← 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. |
|---|---|---|---|---|---|---|---|---|
| 2025-06-25 Wed | 0 | 0 | 0 | — | 42.9° 12:40 | 4.45 | 0% | 37.7° |
| 2025-06-26 Thu | 0 | 0 | 0 | — | 42.9° 12:40 | 4.46 | 3% | 45.3° |
| 2025-06-27 Fri | 0 | 0 | 0 | — | 42.9° 12:35 | 4.47 | 8% | 54.8° |
| 2025-06-28 Sat | 0 | 0 | 0 | — | 42.9° 12:30 | 4.48 | 15% | 65.1° |
| 2025-06-29 Sun | 0 | 0 | 0 | — | 42.9° 12:25 | 4.5 | 23% | 75.6° |
| 2025-06-30 Mon | 0 | 0 | 0 | — | 42.9° 12:25 | 4.52 | 32% | 86.0° |
| 2025-07-01 Tue | 0 | 0 | 0 | — | 42.9° 12:20 | 4.54 | 42% | 96.2° |
| 2025-07-02 Wed | 0 | 0 | 0 | — | 42.9° 12:15 | 4.56 | 51% | 106.2° |
| 2025-07-03 Thu | 0 | 0 | 0 | — | 42.9° 12:10 | 4.59 | 61% | 115.8° |
| 2025-07-04 Fri | 0 | 0 | 0 | — | 42.9° 12:05 | 4.62 | 70% | 124.8° |
| 2025-07-05 Sat | 0 | 0 | 0 | — | 42.9° 12:00 | 4.64 | 78% | 133.1° |
| 2025-07-06 Sun | 0 | 0 | 0 | — | 42.9° 11:55 | 4.67 | 85% | 140.0° |
| 2025-07-07 Mon | 0 | 0 | 0 | — | 42.9° 11:50 | 4.7 | 91% | 144.8° |
| 2025-07-08 Tue | 0 | 0 | 0 | — | 42.9° 11:45 | 4.74 | 96% | 146.3° |
| 2025-07-09 Wed | 0 | 0 | 0 | — | 42.9° 11:45 | 4.77 | 99% | 143.9° |
| 2025-07-10 Thu | 0 | 0 | 0 | — | 42.9° 11:40 | 4.81 | 100% | 138.1° |
| 2025-07-11 Fri | 0 | 0 | 0 | — | 42.9° 11:35 | 4.85 | 99% | 129.9° |
| 2025-07-12 Sat | 0 | 0 | 0 | — | 42.9° 11:30 | 4.88 | 95% | 120.3° |
| 2025-07-13 Sun | 0 | 0 | 0 | — | 42.9° 11:30 | 4.92 | 90% | 109.8° |
| 2025-07-14 Mon | 0 | 0 | 0 | — | 42.9° 11:25 | 4.97 | 82% | 98.6° |
| 2025-07-15 Tue | 0 | 0 | 0 | — | 42.9° 11:20 | 5.01 | 73% | 87.2° |
| 2025-07-16 Wed | 0 | 0 | 0 | — | 42.9° 11:15 | 5.05 | 62% | 75.7° |
| 2025-07-17 Thu | 0 | 0 | 0 | — | 42.9° 11:10 | 5.1 | 51% | 64.4° |
| 2025-07-18 Fri | 0 | 0 | 0 | — | 42.9° 11:10 | 5.14 | 40% | 53.6° |
| 2025-07-19 Sat | 0 | 0 | 0 | — | 42.9° 11:05 | 5.19 | 29% | 44.1° |
| 2025-07-20 Sun | 0 | 0 | 0 | — | 42.9° 11:00 | 5.24 | 19% | 36.9° |
| 2025-07-21 Mon | 0 | 0 | 0 | — | 42.9° 10:55 | 5.28 | 11% | 33.8° |
| 2025-07-22 Tue | 0 | 0 | 0 | — | 42.9° 10:50 | 5.33 | 5% | 35.8° |
| 2025-07-23 Wed | 0 | 0 | 0 | — | 42.9° 10:50 | 5.38 | 1% | 42.1° |
| 2025-07-24 Thu | 0 | 0 | 0 | — | 42.9° 10:45 | 5.43 | 0% | 50.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2025-06-25&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.