← 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. |
|---|---|---|---|---|---|---|---|---|
| 2043-07-07 Tue | 1 | — | unknown | — | 72.6° 10:05 | 4.69 | 2% | 61.8° |
| 2043-07-08 Wed | 1 | — | unknown | — | 72.6° 10:00 | 4.73 | 6% | 75.9° |
| 2043-07-09 Thu | 1 | — | unknown | — | 72.5° 10:00 | 4.76 | 13% | 89.5° |
| 2043-07-10 Fri | 1 | — | unknown | — | 72.6° 09:55 | 4.8 | 21% | 102.7° |
| 2043-07-11 Sat | 1 | — | unknown | — | 72.6° 09:50 | 4.83 | 30% | 115.5° |
| 2043-07-12 Sun | 2 | — | unknown | 04:40–04:45 (marginal, 0.08 h) | 72.6° 09:45 | 4.87 | 39% | 127.9° |
| 2043-07-13 Mon | 2 | — | unknown | 04:35–04:45 (marginal, 0.17 h) | 72.5° 09:40 | 4.91 | 49% | 140.1° |
| 2043-07-14 Tue | 2 | — | unknown | 04:30–04:45 (marginal, 0.25 h) | 72.5° 09:40 | 4.95 | 58% | 152.1° |
| 2043-07-15 Wed | 3 | — | unknown | 04:30–04:50 (marginal, 0.33 h) | 72.6° 09:35 | 4.99 | 67% | 163.9° |
| 2043-07-16 Thu | 4 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 72.6° 09:30 | 5.04 | 76% | 175.8° |
| 2043-07-17 Fri | 4 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 72.6° 09:25 | 5.08 | 84% | 172.3° |
| 2043-07-18 Sat | 6 | — | unknown | 04:15–04:50 (marginal, 0.58 h) | 72.5° 09:20 | 5.13 | 90% | 160.3° |
| 2043-07-19 Sun | 7 | — | unknown | 04:10–04:55 (marginal, 0.75 h) | 72.5° 09:20 | 5.17 | 95% | 148.2° |
| 2043-07-20 Mon | 7 | — | unknown | 04:15–04:55 (marginal, 0.67 h) | 72.6° 09:15 | 5.22 | 98% | 135.9° |
| 2043-07-21 Tue | 9 | — | unknown | 03:35–04:10 (marginal, 0.58 h) | 72.6° 09:10 | 5.27 | 100% | 123.3° |
| 2043-07-22 Wed | 8 | — | unknown | 03:35–04:10 (marginal, 0.58 h) | 72.6° 09:05 | 5.32 | 99% | 110.5° |
| 2043-07-23 Thu | 8 | — | unknown | 03:30–04:10 (marginal, 0.67 h) | 72.5° 09:05 | 5.37 | 96% | 97.5° |
| 2043-07-24 Fri | 8 | — | unknown | 03:30–04:15 (marginal, 0.75 h) | 72.6° 09:00 | 5.42 | 92% | 84.3° |
| 2043-07-25 Sat | 7 | — | unknown | 03:30–04:15 (marginal, 0.75 h) | 72.6° 08:55 | 5.47 | 85% | 70.8° |
| 2043-07-26 Sun | 7 | — | unknown | 03:30–04:15 (marginal, 0.75 h) | 72.6° 08:50 | 5.52 | 76% | 57.2° |
| 2043-07-27 Mon | 7 | — | unknown | 03:25–04:15 (marginal, 0.83 h) | 72.5° 08:45 | 5.57 | 66% | 43.4° |
| 2043-07-28 Tue | 9 | — | unknown | 03:20–04:20 (marginal, 1.0 h) | 72.5° 08:45 | 5.62 | 55% | 29.4° |
| 2043-07-29 Wed | 13 | — | unknown | 03:05–04:20 (marginal, 1.25 h) | 72.6° 08:40 | 5.68 | 43% | 15.3° |
| 2043-07-30 Thu | 17 | — | unknown | 03:50–04:20 (good, 0.5 h) | 72.6° 08:35 | 5.73 | 32% | 1.1° |
| 2043-07-31 Fri | 22 | — | unknown | 03:35–04:25 (good, 0.83 h) | 72.6° 08:30 | 5.79 | 22% | 13.3° |
| 2043-08-01 Sat | 27 | — | unknown | 03:25–04:25 (good, 1.0 h) | 72.5° 08:25 | 5.84 | 13% | 27.7° |
| 2043-08-02 Sun | 31 | — | unknown | 03:15–04:25 (good, 1.17 h) | 72.5° 08:25 | 5.9 | 6% | 42.1° |
| 2043-08-03 Mon | 35 | — | unknown | 03:15–04:30 (good, 1.25 h) | 72.6° 08:20 | 5.95 | 2% | 56.3° |
| 2043-08-04 Tue | 37 | — | unknown | 03:10–04:30 (good, 1.33 h) | 72.6° 08:15 | 6.01 | 0% | 70.4° |
| 2043-08-05 Wed | 38 | — | unknown | 03:05–04:30 (good, 1.42 h) | 72.6° 08:10 | 6.06 | 1% | 84.2° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2043-07-07&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.