← 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. |
|---|---|---|---|---|---|---|---|---|
| 2025-10-29 Wed | 100 | 100 | 100 | 20:35–05:20 (good, 8.75 h) | 72.5° 01:35 | 10.4 | 52% | 110.4° |
| 2025-10-30 Thu | 100 | 52 | 52 | 21:00–02:00 (good, 5.0 h) | 72.5° 01:30 | 10.44 | 63% | 97.5° |
| 2025-10-31 Fri | 100 | 48 | 48 | 00:00–03:00 (good, 3.0 h) | 72.5° 01:25 | 10.47 | 73% | 84.1° |
| 2025-11-01 Sat | 100 | 99 | 99 | 22:50–05:25 (good, 6.58 h) | 72.5° 01:25 | 10.51 | 82% | 70.2° |
| 2025-11-02 Sun | 94 | 85 | 80 | 01:50–05:25 (good, 3.58 h) | 72.5° 01:20 | 10.55 | 90% | 55.9° |
| 2025-11-03 Mon | 85 | 0 | 0 | — | 72.5° 01:15 | 10.58 | 96% | 41.1° |
| 2025-11-04 Tue | 32 | 0 | 0 | — | 72.5° 01:10 | 10.62 | 99% | 26.1° |
| 2025-11-05 Wed | 24 | 0 | 0 | — | 72.5° 01:05 | 10.65 | 100% | 10.8° |
| 2025-11-06 Thu | 24 | 0 | 0 | — | 72.5° 01:05 | 10.69 | 97% | 4.5° |
| 2025-11-07 Fri | 35 | 0 | 0 | — | 72.5° 01:00 | 10.72 | 92% | 19.6° |
| 2025-11-08 Sat | 51 | 0 | 0 | — | 72.5° 00:55 | 10.75 | 84% | 34.4° |
| 2025-11-09 Sun | 83 | 3 | 3 | — | 72.5° 00:50 | 10.78 | 74% | 48.8° |
| 2025-11-10 Mon | 93 | 0 | 0 | — | 72.5° 00:50 | 10.82 | 64% | 62.7° |
| 2025-11-11 Tue | 100 | 98 | 98 | 19:55–05:30 (good, 9.58 h) | 72.5° 00:45 | 10.85 | 53% | 76.2° |
| 2025-11-12 Wed | 100 | 90 | 90 | 21:00–05:35 (good, 8.58 h) | 72.5° 00:40 | 10.88 | 43% | 89.2° |
| 2025-11-13 Thu | 100 | 92 | 92 | 19:30–04:00 (good, 8.5 h) | 72.5° 00:35 | 10.91 | 33% | 101.9° |
| 2025-11-14 Fri | 100 | 100 | 100 | 19:25–05:35 (good, 10.17 h) | 72.5° 00:30 | 10.94 | 24% | 114.3° |
| 2025-11-15 Sat | 100 | 59 | 59 | 19:25–23:00 (good, 3.58 h) | 72.5° 00:30 | 10.97 | 16% | 126.5° |
| 2025-11-16 Sun | 100 | 23 | 23 | 19:05–21:00 (marginal, 1.92 h) | 72.5° 00:25 | 10.99 | 10% | 138.6° |
| 2025-11-17 Mon | 100 | 0 | 0 | — | 72.5° 00:20 | 11.02 | 5% | 150.5° |
| 2025-11-18 Tue | 100 | 0 | 0 | — | 72.5° 00:15 | 11.05 | 2% | 162.3° |
| 2025-11-19 Wed | 100 | 5 | 5 | 02:00–03:00 (marginal, 1.0 h) | 72.5° 00:10 | 11.08 | 0% | 174.1° |
| 2025-11-20 Thu | 100 | 9 | 9 | 22:00–23:00 (marginal, 1.0 h) | 72.5° 00:10 | 11.1 | 0% | 173.9° |
| 2025-11-21 Fri | 100 | 0 | 0 | — | 72.5° 00:05 | 11.13 | 3% | 162.1° |
| 2025-11-22 Sat | 100 | 14 | 14 | 20:00–21:00 (good, 1.0 h) | 72.5° 00:00 | 11.15 | 6% | 150.2° |
| 2025-11-23 Sun | 100 | 99 | 99 | 19:00–05:05 (good, 10.08 h) | 72.5° 23:55 | 11.17 | 12% | 138.2° |
| 2025-11-24 Mon | 100 | 71 | 71 | 18:50–02:00 (good, 7.17 h) | 72.5° 23:55 | 11.2 | 18% | 126.1° |
| 2025-11-25 Tue | 100 | 0 | 0 | — | 72.5° 23:50 | 11.22 | 27% | 113.8° |
| 2025-11-26 Wed | 100 | 3 | 3 | 21:00–22:00 (marginal, 1.0 h) | 72.5° 23:45 | 11.24 | 36% | 101.2° |
| 2025-11-27 Thu | 100 | 0 | 0 | — | 72.5° 23:40 | 11.26 | 46% | 88.4° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2025-10-29&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.