← 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. |
|---|---|---|---|---|---|---|---|---|
| 2033-03-15 Tue | 26 | — | unknown | 03:55–05:00 (good, 1.08 h) | 71.1° 08:45 | 8.96 | 100% | 123.2° |
| 2033-03-16 Wed | 25 | — | unknown | 03:55–05:00 (good, 1.08 h) | 71.1° 08:45 | 8.91 | 99% | 114.6° |
| 2033-03-17 Thu | 22 | — | unknown | 03:55–04:55 (good, 1.0 h) | 71.1° 08:40 | 8.86 | 97% | 105.5° |
| 2033-03-18 Fri | 21 | — | unknown | 04:00–04:55 (good, 0.92 h) | 71.1° 08:35 | 8.81 | 93% | 96.1° |
| 2033-03-19 Sat | 20 | — | unknown | 04:10–04:55 (good, 0.75 h) | 71.1° 08:30 | 8.76 | 87% | 86.5° |
| 2033-03-20 Sun | 19 | — | unknown | 04:20–04:50 (good, 0.5 h) | 71.1° 08:25 | 8.71 | 80% | 76.9° |
| 2033-03-21 Mon | 19 | — | unknown | 04:20–04:50 (good, 0.5 h) | 71.1° 08:25 | 8.65 | 71% | 67.3° |
| 2033-03-22 Tue | 21 | — | unknown | 03:55–04:50 (good, 0.92 h) | 71.1° 08:20 | 8.6 | 62% | 58.1° |
| 2033-03-23 Wed | 23 | — | unknown | 03:35–04:45 (good, 1.17 h) | 71.1° 08:15 | 8.55 | 52% | 49.6° |
| 2033-03-24 Thu | 26 | — | unknown | 03:25–04:45 (good, 1.33 h) | 71.1° 08:10 | 8.5 | 41% | 42.4° |
| 2033-03-25 Fri | 31 | — | unknown | 03:05–04:40 (good, 1.58 h) | 71.1° 08:05 | 8.44 | 30% | 37.9° |
| 2033-03-26 Sat | 37 | — | unknown | 04:00–05:40 (good, 1.67 h) | 71.1° 09:05 | 8.39 | 20% | 37.5° |
| 2033-03-27 Sun | 42 | — | unknown | 04:00–05:40 (good, 1.67 h) | 71.1° 09:00 | 8.34 | 12% | 41.6° |
| 2033-03-28 Mon | 43 | — | unknown | 03:55–05:35 (good, 1.67 h) | 71.1° 08:55 | 8.28 | 5% | 49.4° |
| 2033-03-29 Tue | 44 | — | unknown | 03:50–05:35 (good, 1.75 h) | 71.1° 08:50 | 8.23 | 1% | 59.5° |
| 2033-03-30 Wed | 45 | — | unknown | 03:45–05:35 (good, 1.83 h) | 71.1° 08:50 | 8.18 | 0% | 70.9° |
| 2033-03-31 Thu | 46 | — | unknown | 03:40–05:30 (good, 1.83 h) | 71.1° 08:45 | 8.12 | 2% | 82.7° |
| 2033-04-01 Fri | 47 | — | unknown | 03:40–05:30 (good, 1.83 h) | 71.1° 08:40 | 8.07 | 7% | 94.6° |
| 2033-04-02 Sat | 47 | — | unknown | 03:35–05:25 (good, 1.83 h) | 71.1° 08:35 | 8.01 | 14% | 106.0° |
| 2033-04-03 Sun | 48 | — | unknown | 03:30–05:25 (good, 1.92 h) | 71.1° 08:30 | 7.96 | 23% | 116.6° |
| 2033-04-04 Mon | 50 | — | unknown | 03:25–05:25 (good, 2.0 h) | 71.1° 08:30 | 7.9 | 33% | 126.1° |
| 2033-04-05 Tue | 50 | — | unknown | 03:25–05:20 (good, 1.92 h) | 71.1° 08:25 | 7.84 | 43% | 134.1° |
| 2033-04-06 Wed | 52 | — | unknown | 03:20–05:20 (good, 2.0 h) | 71.1° 08:20 | 7.79 | 53% | 139.9° |
| 2033-04-07 Thu | 50 | — | unknown | 03:20–05:15 (good, 1.92 h) | 71.1° 08:15 | 7.73 | 63% | 142.7° |
| 2033-04-08 Fri | 51 | — | unknown | 03:15–05:15 (good, 2.0 h) | 71.1° 08:10 | 7.68 | 72% | 142.2° |
| 2033-04-09 Sat | 52 | — | unknown | 03:15–05:15 (good, 2.0 h) | 71.1° 08:10 | 7.62 | 80% | 138.6° |
| 2033-04-10 Sun | 50 | — | unknown | 03:10–05:10 (good, 2.0 h) | 71.1° 08:05 | 7.56 | 87% | 132.7° |
| 2033-04-11 Mon | 47 | — | unknown | 03:10–05:10 (good, 2.0 h) | 71.1° 08:00 | 7.51 | 93% | 125.3° |
| 2033-04-12 Tue | 44 | — | unknown | 03:05–05:05 (good, 2.0 h) | 71.1° 07:55 | 7.45 | 97% | 116.9° |
| 2033-04-13 Wed | 40 | — | unknown | 03:10–05:05 (good, 1.92 h) | 71.1° 07:50 | 7.39 | 99% | 108.0° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2033-03-15&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.