← 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. |
|---|---|---|---|---|---|---|---|---|
| 2032-05-10 Mon | 3 | — | unknown | 04:45–05:00 (marginal, 0.25 h) | 89.6° 10:45 | 5.82 | 2% | 51.8° |
| 2032-05-11 Tue | 4 | — | unknown | 04:40–04:55 (marginal, 0.25 h) | 89.6° 10:45 | 5.76 | 6% | 61.7° |
| 2032-05-12 Wed | 4 | — | unknown | 04:35–04:55 (marginal, 0.33 h) | 89.7° 10:40 | 5.71 | 12% | 72.0° |
| 2032-05-13 Thu | 4 | — | unknown | 04:30–04:55 (marginal, 0.42 h) | 89.8° 10:35 | 5.66 | 19% | 82.3° |
| 2032-05-14 Fri | 5 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 89.7° 10:30 | 5.6 | 27% | 92.5° |
| 2032-05-15 Sat | 5 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 89.5° 10:25 | 5.55 | 36% | 102.6° |
| 2032-05-16 Sun | 6 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 89.6° 10:25 | 5.5 | 46% | 112.4° |
| 2032-05-17 Mon | 6 | — | unknown | 04:15–04:50 (marginal, 0.58 h) | 89.7° 10:20 | 5.44 | 55% | 121.9° |
| 2032-05-18 Tue | 6 | — | unknown | 04:10–04:45 (marginal, 0.58 h) | 89.7° 10:15 | 5.39 | 64% | 130.8° |
| 2032-05-19 Wed | 7 | — | unknown | 04:10–04:45 (marginal, 0.58 h) | 89.6° 10:10 | 5.34 | 73% | 138.8° |
| 2032-05-20 Thu | 8 | — | unknown | 04:05–04:45 (marginal, 0.67 h) | 89.5° 10:10 | 5.29 | 82% | 144.9° |
| 2032-05-21 Fri | 8 | — | unknown | 04:05–04:45 (marginal, 0.67 h) | 89.7° 10:05 | 5.24 | 89% | 147.8° |
| 2032-05-22 Sat | 8 | — | unknown | 04:05–04:45 (marginal, 0.67 h) | 89.7° 10:00 | 5.2 | 94% | 146.4° |
| 2032-05-23 Sun | 8 | — | unknown | 03:20–03:55 (marginal, 0.58 h) | 89.7° 09:55 | 5.15 | 98% | 140.8° |
| 2032-05-24 Mon | 9 | — | unknown | 03:15–03:55 (marginal, 0.67 h) | 89.6° 09:50 | 5.1 | 100% | 132.2° |
| 2032-05-25 Tue | 9 | — | unknown | 03:10–03:50 (marginal, 0.67 h) | 89.5° 09:50 | 5.06 | 99% | 121.9° |
| 2032-05-26 Wed | 9 | — | unknown | 03:05–03:50 (marginal, 0.75 h) | 89.7° 09:45 | 5.01 | 96% | 110.5° |
| 2032-05-27 Thu | 9 | — | unknown | 03:05–03:50 (marginal, 0.75 h) | 89.8° 09:40 | 4.97 | 90% | 98.6° |
| 2032-05-28 Fri | 9 | — | unknown | 03:00–03:50 (marginal, 0.83 h) | 89.7° 09:35 | 4.93 | 82% | 86.4° |
| 2032-05-29 Sat | 9 | — | unknown | 02:55–03:50 (marginal, 0.92 h) | 89.5° 09:30 | 4.89 | 72% | 74.3° |
| 2032-05-30 Sun | 10 | — | unknown | 02:50–03:45 (marginal, 0.92 h) | 89.6° 09:30 | 4.85 | 61% | 62.6° |
| 2032-05-31 Mon | 11 | — | unknown | 02:50–04:35 (marginal, 1.75 h) | 89.7° 09:25 | 4.81 | 49% | 51.7° |
| 2032-06-01 Tue | 14 | — | unknown | 03:35–03:45 (good, 0.17 h) | 89.7° 09:20 | 4.78 | 38% | 42.2° |
| 2032-06-02 Wed | 17 | — | unknown | 03:25–03:45 (good, 0.33 h) | 89.6° 09:15 | 4.74 | 28% | 35.1° |
| 2032-06-03 Thu | 20 | — | unknown | 03:10–03:45 (good, 0.58 h) | 89.5° 09:15 | 4.71 | 18% | 32.2° |
| 2032-06-04 Fri | 23 | — | unknown | 03:05–03:40 (good, 0.58 h) | 89.6° 09:10 | 4.68 | 11% | 34.2° |
| 2032-06-05 Sat | 24 | — | unknown | 03:00–03:40 (good, 0.67 h) | 89.7° 09:05 | 4.65 | 5% | 40.2° |
| 2032-06-06 Sun | 25 | — | unknown | 02:55–03:40 (good, 0.75 h) | 89.7° 09:00 | 4.62 | 1% | 48.7° |
| 2032-06-07 Mon | 26 | — | unknown | 02:55–03:40 (good, 0.75 h) | 89.6° 08:55 | 4.59 | 0% | 58.3° |
| 2032-06-08 Tue | 28 | — | unknown | 02:50–03:40 (good, 0.83 h) | 89.5° 08:55 | 4.57 | 1% | 68.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2032-05-10&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.