← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-10-20 Fri | 0 | — | unknown | — | 50.2° 11:50 | 10.04 | 54% | 116.0° |
| 2034-10-21 Sat | 0 | — | unknown | — | 50.2° 11:50 | 10.08 | 64% | 128.6° |
| 2034-10-22 Sun | 0 | — | unknown | — | 50.2° 11:45 | 10.12 | 74% | 141.7° |
| 2034-10-23 Mon | 0 | — | unknown | — | 50.2° 11:40 | 10.16 | 83% | 155.1° |
| 2034-10-24 Tue | 0 | — | unknown | — | 50.2° 11:35 | 10.2 | 90% | 168.8° |
| 2034-10-25 Wed | 0 | — | unknown | — | 50.2° 11:35 | 10.24 | 96% | 174.6° |
| 2034-10-26 Thu | 0 | — | unknown | — | 50.2° 11:30 | 10.28 | 99% | 160.8° |
| 2034-10-27 Fri | 0 | — | unknown | — | 50.2° 11:25 | 10.32 | 100% | 145.9° |
| 2034-10-28 Sat | 0 | — | unknown | — | 50.2° 10:20 | 10.35 | 97% | 130.8° |
| 2034-10-29 Sun | 0 | — | unknown | — | 50.2° 10:15 | 10.39 | 91% | 115.8° |
| 2034-10-30 Mon | 0 | — | unknown | — | 50.2° 10:15 | 10.43 | 84% | 100.9° |
| 2034-10-31 Tue | 0 | — | unknown | — | 50.2° 10:10 | 10.47 | 74% | 86.4° |
| 2034-11-01 Wed | 0 | — | unknown | — | 50.2° 10:05 | 10.5 | 63% | 72.3° |
| 2034-11-02 Thu | 0 | — | unknown | — | 50.2° 10:00 | 10.54 | 52% | 58.6° |
| 2034-11-03 Fri | 0 | — | unknown | — | 50.2° 09:55 | 10.58 | 42% | 45.4° |
| 2034-11-04 Sat | 1 | — | unknown | — | 50.2° 09:55 | 10.61 | 32% | 32.5° |
| 2034-11-05 Sun | 1 | — | unknown | — | 50.2° 09:50 | 10.64 | 23% | 20.0° |
| 2034-11-06 Mon | 1 | — | unknown | — | 50.2° 09:45 | 10.68 | 15% | 8.1° |
| 2034-11-07 Tue | 2 | — | unknown | 05:25–05:30 (marginal, 0.08 h) | 50.2° 09:40 | 10.71 | 9% | 6.2° |
| 2034-11-08 Wed | 3 | — | unknown | 05:50–06:05 (marginal, 0.25 h) | 50.2° 09:40 | 10.75 | 4% | 17.5° |
| 2034-11-09 Thu | 4 | — | unknown | 05:45–06:05 (marginal, 0.33 h) | 50.2° 09:35 | 10.78 | 1% | 29.3° |
| 2034-11-10 Fri | 5 | — | unknown | 05:15–05:30 (marginal, 0.25 h) | 50.2° 09:30 | 10.81 | 0% | 41.1° |
| 2034-11-11 Sat | 6 | — | unknown | 05:10–05:35 (marginal, 0.42 h) | 50.2° 09:25 | 10.84 | 1% | 52.9° |
| 2034-11-12 Sun | 7 | — | unknown | 05:05–06:05 (marginal, 1.0 h) | 50.2° 09:20 | 10.87 | 3% | 64.7° |
| 2034-11-13 Mon | 8 | — | unknown | 05:30–05:35 (good, 0.08 h) | 50.2° 09:20 | 10.9 | 7% | 76.5° |
| 2034-11-14 Tue | 10 | — | unknown | 05:25–05:35 (good, 0.17 h) | 50.2° 09:15 | 10.93 | 13% | 88.4° |
| 2034-11-15 Wed | 11 | — | unknown | 05:25–05:35 (good, 0.17 h) | 50.2° 09:10 | 10.96 | 20% | 100.3° |
| 2034-11-16 Thu | 14 | — | unknown | 05:20–05:40 (good, 0.33 h) | 50.2° 09:05 | 10.99 | 28% | 112.4° |
| 2034-11-17 Fri | 15 | — | unknown | 05:15–05:40 (good, 0.42 h) | 50.2° 09:00 | 11.02 | 38% | 124.7° |
| 2034-11-18 Sat | 17 | — | unknown | 05:10–05:40 (good, 0.5 h) | 50.2° 09:00 | 11.04 | 47% | 137.3° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-10-20&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.