← 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. |
|---|---|---|---|---|---|---|---|---|
| 2033-06-12 Sun | 3 | — | unknown | 04:10–04:30 (marginal, 0.33 h) | 79.1° 09:30 | 4.49 | 100% | 126.7° |
| 2033-06-13 Mon | 4 | — | unknown | 04:10–04:30 (marginal, 0.33 h) | 79.1° 09:25 | 4.48 | 99% | 114.6° |
| 2033-06-14 Tue | 4 | — | unknown | 03:25–03:40 (marginal, 0.25 h) | 79.1° 09:20 | 4.46 | 95% | 102.1° |
| 2033-06-15 Wed | 4 | — | unknown | 03:20–03:40 (marginal, 0.33 h) | 79.1° 09:15 | 4.45 | 90% | 89.3° |
| 2033-06-16 Thu | 4 | — | unknown | 03:20–03:40 (marginal, 0.33 h) | 79.1° 09:15 | 4.44 | 82% | 76.4° |
| 2033-06-17 Fri | 4 | — | unknown | 03:20–03:40 (marginal, 0.33 h) | 79.1° 09:10 | 4.43 | 73% | 63.4° |
| 2033-06-18 Sat | 5 | — | unknown | 03:15–03:40 (marginal, 0.42 h) | 79.1° 09:05 | 4.43 | 62% | 50.6° |
| 2033-06-19 Sun | 6 | — | unknown | 03:05–03:40 (marginal, 0.58 h) | 79.1° 09:00 | 4.42 | 51% | 38.4° |
| 2033-06-20 Mon | 8 | — | unknown | 03:00–03:40 (marginal, 0.67 h) | 79.1° 09:00 | 4.42 | 39% | 27.7° |
| 2033-06-21 Tue | 10 | — | unknown | 03:00–04:30 (marginal, 1.5 h) | 79.1° 08:55 | 4.42 | 28% | 21.1° |
| 2033-06-22 Wed | 13 | — | unknown | 03:30–03:40 (good, 0.17 h) | 79.1° 08:50 | 4.43 | 19% | 22.5° |
| 2033-06-23 Thu | 17 | — | unknown | 03:20–03:40 (good, 0.33 h) | 79.1° 08:45 | 4.43 | 11% | 30.8° |
| 2033-06-24 Fri | 19 | — | unknown | 03:15–03:40 (good, 0.42 h) | 79.1° 08:40 | 4.44 | 5% | 42.0° |
| 2033-06-25 Sat | 21 | — | unknown | 03:10–03:40 (good, 0.5 h) | 79.1° 08:40 | 4.45 | 1% | 54.2° |
| 2033-06-26 Sun | 22 | — | unknown | 03:05–03:40 (good, 0.58 h) | 79.1° 08:35 | 4.46 | 0% | 66.6° |
| 2033-06-27 Mon | 23 | — | unknown | 03:05–03:40 (good, 0.58 h) | 79.1° 08:30 | 4.47 | 2% | 78.9° |
| 2033-06-28 Tue | 25 | — | unknown | 03:00–03:40 (good, 0.67 h) | 79.1° 08:25 | 4.49 | 5% | 91.1° |
| 2033-06-29 Wed | 27 | — | unknown | 02:55–03:40 (good, 0.75 h) | 79.1° 08:20 | 4.5 | 10% | 102.9° |
| 2033-06-30 Thu | 29 | — | unknown | 02:50–03:45 (good, 0.92 h) | 79.1° 08:20 | 4.52 | 17% | 114.4° |
| 2033-07-01 Fri | 30 | — | unknown | 02:45–03:45 (good, 1.0 h) | 79.1° 08:15 | 4.54 | 25% | 125.5° |
| 2033-07-02 Sat | 31 | — | unknown | 02:45–03:45 (good, 1.0 h) | 79.1° 08:10 | 4.57 | 33% | 136.1° |
| 2033-07-03 Sun | 33 | — | unknown | 02:40–03:45 (good, 1.08 h) | 79.1° 08:05 | 4.59 | 43% | 145.9° |
| 2033-07-04 Mon | 35 | — | unknown | 02:35–03:45 (good, 1.17 h) | 79.1° 08:05 | 4.62 | 52% | 154.1° |
| 2033-07-05 Tue | 37 | — | unknown | 02:30–03:50 (good, 1.33 h) | 79.1° 08:00 | 4.65 | 62% | 159.0° |
| 2033-07-06 Wed | 39 | — | unknown | 02:30–03:50 (good, 1.33 h) | 79.1° 07:55 | 4.68 | 71% | 157.8° |
| 2033-07-07 Thu | 40 | — | unknown | 02:30–03:50 (good, 1.33 h) | 79.1° 07:50 | 4.71 | 79% | 151.3° |
| 2033-07-08 Fri | 40 | — | unknown | 02:25–03:50 (good, 1.42 h) | 79.1° 07:45 | 4.74 | 87% | 141.7° |
| 2033-07-09 Sat | 37 | — | unknown | 02:25–03:50 (good, 1.42 h) | 79.1° 07:45 | 4.78 | 93% | 130.7° |
| 2033-07-10 Sun | 38 | — | unknown | 02:25–03:55 (good, 1.5 h) | 79.1° 07:40 | 4.81 | 97% | 118.8° |
| 2033-07-11 Mon | 33 | — | unknown | 02:25–03:55 (good, 1.5 h) | 79.1° 07:35 | 4.85 | 100% | 106.3° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2033-06-12&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.