← 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. |
|---|---|---|---|---|---|---|---|---|
| 2036-03-01 Sat | 28 | — | unknown | 04:25–05:25 (good, 1.0 h) | 87.3° 10:40 | 9.62 | 14% | 72.0° |
| 2036-03-02 Sun | 28 | — | unknown | 04:20–05:20 (good, 1.0 h) | 87.3° 10:35 | 9.57 | 22% | 78.2° |
| 2036-03-03 Mon | 29 | — | unknown | 04:15–05:20 (good, 1.08 h) | 87.3° 10:30 | 9.53 | 31% | 85.0° |
| 2036-03-04 Tue | 30 | — | unknown | 04:10–05:20 (good, 1.17 h) | 87.3° 10:25 | 9.48 | 42% | 92.1° |
| 2036-03-05 Wed | 31 | — | unknown | 04:10–05:20 (good, 1.17 h) | 87.3° 10:25 | 9.44 | 53% | 99.2° |
| 2036-03-06 Thu | 32 | — | unknown | 04:05–05:15 (good, 1.17 h) | 87.3° 10:20 | 9.39 | 64% | 106.1° |
| 2036-03-07 Fri | 32 | — | unknown | 04:00–05:15 (good, 1.25 h) | 87.3° 10:15 | 9.34 | 75% | 112.3° |
| 2036-03-08 Sat | 32 | — | unknown | 04:05–05:15 (good, 1.17 h) | 87.3° 10:10 | 9.29 | 84% | 117.3° |
| 2036-03-09 Sun | 29 | — | unknown | 04:00–05:10 (good, 1.17 h) | 87.3° 10:05 | 9.24 | 92% | 120.6° |
| 2036-03-10 Mon | 28 | — | unknown | 04:00–05:10 (good, 1.17 h) | 87.3° 10:05 | 9.2 | 97% | 121.7° |
| 2036-03-11 Tue | 28 | — | unknown | 04:00–05:05 (good, 1.08 h) | 87.3° 10:00 | 9.15 | 100% | 120.5° |
| 2036-03-12 Wed | 28 | — | unknown | 03:55–05:05 (good, 1.17 h) | 87.3° 09:55 | 9.1 | 100% | 117.3° |
| 2036-03-13 Thu | 27 | — | unknown | 03:55–05:05 (good, 1.17 h) | 87.3° 09:50 | 9.05 | 97% | 112.4° |
| 2036-03-14 Fri | 25 | — | unknown | 03:55–05:00 (good, 1.08 h) | 87.3° 09:45 | 9.0 | 92% | 106.5° |
| 2036-03-15 Sat | 25 | — | unknown | 03:55–05:00 (good, 1.08 h) | 87.3° 09:45 | 8.95 | 85% | 100.1° |
| 2036-03-16 Sun | 25 | — | unknown | 03:50–05:00 (good, 1.17 h) | 87.3° 09:40 | 8.9 | 77% | 93.4° |
| 2036-03-17 Mon | 26 | — | unknown | 03:45–04:55 (good, 1.17 h) | 87.3° 09:35 | 8.85 | 68% | 86.8° |
| 2036-03-18 Tue | 28 | — | unknown | 03:40–04:55 (good, 1.25 h) | 87.3° 09:30 | 8.8 | 58% | 80.5° |
| 2036-03-19 Wed | 30 | — | unknown | 03:30–04:55 (good, 1.42 h) | 87.3° 09:30 | 8.74 | 48% | 74.6° |
| 2036-03-20 Thu | 32 | — | unknown | 03:20–04:50 (good, 1.5 h) | 87.3° 09:25 | 8.69 | 39% | 69.3° |
| 2036-03-21 Fri | 37 | — | unknown | 03:05–04:50 (good, 1.75 h) | 87.3° 09:20 | 8.64 | 30% | 64.8° |
| 2036-03-22 Sat | 41 | — | unknown | 03:00–04:45 (good, 1.75 h) | 87.3° 09:15 | 8.59 | 22% | 61.3° |
| 2036-03-23 Sun | 45 | — | unknown | 02:55–04:45 (good, 1.83 h) | 87.3° 09:10 | 8.54 | 14% | 59.1° |
| 2036-03-24 Mon | 46 | — | unknown | 02:55–04:45 (good, 1.83 h) | 87.3° 09:10 | 8.48 | 8% | 58.3° |
| 2036-03-25 Tue | 46 | — | unknown | 02:50–04:40 (good, 1.83 h) | 87.3° 09:05 | 8.43 | 4% | 59.1° |
| 2036-03-26 Wed | 48 | — | unknown | 02:45–04:40 (good, 1.92 h) | 87.3° 09:00 | 8.38 | 1% | 61.5° |
| 2036-03-27 Thu | 49 | — | unknown | 02:40–04:40 (good, 2.0 h) | 87.3° 08:55 | 8.32 | 0% | 65.3° |
| 2036-03-28 Fri | 50 | — | unknown | 02:35–04:35 (good, 2.0 h) | 87.3° 08:50 | 8.27 | 1% | 70.4° |
| 2036-03-29 Sat | 50 | — | unknown | 02:35–05:35 (good, 2.0 h) | 87.3° 09:50 | 8.21 | 5% | 76.5° |
| 2036-03-30 Sun | 50 | — | unknown | 03:30–05:30 (good, 2.0 h) | 87.3° 09:45 | 8.16 | 10% | 83.2° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2036-03-01&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.