← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-06-08 Thu | 41 | — | unknown | 23:05–00:35 (good, 1.5 h) | 50.2° 20:45 | 4.58 | 60% | 150.4° |
| 2034-06-09 Fri | 39 | — | unknown | 23:05–00:30 (good, 1.42 h) | 50.2° 20:40 | 4.56 | 49% | 163.7° |
| 2034-06-10 Sat | 38 | — | unknown | 23:05–00:25 (good, 1.33 h) | 50.2° 20:35 | 4.53 | 38% | 175.4° |
| 2034-06-11 Sun | 35 | — | unknown | 23:10–00:25 (good, 1.25 h) | 50.2° 20:30 | 4.51 | 27% | 167.0° |
| 2034-06-12 Mon | 34 | — | unknown | 23:10–00:20 (good, 1.17 h) | 50.2° 20:25 | 4.5 | 17% | 152.8° |
| 2034-06-13 Tue | 33 | — | unknown | 23:10–00:15 (good, 1.08 h) | 50.2° 20:25 | 4.48 | 9% | 138.1° |
| 2034-06-14 Wed | 31 | — | unknown | 23:10–00:10 (good, 1.0 h) | 50.2° 20:20 | 4.47 | 4% | 123.2° |
| 2034-06-15 Thu | 29 | — | unknown | 23:10–00:10 (good, 1.0 h) | 50.2° 20:15 | 4.45 | 1% | 108.3° |
| 2034-06-16 Fri | 28 | — | unknown | 23:10–00:05 (good, 0.92 h) | 50.2° 20:10 | 4.44 | 0% | 93.5° |
| 2034-06-17 Sat | 27 | — | unknown | 23:10–00:00 (good, 0.83 h) | 50.2° 20:10 | 4.43 | 3% | 79.0° |
| 2034-06-18 Sun | 26 | — | unknown | 23:10–23:55 (good, 0.75 h) | 50.2° 20:05 | 4.43 | 9% | 64.9° |
| 2034-06-19 Mon | 23 | — | unknown | 23:10–23:50 (good, 0.67 h) | 50.2° 20:00 | 4.42 | 16% | 51.2° |
| 2034-06-20 Tue | 18 | — | unknown | 23:15–23:40 (good, 0.42 h) | 50.2° 19:55 | 4.42 | 24% | 37.9° |
| 2034-06-21 Wed | 14 | — | unknown | 23:15–23:25 (good, 0.17 h) | 50.2° 19:50 | 4.42 | 34% | 25.2° |
| 2034-06-22 Thu | 11 | — | unknown | 22:20–00:10 (marginal, 1.83 h) | 50.2° 19:50 | 4.43 | 43% | 13.0° |
| 2034-06-23 Fri | 9 | — | unknown | 23:15–00:05 (marginal, 0.83 h) | 50.2° 19:45 | 4.43 | 53% | 4.1° |
| 2034-06-24 Sat | 6 | — | unknown | 23:15–23:55 (marginal, 0.67 h) | 50.2° 19:40 | 4.44 | 63% | 12.6° |
| 2034-06-25 Sun | 5 | — | unknown | 23:15–23:40 (marginal, 0.42 h) | 50.2° 19:35 | 4.45 | 72% | 24.1° |
| 2034-06-26 Mon | 4 | — | unknown | 23:15–23:30 (marginal, 0.25 h) | 50.2° 19:30 | 4.46 | 80% | 35.9° |
| 2034-06-27 Tue | 4 | — | unknown | 23:15–23:30 (marginal, 0.25 h) | 50.2° 19:30 | 4.47 | 87% | 47.6° |
| 2034-06-28 Wed | 4 | — | unknown | 23:15–23:30 (marginal, 0.25 h) | 50.2° 19:25 | 4.48 | 92% | 59.5° |
| 2034-06-29 Thu | 4 | — | unknown | 23:10–23:30 (marginal, 0.33 h) | 50.2° 19:20 | 4.5 | 97% | 71.5° |
| 2034-06-30 Fri | 4 | — | unknown | 23:10–23:35 (marginal, 0.42 h) | 50.2° 19:15 | 4.52 | 99% | 83.7° |
| 2034-07-01 Sat | 5 | — | unknown | 23:10–23:35 (marginal, 0.42 h) | 50.2° 19:15 | 4.54 | 100% | 96.1° |
| 2034-07-02 Sun | 5 | — | unknown | 22:20–22:45 (marginal, 0.42 h) | 50.2° 19:10 | 4.56 | 98% | 108.6° |
| 2034-07-03 Mon | 5 | — | unknown | 22:20–22:50 (marginal, 0.5 h) | 50.2° 19:05 | 4.59 | 95% | 121.4° |
| 2034-07-04 Tue | 5 | — | unknown | 22:20–22:45 (marginal, 0.42 h) | 50.2° 19:00 | 4.61 | 89% | 134.4° |
| 2034-07-05 Wed | 4 | — | unknown | 22:20–22:50 (marginal, 0.5 h) | 50.2° 18:55 | 4.64 | 82% | 147.5° |
| 2034-07-06 Thu | 4 | — | unknown | 22:15–22:45 (marginal, 0.5 h) | 50.2° 18:55 | 4.67 | 73% | 160.8° |
| 2034-07-07 Fri | 3 | — | unknown | 22:15–22:40 (marginal, 0.42 h) | 50.2° 18:50 | 4.7 | 63% | 173.5° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-06-08&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.