← 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. |
|---|---|---|---|---|---|---|---|---|
| 2033-04-28 Thu | 72 | — | unknown | 01:50–04:35 (good, 2.75 h) | 71.1° 06:55 | 6.52 | 0% | 89.2° |
| 2033-04-29 Fri | 73 | — | unknown | 01:50–04:35 (good, 2.75 h) | 71.1° 06:50 | 6.46 | 1% | 100.9° |
| 2033-04-30 Sat | 75 | — | unknown | 01:45–04:35 (good, 2.83 h) | 71.1° 06:45 | 6.4 | 5% | 112.1° |
| 2033-05-01 Sun | 75 | — | unknown | 01:40–04:30 (good, 2.83 h) | 71.1° 06:40 | 6.35 | 11% | 122.4° |
| 2033-05-02 Mon | 76 | — | unknown | 01:35–04:30 (good, 2.92 h) | 71.1° 06:40 | 6.29 | 18% | 131.3° |
| 2033-05-03 Tue | 77 | — | unknown | 01:35–04:25 (good, 2.83 h) | 71.1° 06:35 | 6.23 | 27% | 138.1° |
| 2033-05-04 Wed | 78 | — | unknown | 01:30–04:25 (good, 2.92 h) | 71.1° 06:30 | 6.17 | 37% | 142.1° |
| 2033-05-05 Thu | 80 | — | unknown | 01:30–04:25 (good, 2.92 h) | 71.1° 06:25 | 6.12 | 46% | 142.6° |
| 2033-05-06 Fri | 79 | — | unknown | 01:25–04:20 (good, 2.92 h) | 71.1° 06:20 | 6.06 | 56% | 139.9° |
| 2033-05-07 Sat | 79 | — | unknown | 01:25–04:20 (good, 2.92 h) | 71.1° 06:20 | 6.0 | 66% | 134.6° |
| 2033-05-08 Sun | 80 | — | unknown | 01:20–04:20 (good, 3.0 h) | 71.1° 06:15 | 5.95 | 74% | 127.5° |
| 2033-05-09 Mon | 79 | — | unknown | 01:20–04:15 (good, 2.92 h) | 71.1° 06:10 | 5.89 | 82% | 119.4° |
| 2033-05-10 Tue | 67 | — | unknown | 01:20–04:15 (good, 2.92 h) | 71.1° 06:05 | 5.83 | 89% | 110.6° |
| 2033-05-11 Wed | 60 | — | unknown | 01:25–04:15 (good, 2.83 h) | 71.1° 06:00 | 5.78 | 94% | 101.3° |
| 2033-05-12 Thu | 52 | — | unknown | 01:40–04:10 (good, 2.5 h) | 71.1° 06:00 | 5.72 | 98% | 91.7° |
| 2033-05-13 Fri | 45 | — | unknown | 02:25–04:10 (good, 1.75 h) | 71.1° 05:55 | 5.67 | 100% | 81.9° |
| 2033-05-14 Sat | 38 | — | unknown | 03:10–04:10 (good, 1.0 h) | 71.1° 05:50 | 5.62 | 100% | 72.2° |
| 2033-05-15 Sun | 32 | — | unknown | 04:00–04:05 (good, 0.08 h) | 71.1° 05:45 | 5.56 | 98% | 62.6° |
| 2033-05-16 Mon | 30 | — | unknown | 00:25–04:05 (marginal, 3.67 h) | 71.1° 05:45 | 5.51 | 94% | 53.6° |
| 2033-05-17 Tue | 30 | — | unknown | 00:20–04:05 (marginal, 3.75 h) | 71.1° 05:40 | 5.46 | 87% | 45.7° |
| 2033-05-18 Wed | 34 | — | unknown | 00:05–04:00 (marginal, 3.92 h) | 71.1° 05:35 | 5.41 | 80% | 39.9° |
| 2033-05-19 Thu | 52 | — | unknown | 01:35–04:00 (good, 2.42 h) | 71.1° 05:30 | 5.35 | 70% | 37.3° |
| 2033-05-20 Fri | 66 | — | unknown | 00:25–04:00 (good, 3.58 h) | 71.1° 05:25 | 5.3 | 60% | 38.8° |
| 2033-05-21 Sat | 78 | — | unknown | 00:20–04:00 (good, 3.67 h) | 71.1° 05:25 | 5.26 | 48% | 44.1° |
| 2033-05-22 Sun | 88 | — | unknown | 00:20–03:55 (good, 3.58 h) | 71.1° 05:20 | 5.21 | 37% | 52.3° |
| 2033-05-23 Mon | 97 | — | unknown | 00:15–03:55 (good, 3.67 h) | 71.1° 05:15 | 5.16 | 26% | 62.2° |
| 2033-05-24 Tue | 100 | — | unknown | 00:10–03:55 (good, 3.75 h) | 71.1° 05:10 | 5.11 | 16% | 73.2° |
| 2033-05-25 Wed | 100 | — | unknown | 00:05–03:55 (good, 3.83 h) | 71.1° 05:05 | 5.07 | 9% | 84.6° |
| 2033-05-26 Thu | 100 | — | unknown | 00:00–03:50 (good, 3.83 h) | 71.1° 05:05 | 5.02 | 3% | 96.2° |
| 2033-05-27 Fri | 100 | — | unknown | 00:00–03:50 (good, 3.83 h) | 71.1° 05:00 | 4.98 | 0% | 107.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2033-04-28&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.