 10.83 | 84% | 175.2° |
| 2035-11-12 Mon | 7 | — | unknown | 05:10–06:05 (marginal, 0.92 h) | 50.2° 09:25 | 10.86 | 91% | 170.6° |
| 2035-11-13 Tue | 8 | — | unknown | 05:30–05:35 (good, 0.08 h) | 50.2° 09:20 | 10.89 | 96% | 156.9° |
| 2035-11-14 Wed | 8 | — | unknown | 05:00–06:10 (marginal, 1.17 h) | 50.2° 09:15 | 10.92 | 99% | 142.6° |
| 2035-11-15 Thu | 9 | — | unknown | 04:55–06:10 (marginal, 1.25 h) | 50.2° 09:10 | 10.95 | 100% | 128.0° |
| 2035-11-16 Fri | 9 | — | unknown | 05:35–05:40 (good, 0.08 h) | 50.2° 09:05 | 10.98 | 97% | 113.2° |
| 2035-11-17 Sat | 8 | — | unknown | 04:50–05:40 (marginal, 0.83 h) | 50.2° 09:05 | 11.01 | 92% | 98.3° |
| 2035-11-18 Sun | 8 | — | unknown | 04:50–05:40 (marginal, 0.83 h) | 50.2° 09:00 | 11.04 | 84% | 83.6° |
| 2035-11-19 Mon | 7 | — | unknown | 04:50–05:40 (marginal, 0.83 h) | 50.2° 08:55 | 11.06 | 75% | 68.9° |
| 2035-11-20 Tue | 8 | — | unknown | 04:50–05:40 (marginal, 0.83 h) | 50.2° 08:50 | 11.09 | 64% | 54.6° |
| 2035-11-21 Wed | 9 | — | unknown | 04:40–05:45 (marginal, 1.08 h) | 50.2° 08:50 | 11.11 | 53% | 40.6° |
| 2035-11-22 Thu | 11 | — | unknown | 04:30–05:45 (marginal, 1.25 h) | 50.2° 08:45 | 11.14 | 42% | 26.8° |
| 2035-11-23 Fri | 15 | — | unknown | 05:15–05:45 (good, 0.5 h) | 50.2° 08:40 | 11.16 | 32% | 13.5° |
| 2035-11-24 Sat | 20 | — | unknown | 05:00–05:45 (good, 0.75 h) | 50.2° 08:35 | 11.19 | 22% | 1.9° |
| 2035-11-25 Sun | 24 | — | unknown | 04:50–05:45 (good, 0.92 h) | 50.2° 08:30 | 11.21 | 15% | 12.9° |
| 2035-11-26 Mon | 27 | — | unknown | 04:40–05:50 (good, 1.17 h) | 50.2° 08:30 | 11.23 | 8% | 25.5° |
| 2035-11-27 Tue | 31 | — | unknown | 04:35–05:50 (good, 1.25 h) | 50.2° 08:25 | 11.25 | 4% | 38.0° |
| 2035-11-28 Wed | 33 | — | unknown | 04:35–05:50 (good, 1.25 h) | 50.2° 08:20 | 11.27 | 1% | 50.4° |
| 2035-11-29 Thu | 35 | — | unknown | 04:30–05:50 (good, 1.33 h) | 50.2° 08:15 | 11.29 | 0% | 62.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-10-31&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.