← 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. |
|---|---|---|---|---|---|---|---|---|
| 2045-11-03 Fri | 0 | — | unknown | — | 50.1° 09:55 | 10.59 | 30% | 30.6° |
| 2045-11-04 Sat | 1 | — | unknown | — | 50.1° 09:55 | 10.62 | 20% | 17.3° |
| 2045-11-05 Sun | 1 | — | unknown | — | 50.1° 09:50 | 10.66 | 11% | 8.5° |
| 2045-11-06 Mon | 1 | — | unknown | — | 50.1° 09:45 | 10.69 | 5% | 15.8° |
| 2045-11-07 Tue | 2 | — | unknown | 05:25–05:30 (marginal, 0.08 h) | 50.1° 09:40 | 10.72 | 1% | 28.8° |
| 2045-11-08 Wed | 3 | — | unknown | 05:50–06:05 (marginal, 0.25 h) | 50.1° 09:35 | 10.76 | 0% | 42.2° |
| 2045-11-09 Thu | 4 | — | unknown | 05:45–06:05 (marginal, 0.33 h) | 50.1° 09:35 | 10.79 | 1% | 55.7° |
| 2045-11-10 Fri | 5 | — | unknown | 05:40–06:05 (marginal, 0.42 h) | 50.1° 09:30 | 10.82 | 5% | 68.8° |
| 2045-11-11 Sat | 6 | — | unknown | 05:10–05:35 (marginal, 0.42 h) | 50.1° 09:25 | 10.85 | 10% | 81.7° |
| 2045-11-12 Sun | 7 | — | unknown | 05:05–06:05 (marginal, 1.0 h) | 50.1° 09:20 | 10.88 | 17% | 94.2° |
| 2045-11-13 Mon | 9 | — | unknown | 05:30–05:35 (good, 0.08 h) | 50.1° 09:15 | 10.91 | 25% | 106.4° |
| 2045-11-14 Tue | 10 | — | unknown | 05:25–05:35 (good, 0.17 h) | 50.1° 09:15 | 10.94 | 34% | 118.4° |
| 2045-11-15 Wed | 12 | — | unknown | 05:25–05:40 (good, 0.25 h) | 50.1° 09:10 | 10.97 | 43% | 130.1° |
| 2045-11-16 Thu | 14 | — | unknown | 05:20–05:40 (good, 0.33 h) | 50.1° 09:05 | 11.0 | 53% | 141.7° |
| 2045-11-17 Fri | 16 | — | unknown | 05:15–05:40 (good, 0.42 h) | 50.1° 09:00 | 11.03 | 62% | 153.0° |
| 2045-11-18 Sat | 17 | — | unknown | 05:10–05:40 (good, 0.5 h) | 50.1° 09:00 | 11.05 | 71% | 163.9° |
| 2045-11-19 Sun | 19 | — | unknown | 05:05–05:40 (good, 0.58 h) | 50.1° 08:55 | 11.08 | 79% | 171.3° |
| 2045-11-20 Mon | 21 | — | unknown | 05:05–05:45 (good, 0.67 h) | 50.1° 08:50 | 11.1 | 86% | 166.4° |
| 2045-11-21 Tue | 22 | — | unknown | 05:05–05:45 (good, 0.67 h) | 50.1° 08:45 | 11.13 | 93% | 155.3° |
| 2045-11-22 Wed | 20 | — | unknown | 05:05–05:45 (good, 0.67 h) | 50.1° 08:40 | 11.15 | 97% | 142.9° |
| 2045-11-23 Thu | 20 | — | unknown | 05:00–05:45 (good, 0.75 h) | 50.1° 08:40 | 11.18 | 99% | 130.0° |
| 2045-11-24 Fri | 20 | — | unknown | 05:00–05:45 (good, 0.75 h) | 50.1° 08:35 | 11.2 | 100% | 116.7° |
| 2045-11-25 Sat | 17 | — | unknown | 05:10–05:50 (good, 0.67 h) | 50.1° 08:30 | 11.22 | 97% | 103.1° |
| 2045-11-26 Sun | 14 | — | unknown | 04:20–05:50 (marginal, 1.5 h) | 50.1° 08:25 | 11.24 | 93% | 89.3° |
| 2045-11-27 Mon | 12 | — | unknown | 04:20–05:50 (marginal, 1.5 h) | 50.1° 08:20 | 11.26 | 86% | 75.4° |
| 2045-11-28 Tue | 11 | — | unknown | 04:20–05:50 (marginal, 1.5 h) | 50.1° 08:20 | 11.28 | 77% | 61.4° |
| 2045-11-29 Wed | 12 | — | unknown | 04:15–05:50 (marginal, 1.58 h) | 50.1° 08:15 | 11.3 | 67% | 47.4° |
| 2045-11-30 Thu | 14 | — | unknown | 04:05–05:50 (marginal, 1.75 h) | 50.1° 08:10 | 11.32 | 56% | 33.6° |
| 2045-12-01 Fri | 19 | — | unknown | 05:50–05:55 (good, 0.08 h) | 50.1° 08:05 | 11.34 | 44% | 20.4° |
| 2045-12-02 Sat | 25 | — | unknown | 04:35–05:55 (good, 1.33 h) | 50.1° 08:05 | 11.35 | 33% | 9.7° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2045-11-03&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.