← 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. |
|---|---|---|---|---|---|---|---|---|
| 2036-06-11 Wed | 18 | — | unknown | 03:10–03:40 (good, 0.5 h) | 89.7° 08:40 | 4.5 | 91% | 90.8° |
| 2036-06-12 Thu | 18 | — | unknown | 03:25–03:40 (good, 0.25 h) | 89.5° 08:35 | 4.49 | 85% | 81.5° |
| 2036-06-13 Fri | 18 | — | unknown | 03:35–03:40 (good, 0.08 h) | 89.6° 08:35 | 4.47 | 78% | 72.3° |
| 2036-06-14 Sat | 19 | — | unknown | 03:25–03:40 (good, 0.25 h) | 89.8° 08:30 | 4.46 | 70% | 63.5° |
| 2036-06-15 Sun | 21 | — | unknown | 02:50–03:40 (good, 0.83 h) | 89.8° 08:25 | 4.45 | 61% | 55.2° |
| 2036-06-16 Mon | 24 | — | unknown | 02:40–03:40 (good, 1.0 h) | 89.6° 08:20 | 4.44 | 51% | 47.8° |
| 2036-06-17 Tue | 28 | — | unknown | 02:30–03:40 (good, 1.17 h) | 89.5° 08:20 | 4.43 | 41% | 41.9° |
| 2036-06-18 Wed | 36 | — | unknown | 02:10–03:40 (good, 1.5 h) | 89.7° 08:15 | 4.43 | 31% | 38.6° |
| 2036-06-19 Thu | 40 | — | unknown | 02:05–03:40 (good, 1.58 h) | 89.8° 08:10 | 4.42 | 22% | 38.7° |
| 2036-06-20 Fri | 44 | — | unknown | 02:00–03:40 (good, 1.67 h) | 89.7° 08:05 | 4.42 | 14% | 42.5° |
| 2036-06-21 Sat | 46 | — | unknown | 02:00–03:40 (good, 1.67 h) | 89.6° 08:00 | 4.42 | 7% | 49.6° |
| 2036-06-22 Sun | 48 | — | unknown | 01:55–03:40 (good, 1.75 h) | 89.6° 08:00 | 4.43 | 2% | 58.8° |
| 2036-06-23 Mon | 50 | — | unknown | 01:50–03:40 (good, 1.83 h) | 89.7° 07:55 | 4.43 | 0% | 69.5° |
| 2036-06-24 Tue | 51 | — | unknown | 01:45–03:40 (good, 1.92 h) | 89.8° 07:50 | 4.44 | 1% | 81.0° |
| 2036-06-25 Wed | 53 | — | unknown | 01:40–03:40 (good, 2.0 h) | 89.7° 07:45 | 4.45 | 5% | 92.8° |
| 2036-06-26 Thu | 55 | — | unknown | 01:40–03:40 (good, 2.0 h) | 89.5° 07:40 | 4.46 | 11% | 104.5° |
| 2036-06-27 Fri | 57 | — | unknown | 01:35–03:40 (good, 2.08 h) | 89.6° 07:40 | 4.48 | 20% | 115.5° |
| 2036-06-28 Sat | 59 | — | unknown | 01:30–03:40 (good, 2.17 h) | 89.7° 07:35 | 4.49 | 30% | 125.5° |
| 2036-06-29 Sun | 61 | — | unknown | 01:25–03:45 (good, 2.33 h) | 89.8° 07:30 | 4.51 | 41% | 133.8° |
| 2036-06-30 Mon | 63 | — | unknown | 01:25–03:45 (good, 2.33 h) | 89.6° 07:25 | 4.53 | 52% | 139.5° |
| 2036-07-01 Tue | 64 | — | unknown | 01:25–03:45 (good, 2.33 h) | 89.5° 07:25 | 4.55 | 63% | 141.8° |
| 2036-07-02 Wed | 65 | — | unknown | 01:20–03:45 (good, 2.42 h) | 89.7° 07:20 | 4.57 | 72% | 140.3° |
| 2036-07-03 Thu | 66 | — | unknown | 01:20–03:45 (good, 2.42 h) | 89.8° 07:15 | 4.6 | 81% | 135.6° |
| 2036-07-04 Fri | 66 | — | unknown | 01:15–03:45 (good, 2.5 h) | 89.7° 07:10 | 4.63 | 88% | 128.7° |
| 2036-07-05 Sat | 62 | — | unknown | 01:15–03:50 (good, 2.58 h) | 89.6° 07:05 | 4.65 | 94% | 120.6° |
| 2036-07-06 Sun | 58 | — | unknown | 01:15–03:50 (good, 2.58 h) | 89.6° 07:05 | 4.69 | 98% | 111.8° |
| 2036-07-07 Mon | 52 | — | unknown | 01:20–03:50 (good, 2.5 h) | 89.7° 07:00 | 4.72 | 100% | 102.7° |
| 2036-07-08 Tue | 46 | — | unknown | 01:30–03:50 (good, 2.33 h) | 89.8° 06:55 | 4.75 | 100% | 93.3° |
| 2036-07-09 Wed | 42 | — | unknown | 02:15–03:55 (good, 1.67 h) | 89.7° 06:50 | 4.79 | 98% | 84.0° |
| 2036-07-10 Thu | 38 | — | unknown | 03:00–03:55 (good, 0.92 h) | 89.5° 06:45 | 4.82 | 95% | 74.8° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2036-06-11&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.