← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-06-19 Tue | 0 | — | unknown | — | 72.5° 11:15 | 4.43 | 99% | 158.9° |
| 2035-06-20 Wed | 0 | — | unknown | — | 72.5° 11:10 | 4.42 | 100% | 147.9° |
| 2035-06-21 Thu | 0 | — | unknown | — | 72.5° 11:10 | 4.42 | 99% | 136.5° |
| 2035-06-22 Fri | 0 | — | unknown | — | 72.5° 11:05 | 4.42 | 96% | 124.8° |
| 2035-06-23 Sat | 0 | — | unknown | — | 72.5° 11:00 | 4.43 | 91% | 113.0° |
| 2035-06-24 Sun | 0 | — | unknown | — | 72.5° 10:55 | 4.43 | 85% | 101.1° |
| 2035-06-25 Mon | 0 | — | unknown | — | 72.5° 10:50 | 4.44 | 78% | 89.0° |
| 2035-06-26 Tue | 0 | — | unknown | — | 72.5° 10:50 | 4.45 | 69% | 76.7° |
| 2035-06-27 Wed | 0 | — | unknown | — | 72.5° 10:45 | 4.47 | 59% | 64.1° |
| 2035-06-28 Thu | 0 | — | unknown | — | 72.5° 10:40 | 4.48 | 48% | 51.2° |
| 2035-06-29 Fri | 0 | — | unknown | — | 72.5° 10:35 | 4.5 | 38% | 38.1° |
| 2035-06-30 Sat | 0 | — | unknown | — | 72.5° 10:35 | 4.51 | 27% | 24.9° |
| 2035-07-01 Sun | 0 | — | unknown | — | 72.5° 10:30 | 4.53 | 17% | 12.7° |
| 2035-07-02 Mon | 0 | — | unknown | — | 72.5° 10:25 | 4.56 | 9% | 10.9° |
| 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° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-06-19&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.