← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-07-03 Tue | 0 | — | unknown | — | 72.5° 10:20 | 4.58 | 4% | 22.8° |
| 2035-07-04 Wed | 0 | — | unknown | — | 72.5° 10:15 | 4.61 | 0% | 37.1° |
| 2035-07-05 Thu | 0 | — | unknown | — | 72.5° 10:15 | 4.63 | 0% | 51.9° |
| 2035-07-06 Fri | 0 | — | unknown | — | 72.5° 10:10 | 4.66 | 4% | 66.7° |
| 2035-07-07 Sat | 1 | — | unknown | — | 72.5° 10:05 | 4.69 | 9% | 81.2° |
| 2035-07-08 Sun | 1 | — | unknown | — | 72.5° 10:00 | 4.73 | 17% | 95.3° |
| 2035-07-09 Mon | 1 | — | unknown | — | 72.5° 09:55 | 4.76 | 26% | 108.9° |
| 2035-07-10 Tue | 1 | — | unknown | — | 72.5° 09:55 | 4.79 | 36% | 122.0° |
| 2035-07-11 Wed | 1 | — | unknown | — | 72.5° 09:50 | 4.83 | 46% | 134.7° |
| 2035-07-12 Thu | 2 | — | unknown | 04:40–04:45 (marginal, 0.08 h) | 72.5° 09:45 | 4.87 | 56% | 146.8° |
| 2035-07-13 Fri | 2 | — | unknown | 04:35–04:45 (marginal, 0.17 h) | 72.5° 09:40 | 4.91 | 66% | 158.3° |
| 2035-07-14 Sat | 2 | — | unknown | 04:30–04:45 (marginal, 0.25 h) | 72.5° 09:40 | 4.95 | 75% | 168.0° |
| 2035-07-15 Sun | 3 | — | unknown | 04:30–04:50 (marginal, 0.33 h) | 72.5° 09:35 | 4.99 | 82% | 169.8° |
| 2035-07-16 Mon | 4 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 72.5° 09:30 | 5.03 | 89% | 161.5° |
| 2035-07-17 Tue | 4 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 72.5° 09:25 | 5.08 | 94% | 150.7° |
| 2035-07-18 Wed | 5 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 72.5° 09:20 | 5.12 | 98% | 139.3° |
| 2035-07-19 Thu | 6 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 72.5° 09:20 | 5.17 | 100% | 127.7° |
| 2035-07-20 Fri | 6 | — | unknown | 04:20–04:55 (marginal, 0.58 h) | 72.5° 09:15 | 5.22 | 100% | 115.9° |
| 2035-07-21 Sat | 7 | — | unknown | 03:35–04:10 (marginal, 0.58 h) | 72.5° 09:10 | 5.26 | 98% | 104.0° |
| 2035-07-22 Sun | 6 | — | unknown | 03:35–04:10 (marginal, 0.58 h) | 72.5° 09:05 | 5.31 | 94% | 91.9° |
| 2035-07-23 Mon | 6 | — | unknown | 03:35–04:10 (marginal, 0.58 h) | 72.5° 09:00 | 5.36 | 89% | 79.6° |
| 2035-07-24 Tue | 7 | — | unknown | 03:35–04:15 (marginal, 0.67 h) | 72.5° 09:00 | 5.41 | 82% | 67.1° |
| 2035-07-25 Wed | 7 | — | unknown | 03:30–04:15 (marginal, 0.75 h) | 72.5° 08:55 | 5.46 | 73% | 54.4° |
| 2035-07-26 Thu | 8 | — | unknown | 03:25–04:15 (marginal, 0.83 h) | 72.5° 08:50 | 5.52 | 63% | 41.6° |
| 2035-07-27 Fri | 9 | — | unknown | 03:20–04:15 (marginal, 0.92 h) | 72.5° 08:45 | 5.57 | 52% | 28.7° |
| 2035-07-28 Sat | 13 | — | unknown | 04:05–04:20 (good, 0.25 h) | 72.5° 08:45 | 5.62 | 41% | 16.3° |
| 2035-07-29 Sun | 18 | — | unknown | 03:50–04:20 (good, 0.5 h) | 72.5° 08:40 | 5.67 | 30% | 9.3° |
| 2035-07-30 Mon | 22 | — | unknown | 03:35–04:20 (good, 0.75 h) | 72.5° 08:35 | 5.73 | 20% | 17.8° |
| 2035-07-31 Tue | 26 | — | unknown | 03:25–04:25 (good, 1.0 h) | 72.5° 08:30 | 5.78 | 11% | 31.2° |
| 2035-08-01 Wed | 30 | — | unknown | 03:20–04:25 (good, 1.08 h) | 72.5° 08:25 | 5.84 | 5% | 45.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-07-03&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.