← 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. |
|---|---|---|---|---|---|---|---|---|
| 2032-01-21 Wed | 0 | — | unknown | — | 71.1° 12:20 | 11.09 | 74% | 106.3° |
| 2032-01-22 Thu | 0 | — | unknown | — | 71.1° 12:20 | 11.07 | 82% | 115.7° |
| 2032-01-23 Fri | 0 | — | unknown | — | 71.1° 12:15 | 11.04 | 89% | 124.3° |
| 2032-01-24 Sat | 0 | — | unknown | — | 71.1° 12:10 | 11.01 | 94% | 132.0° |
| 2032-01-25 Sun | 0 | — | unknown | — | 71.1° 12:05 | 10.99 | 98% | 138.0° |
| 2032-01-26 Mon | 0 | — | unknown | — | 71.1° 12:00 | 10.96 | 100% | 141.9° |
| 2032-01-27 Tue | 0 | — | unknown | — | 71.1° 11:55 | 10.93 | 100% | 142.7° |
| 2032-01-28 Wed | 1 | — | unknown | — | 71.1° 11:50 | 10.9 | 98% | 140.4° |
| 2032-01-29 Thu | 1 | — | unknown | — | 71.1° 11:45 | 10.87 | 95% | 135.5° |
| 2032-01-30 Fri | 1 | — | unknown | — | 71.1° 11:40 | 10.84 | 90% | 128.6° |
| 2032-01-31 Sat | 1 | — | unknown | — | 71.1° 11:40 | 10.8 | 83% | 120.4° |
| 2032-02-01 Sun | 1 | — | unknown | — | 71.1° 11:35 | 10.77 | 76% | 111.4° |
| 2032-02-02 Mon | 1 | — | unknown | — | 71.1° 11:30 | 10.74 | 66% | 101.8° |
| 2032-02-03 Tue | 1 | — | unknown | — | 71.1° 11:25 | 10.71 | 57% | 91.7° |
| 2032-02-04 Wed | 1 | — | unknown | — | 71.1° 11:25 | 10.67 | 46% | 81.3° |
| 2032-02-05 Thu | 2 | — | unknown | 05:50–05:55 (marginal, 0.08 h) | 71.1° 11:20 | 10.64 | 36% | 70.7° |
| 2032-02-06 Fri | 3 | — | unknown | 05:45–05:55 (marginal, 0.17 h) | 71.1° 11:15 | 10.6 | 25% | 60.3° |
| 2032-02-07 Sat | 3 | — | unknown | 05:45–05:55 (marginal, 0.17 h) | 71.1° 11:10 | 10.57 | 16% | 50.6° |
| 2032-02-08 Sun | 4 | — | unknown | 05:40–05:55 (marginal, 0.25 h) | 71.1° 11:05 | 10.53 | 8% | 42.5° |
| 2032-02-09 Mon | 4 | — | unknown | 06:00–06:25 (marginal, 0.42 h) | 71.1° 11:05 | 10.49 | 3% | 37.8° |
| 2032-02-10 Tue | 5 | — | unknown | 05:30–05:50 (marginal, 0.33 h) | 71.1° 11:00 | 10.46 | 0% | 37.9° |
| 2032-02-11 Wed | 6 | — | unknown | 05:25–05:50 (marginal, 0.42 h) | 71.1° 10:55 | 10.42 | 1% | 42.9° |
| 2032-02-12 Thu | 7 | — | unknown | 05:25–06:20 (marginal, 0.92 h) | 71.1° 10:50 | 10.38 | 4% | 51.3° |
| 2032-02-13 Fri | 8 | — | unknown | 05:45–05:50 (good, 0.08 h) | 71.1° 10:45 | 10.34 | 10% | 61.4° |
| 2032-02-14 Sat | 8 | — | unknown | 05:40–05:45 (good, 0.08 h) | 71.1° 10:45 | 10.3 | 18% | 72.2° |
| 2032-02-15 Sun | 9 | — | unknown | 05:40–05:45 (good, 0.08 h) | 71.1° 10:40 | 10.26 | 28% | 83.0° |
| 2032-02-16 Mon | 10 | — | unknown | 05:35–05:45 (good, 0.17 h) | 71.1° 10:35 | 10.22 | 38% | 93.6° |
| 2032-02-17 Tue | 11 | — | unknown | 05:30–05:45 (good, 0.25 h) | 71.1° 10:30 | 10.18 | 48% | 103.8° |
| 2032-02-18 Wed | 11 | — | unknown | 05:25–05:40 (good, 0.25 h) | 71.1° 10:30 | 10.14 | 58% | 113.5° |
| 2032-02-19 Thu | 12 | — | unknown | 05:25–05:40 (good, 0.25 h) | 71.1° 10:25 | 10.1 | 67% | 122.4° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2032-01-21&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.