← 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. |
|---|---|---|---|---|---|---|---|---|
| 2025-06-13 Fri | 0 | 0 | 0 | — | 72.5° 11:35 | 4.47 | 93% | 126.7° |
| 2025-06-14 Sat | 0 | 0 | 0 | — | 72.5° 11:35 | 4.46 | 87% | 113.9° |
| 2025-06-15 Sun | 0 | 0 | 0 | — | 72.5° 11:30 | 4.45 | 79% | 100.8° |
| 2025-06-16 Mon | 0 | 0 | 0 | — | 72.5° 11:25 | 4.44 | 70% | 87.6° |
| 2025-06-17 Tue | 0 | 0 | 0 | — | 72.5° 11:20 | 4.43 | 60% | 74.0° |
| 2025-06-18 Wed | 0 | 0 | 0 | — | 72.5° 11:20 | 4.43 | 49% | 60.3° |
| 2025-06-19 Thu | 0 | 0 | 0 | — | 72.5° 11:15 | 4.42 | 37% | 46.2° |
| 2025-06-20 Fri | 0 | 0 | 0 | — | 72.5° 11:10 | 4.42 | 26% | 31.8° |
| 2025-06-21 Sat | 0 | 0 | 0 | — | 72.5° 11:05 | 4.42 | 17% | 17.3° |
| 2025-06-22 Sun | 0 | 0 | 0 | — | 72.5° 11:00 | 4.42 | 9% | 2.6° |
| 2025-06-23 Mon | 0 | 0 | 0 | — | 72.5° 11:00 | 4.43 | 3% | 12.2° |
| 2025-06-24 Tue | 0 | 0 | 0 | — | 72.5° 10:55 | 4.44 | 1% | 26.9° |
| 2025-06-25 Wed | 0 | 0 | 0 | — | 72.5° 10:50 | 4.45 | 0% | 41.4° |
| 2025-06-26 Thu | 0 | 0 | 0 | — | 72.5° 10:45 | 4.46 | 3% | 55.6° |
| 2025-06-27 Fri | 0 | 0 | 0 | — | 72.5° 10:40 | 4.47 | 8% | 69.4° |
| 2025-06-28 Sat | 0 | 0 | 0 | — | 72.5° 10:40 | 4.48 | 15% | 82.8° |
| 2025-06-29 Sun | 0 | 100 | 0 | — | 72.5° 10:35 | 4.5 | 23% | 95.8° |
| 2025-06-30 Mon | 0 | 89 | 0 | — | 72.5° 10:30 | 4.52 | 32% | 108.5° |
| 2025-07-01 Tue | 0 | 100 | 0 | — | 72.5° 10:25 | 4.54 | 42% | 120.8° |
| 2025-07-02 Wed | 0 | 100 | 0 | — | 72.5° 10:25 | 4.56 | 51% | 132.9° |
| 2025-07-03 Thu | 0 | 100 | 0 | — | 72.5° 10:20 | 4.59 | 61% | 144.8° |
| 2025-07-04 Fri | 0 | 100 | 0 | — | 72.5° 10:15 | 4.62 | 70% | 156.6° |
| 2025-07-05 Sat | 0 | 100 | 0 | — | 72.5° 10:10 | 4.64 | 78% | 168.5° |
| 2025-07-06 Sun | 0 | 100 | 0 | — | 72.5° 10:05 | 4.67 | 85% | 179.3° |
| 2025-07-07 Mon | 1 | 100 | 1 | — | 72.5° 10:05 | 4.7 | 91% | 167.5° |
| 2025-07-08 Tue | 1 | 99 | 1 | — | 72.5° 10:00 | 4.74 | 96% | 155.3° |
| 2025-07-09 Wed | 1 | 100 | 1 | — | 72.5° 09:55 | 4.77 | 99% | 142.8° |
| 2025-07-10 Thu | 1 | 69 | 1 | — | 72.5° 09:50 | 4.81 | 100% | 130.1° |
| 2025-07-11 Fri | 1 | 77 | 1 | — | 72.5° 09:45 | 4.85 | 99% | 117.2° |
| 2025-07-12 Sat | 1 | 100 | 1 | — | 72.5° 09:45 | 4.88 | 95% | 104.0° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2025-06-13&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.