← 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. |
|---|---|---|---|---|---|---|---|---|
| 2042-11-02 Sun | 0 | — | unknown | — | 50.1° 10:00 | 10.54 | 68% | 75.9° |
| 2042-11-03 Mon | 0 | — | unknown | — | 50.1° 10:00 | 10.58 | 58% | 62.8° |
| 2042-11-04 Tue | 0 | — | unknown | — | 50.1° 09:55 | 10.61 | 47% | 50.0° |
| 2042-11-05 Wed | 1 | — | unknown | — | 50.1° 09:50 | 10.65 | 38% | 37.7° |
| 2042-11-06 Thu | 1 | — | unknown | — | 50.1° 09:45 | 10.68 | 28% | 25.6° |
| 2042-11-07 Fri | 2 | — | unknown | 05:25–05:30 (marginal, 0.08 h) | 50.1° 09:40 | 10.71 | 20% | 13.8° |
| 2042-11-08 Sat | 2 | — | unknown | 05:25–05:30 (marginal, 0.08 h) | 50.1° 09:40 | 10.75 | 13% | 3.9° |
| 2042-11-09 Sun | 3 | — | unknown | 05:50–06:05 (marginal, 0.25 h) | 50.1° 09:35 | 10.78 | 8% | 11.0° |
| 2042-11-10 Mon | 4 | — | unknown | 05:15–05:30 (marginal, 0.25 h) | 50.1° 09:30 | 10.81 | 3% | 22.5° |
| 2042-11-11 Tue | 6 | — | unknown | 05:10–05:35 (marginal, 0.42 h) | 50.1° 09:25 | 10.84 | 1% | 34.3° |
| 2042-11-12 Wed | 7 | — | unknown | 05:05–06:05 (marginal, 1.0 h) | 50.1° 09:20 | 10.87 | 0% | 46.1° |
| 2042-11-13 Thu | 8 | — | unknown | 05:30–05:35 (good, 0.08 h) | 50.1° 09:20 | 10.9 | 1% | 58.1° |
| 2042-11-14 Fri | 10 | — | unknown | 05:30–05:35 (good, 0.08 h) | 50.1° 09:15 | 10.93 | 4% | 70.2° |
| 2042-11-15 Sat | 11 | — | unknown | 05:25–05:35 (good, 0.17 h) | 50.1° 09:10 | 10.96 | 9% | 82.4° |
| 2042-11-16 Sun | 13 | — | unknown | 05:20–05:40 (good, 0.33 h) | 50.1° 09:05 | 10.99 | 15% | 94.9° |
| 2042-11-17 Mon | 14 | — | unknown | 05:15–05:40 (good, 0.42 h) | 50.1° 09:00 | 11.02 | 23% | 107.5° |
| 2042-11-18 Tue | 17 | — | unknown | 05:10–05:40 (good, 0.5 h) | 50.1° 09:00 | 11.05 | 32% | 120.3° |
| 2042-11-19 Wed | 19 | — | unknown | 05:10–05:40 (good, 0.5 h) | 50.1° 08:55 | 11.07 | 43% | 133.5° |
| 2042-11-20 Thu | 20 | — | unknown | 05:05–05:40 (good, 0.58 h) | 50.1° 08:50 | 11.1 | 54% | 146.9° |
| 2042-11-21 Fri | 22 | — | unknown | 05:00–05:45 (good, 0.75 h) | 50.1° 08:45 | 11.12 | 64% | 160.6° |
| 2042-11-22 Sat | 23 | — | unknown | 04:55–05:45 (good, 0.83 h) | 50.1° 08:45 | 11.15 | 75% | 173.9° |
| 2042-11-23 Sun | 25 | — | unknown | 04:50–05:45 (good, 0.92 h) | 50.1° 08:40 | 11.17 | 84% | 169.5° |
| 2042-11-24 Mon | 26 | — | unknown | 04:55–05:45 (good, 0.83 h) | 50.1° 08:35 | 11.19 | 92% | 155.1° |
| 2042-11-25 Tue | 23 | — | unknown | 04:55–05:45 (good, 0.83 h) | 50.1° 08:30 | 11.22 | 97% | 140.2° |
| 2042-11-26 Wed | 24 | — | unknown | 04:50–05:50 (good, 1.0 h) | 50.1° 08:25 | 11.24 | 100% | 125.2° |
| 2042-11-27 Thu | 21 | — | unknown | 04:55–05:50 (good, 0.92 h) | 50.1° 08:25 | 11.26 | 99% | 110.3° |
| 2042-11-28 Fri | 18 | — | unknown | 05:30–05:50 (good, 0.33 h) | 50.1° 08:20 | 11.28 | 96% | 95.7° |
| 2042-11-29 Sat | 14 | — | unknown | 04:10–05:50 (marginal, 1.67 h) | 50.1° 08:15 | 11.3 | 90% | 81.5° |
| 2042-11-30 Sun | 12 | — | unknown | 04:15–05:50 (marginal, 1.58 h) | 50.1° 08:10 | 11.32 | 83% | 67.7° |
| 2042-12-01 Mon | 12 | — | unknown | 04:10–05:55 (marginal, 1.75 h) | 50.1° 08:05 | 11.33 | 74% | 54.4° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2042-11-02&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.