← 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. |
|---|---|---|---|---|---|---|---|---|
| 2045-02-22 Wed | 16 | — | unknown | 05:10–05:35 (good, 0.42 h) | 71.1° 10:10 | 9.94 | 32% | 89.7° |
| 2045-02-23 Thu | 18 | — | unknown | 05:05–05:35 (good, 0.5 h) | 71.1° 10:05 | 9.9 | 42% | 99.2° |
| 2045-02-24 Fri | 17 | — | unknown | 05:00–05:30 (good, 0.5 h) | 71.1° 10:00 | 9.85 | 53% | 108.7° |
| 2045-02-25 Sat | 19 | — | unknown | 04:55–05:30 (good, 0.58 h) | 71.1° 09:55 | 9.81 | 64% | 117.8° |
| 2045-02-26 Sun | 20 | — | unknown | 04:50–05:30 (good, 0.67 h) | 71.1° 09:55 | 9.76 | 74% | 125.9° |
| 2045-02-27 Mon | 19 | — | unknown | 04:55–05:25 (good, 0.5 h) | 71.1° 09:50 | 9.72 | 84% | 132.3° |
| 2045-02-28 Tue | 18 | — | unknown | 04:50–05:25 (good, 0.58 h) | 71.1° 09:45 | 9.67 | 92% | 135.7° |
| 2045-03-01 Wed | 18 | — | unknown | 04:50–05:25 (good, 0.58 h) | 71.1° 09:40 | 9.63 | 97% | 135.2° |
| 2045-03-02 Thu | 18 | — | unknown | 04:45–05:25 (good, 0.67 h) | 71.1° 09:40 | 9.58 | 100% | 131.0° |
| 2045-03-03 Fri | 19 | — | unknown | 04:45–05:20 (good, 0.58 h) | 71.1° 09:35 | 9.54 | 99% | 124.1° |
| 2045-03-04 Sat | 18 | — | unknown | 04:40–05:20 (good, 0.67 h) | 71.1° 09:30 | 9.49 | 96% | 115.4° |
| 2045-03-05 Sun | 18 | — | unknown | 04:40–05:20 (good, 0.67 h) | 71.1° 09:25 | 9.44 | 91% | 106.0° |
| 2045-03-06 Mon | 16 | — | unknown | 04:40–05:15 (good, 0.58 h) | 71.1° 09:20 | 9.4 | 84% | 96.3° |
| 2045-03-07 Tue | 17 | — | unknown | 04:40–05:15 (good, 0.58 h) | 71.1° 09:20 | 9.35 | 75% | 86.9° |
| 2045-03-08 Wed | 17 | — | unknown | 04:35–05:15 (good, 0.67 h) | 71.1° 09:15 | 9.3 | 66% | 77.7° |
| 2045-03-09 Thu | 18 | — | unknown | 04:25–05:10 (good, 0.75 h) | 71.1° 09:10 | 9.25 | 56% | 69.2° |
| 2045-03-10 Fri | 20 | — | unknown | 04:20–05:10 (good, 0.83 h) | 71.1° 09:05 | 9.2 | 46% | 61.4° |
| 2045-03-11 Sat | 22 | — | unknown | 04:10–05:10 (good, 1.0 h) | 71.1° 09:00 | 9.16 | 37% | 54.6° |
| 2045-03-12 Sun | 25 | — | unknown | 03:55–05:05 (good, 1.17 h) | 71.1° 09:00 | 9.11 | 28% | 49.1° |
| 2045-03-13 Mon | 30 | — | unknown | 03:55–05:05 (good, 1.17 h) | 71.1° 08:55 | 9.06 | 20% | 45.4° |
| 2045-03-14 Tue | 31 | — | unknown | 03:50–05:00 (good, 1.17 h) | 71.1° 08:50 | 9.01 | 13% | 44.0° |
| 2045-03-15 Wed | 32 | — | unknown | 03:45–05:00 (good, 1.25 h) | 71.1° 08:45 | 8.96 | 7% | 45.1° |
| 2045-03-16 Thu | 33 | — | unknown | 03:40–05:00 (good, 1.33 h) | 71.1° 08:45 | 8.91 | 3% | 48.7° |
| 2045-03-17 Fri | 34 | — | unknown | 03:35–04:55 (good, 1.33 h) | 71.1° 08:40 | 8.86 | 1% | 54.2° |
| 2045-03-18 Sat | 35 | — | unknown | 03:35–04:55 (good, 1.33 h) | 71.1° 08:35 | 8.8 | 0% | 61.2° |
| 2045-03-19 Sun | 36 | — | unknown | 03:30–04:55 (good, 1.42 h) | 71.1° 08:30 | 8.75 | 2% | 69.4° |
| 2045-03-20 Mon | 36 | — | unknown | 03:25–04:50 (good, 1.42 h) | 71.1° 08:25 | 8.7 | 5% | 78.2° |
| 2045-03-21 Tue | 38 | — | unknown | 03:20–04:50 (good, 1.5 h) | 71.1° 08:25 | 8.65 | 11% | 87.5° |
| 2045-03-22 Wed | 39 | — | unknown | 03:20–04:50 (good, 1.5 h) | 71.1° 08:20 | 8.6 | 18% | 97.1° |
| 2045-03-23 Thu | 39 | — | unknown | 03:15–04:45 (good, 1.5 h) | 71.1° 08:15 | 8.54 | 27% | 106.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2045-02-22&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.