← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-06-21 Wed | 13 | — | unknown | 03:30–03:40 (good, 0.17 h) | 79.1° 08:55 | 4.42 | 34% | 126.3° |
| 2034-06-22 Thu | 15 | — | unknown | 03:25–03:40 (good, 0.25 h) | 79.1° 08:50 | 4.43 | 43% | 137.1° |
| 2034-06-23 Fri | 17 | — | unknown | 03:20–03:40 (good, 0.33 h) | 79.1° 08:45 | 4.43 | 53% | 146.7° |
| 2034-06-24 Sat | 18 | — | unknown | 03:15–03:40 (good, 0.42 h) | 79.1° 08:45 | 4.44 | 63% | 154.2° |
| 2034-06-25 Sun | 20 | — | unknown | 03:10–03:40 (good, 0.5 h) | 79.1° 08:40 | 4.45 | 72% | 157.7° |
| 2034-06-26 Mon | 22 | — | unknown | 03:10–03:40 (good, 0.5 h) | 79.1° 08:35 | 4.46 | 80% | 155.6° |
| 2034-06-27 Tue | 22 | — | unknown | 03:10–03:40 (good, 0.5 h) | 79.1° 08:30 | 4.47 | 87% | 149.1° |
| 2034-06-28 Wed | 21 | — | unknown | 03:10–03:40 (good, 0.5 h) | 79.1° 08:25 | 4.48 | 92% | 140.1° |
| 2034-06-29 Thu | 22 | — | unknown | 03:05–03:40 (good, 0.58 h) | 79.1° 08:25 | 4.5 | 97% | 130.0° |
| 2034-06-30 Fri | 22 | — | unknown | 03:05–03:45 (good, 0.67 h) | 79.1° 08:20 | 4.52 | 99% | 119.1° |
| 2034-07-01 Sat | 20 | — | unknown | 03:05–03:45 (good, 0.67 h) | 79.1° 08:15 | 4.54 | 100% | 107.9° |
| 2034-07-02 Sun | 18 | — | unknown | 03:10–03:45 (good, 0.58 h) | 79.1° 08:10 | 4.56 | 98% | 96.3° |
| 2034-07-03 Mon | 16 | — | unknown | 02:15–03:45 (marginal, 1.5 h) | 79.1° 08:10 | 4.59 | 95% | 84.4° |
| 2034-07-04 Tue | 14 | — | unknown | 02:15–03:45 (marginal, 1.5 h) | 79.1° 08:05 | 4.61 | 89% | 72.4° |
| 2034-07-05 Wed | 14 | — | unknown | 02:15–03:50 (marginal, 1.58 h) | 79.1° 08:00 | 4.64 | 82% | 60.4° |
| 2034-07-06 Thu | 15 | — | unknown | 02:10–03:50 (marginal, 1.67 h) | 79.1° 07:55 | 4.67 | 73% | 48.5° |
| 2034-07-07 Fri | 16 | — | unknown | 02:00–03:50 (marginal, 1.83 h) | 79.1° 07:50 | 4.7 | 63% | 37.2° |
| 2034-07-08 Sat | 20 | — | unknown | 03:40–03:50 (good, 0.17 h) | 79.1° 07:50 | 4.73 | 52% | 27.6° |
| 2034-07-09 Sun | 26 | — | unknown | 02:35–03:50 (good, 1.25 h) | 79.1° 07:45 | 4.77 | 40% | 22.5° |
| 2034-07-10 Mon | 34 | — | unknown | 02:25–03:55 (good, 1.5 h) | 79.1° 07:40 | 4.8 | 29% | 25.1° |
| 2034-07-11 Tue | 42 | — | unknown | 02:10–03:55 (good, 1.75 h) | 79.1° 07:35 | 4.84 | 19% | 33.9° |
| 2034-07-12 Wed | 49 | — | unknown | 02:05–03:55 (good, 1.83 h) | 79.1° 07:30 | 4.88 | 11% | 45.5° |
| 2034-07-13 Thu | 52 | — | unknown | 02:00–03:55 (good, 1.92 h) | 79.1° 07:30 | 4.92 | 5% | 58.2° |
| 2034-07-14 Fri | 54 | — | unknown | 01:55–04:00 (good, 2.08 h) | 79.1° 07:25 | 4.96 | 1% | 71.3° |
| 2034-07-15 Sat | 57 | — | unknown | 01:55–04:00 (good, 2.08 h) | 79.1° 07:20 | 5.0 | 0% | 84.5° |
| 2034-07-16 Sun | 59 | — | unknown | 01:50–04:00 (good, 2.17 h) | 79.1° 07:15 | 5.04 | 2% | 97.4° |
| 2034-07-17 Mon | 62 | — | unknown | 01:45–04:05 (good, 2.33 h) | 79.1° 07:15 | 5.09 | 6% | 110.0° |
| 2034-07-18 Tue | 63 | — | unknown | 01:40–04:05 (good, 2.42 h) | 79.1° 07:10 | 5.13 | 12% | 122.0° |
| 2034-07-19 Wed | 66 | — | unknown | 01:35–04:05 (good, 2.5 h) | 79.1° 07:05 | 5.18 | 19% | 133.2° |
| 2034-07-20 Thu | 68 | — | unknown | 01:35–04:05 (good, 2.5 h) | 79.1° 07:00 | 5.23 | 28% | 143.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-06-21&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.