← 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. |
|---|---|---|---|---|---|---|---|---|
| 2025-11-02 Sun | 1 | 93 | 1 | — | 50.2° 10:00 | 10.55 | 90% | 173.4° |
| 2025-11-03 Mon | 1 | 0 | 0 | — | 50.2° 09:55 | 10.58 | 96% | 165.3° |
| 2025-11-04 Tue | 1 | 0 | 0 | — | 50.2° 09:50 | 10.62 | 99% | 151.0° |
| 2025-11-05 Wed | 1 | 0 | 0 | — | 50.2° 09:50 | 10.65 | 100% | 136.0° |
| 2025-11-06 Thu | 1 | 0 | 0 | — | 50.2° 09:45 | 10.69 | 97% | 120.9° |
| 2025-11-07 Fri | 2 | 0 | 0 | — | 50.2° 09:40 | 10.72 | 92% | 105.9° |
| 2025-11-08 Sat | 2 | 0 | 0 | — | 50.2° 09:35 | 10.75 | 84% | 91.2° |
| 2025-11-09 Sun | 2 | 0 | 0 | — | 50.2° 09:35 | 10.78 | 74% | 76.9° |
| 2025-11-10 Mon | 2 | 0 | 0 | — | 50.2° 09:30 | 10.82 | 64% | 63.1° |
| 2025-11-11 Tue | 3 | 99 | 3 | 05:15–05:35 (marginal, 0.33 h) | 50.2° 09:25 | 10.85 | 53% | 49.8° |
| 2025-11-12 Wed | 4 | 98 | 4 | 05:10–05:35 (marginal, 0.42 h) | 50.2° 09:20 | 10.88 | 43% | 36.9° |
| 2025-11-13 Thu | 5 | 31 | 2 | — | 50.2° 09:15 | 10.91 | 33% | 24.5° |
| 2025-11-14 Fri | 7 | 100 | 7 | 05:00–05:35 (marginal, 0.58 h) | 50.2° 09:15 | 10.94 | 24% | 13.0° |
| 2025-11-15 Sat | 9 | 78 | 7 | 04:55–05:35 (marginal, 0.67 h) | 50.2° 09:10 | 10.97 | 16% | 6.5° |
| 2025-11-16 Sun | 13 | 41 | 5 | 05:25–05:40 (marginal, 0.25 h) | 50.2° 09:05 | 10.99 | 10% | 14.5° |
| 2025-11-17 Mon | 15 | 0 | 0 | — | 50.2° 09:00 | 11.02 | 5% | 25.7° |
| 2025-11-18 Tue | 18 | 0 | 0 | — | 50.2° 08:55 | 11.05 | 2% | 37.2° |
| 2025-11-19 Wed | 19 | 0 | 0 | — | 50.2° 08:55 | 11.08 | 0% | 48.9° |
| 2025-11-20 Thu | 21 | 0 | 0 | — | 50.2° 08:50 | 11.1 | 0% | 60.6° |
| 2025-11-21 Fri | 22 | 0 | 0 | — | 50.2° 08:45 | 11.13 | 3% | 72.4° |
| 2025-11-22 Sat | 24 | 0 | 0 | — | 50.2° 08:40 | 11.15 | 6% | 84.2° |
| 2025-11-23 Sun | 26 | 100 | 26 | 04:50–05:45 (good, 0.92 h) | 50.2° 08:40 | 11.17 | 12% | 96.1° |
| 2025-11-24 Mon | 27 | 0 | 0 | — | 50.2° 08:35 | 11.2 | 18% | 108.2° |
| 2025-11-25 Tue | 28 | 0 | 0 | — | 50.2° 08:30 | 11.22 | 27% | 120.4° |
| 2025-11-26 Wed | 30 | 0 | 0 | — | 50.2° 08:25 | 11.24 | 36% | 132.8° |
| 2025-11-27 Thu | 33 | 0 | 0 | — | 50.2° 08:20 | 11.26 | 46% | 145.5° |
| 2025-11-28 Fri | 34 | 0 | 0 | — | 50.2° 08:20 | 11.28 | 57% | 158.3° |
| 2025-11-29 Sat | 35 | 0 | 0 | — | 50.2° 08:15 | 11.3 | 67% | 170.3° |
| 2025-11-30 Sun | 37 | 0 | 0 | — | 50.2° 08:10 | 11.32 | 78% | 170.4° |
| 2025-12-01 Mon | 39 | 0 | 0 | — | 50.2° 08:05 | 11.34 | 86% | 157.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2025-11-02&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.