← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-06-04 Mon | 1 | — | unknown | — | 79.1° 10:05 | 4.7 | 2% | 33.6° |
| 2035-06-05 Tue | 2 | — | unknown | 04:30–04:35 (marginal, 0.08 h) | 79.1° 10:00 | 4.67 | 0% | 45.3° |
| 2035-06-06 Wed | 2 | — | unknown | 04:30–04:35 (marginal, 0.08 h) | 79.1° 09:55 | 4.64 | 1% | 58.5° |
| 2035-06-07 Thu | 2 | — | unknown | 04:25–04:30 (marginal, 0.08 h) | 79.1° 09:50 | 4.61 | 5% | 72.1° |
| 2035-06-08 Fri | 2 | — | unknown | 04:20–04:30 (marginal, 0.17 h) | 79.1° 09:45 | 4.59 | 12% | 85.7° |
| 2035-06-09 Sat | 3 | — | unknown | 04:15–04:30 (marginal, 0.25 h) | 79.1° 09:45 | 4.56 | 20% | 99.1° |
| 2035-06-10 Sun | 3 | — | unknown | 04:10–04:30 (marginal, 0.33 h) | 79.1° 09:40 | 4.54 | 30% | 112.0° |
| 2035-06-11 Mon | 3 | — | unknown | 04:10–04:30 (marginal, 0.33 h) | 79.1° 09:35 | 4.52 | 40% | 124.2° |
| 2035-06-12 Tue | 4 | — | unknown | 04:05–04:30 (marginal, 0.42 h) | 79.1° 09:30 | 4.5 | 51% | 135.5° |
| 2035-06-13 Wed | 5 | — | unknown | 04:00–04:30 (marginal, 0.5 h) | 79.1° 09:25 | 4.48 | 61% | 145.5° |
| 2035-06-14 Thu | 6 | — | unknown | 03:55–04:30 (marginal, 0.58 h) | 79.1° 09:25 | 4.47 | 71% | 153.1° |
| 2035-06-15 Fri | 6 | — | unknown | 03:50–04:30 (marginal, 0.67 h) | 79.1° 09:20 | 4.46 | 79% | 156.5° |
| 2035-06-16 Sat | 7 | — | unknown | 03:50–04:30 (marginal, 0.67 h) | 79.1° 09:15 | 4.44 | 87% | 154.3° |
| 2035-06-17 Sun | 7 | — | unknown | 03:50–04:30 (marginal, 0.67 h) | 79.1° 09:10 | 4.44 | 92% | 147.7° |
| 2035-06-18 Mon | 8 | — | unknown | 03:50–04:30 (marginal, 0.67 h) | 79.1° 09:10 | 4.43 | 97% | 138.8° |
| 2035-06-19 Tue | 8 | — | unknown | 03:45–04:30 (marginal, 0.75 h) | 79.1° 09:05 | 4.43 | 99% | 129.0° |
| 2035-06-20 Wed | 9 | — | unknown | 03:05–03:40 (marginal, 0.58 h) | 79.1° 09:00 | 4.42 | 100% | 118.6° |
| 2035-06-21 Thu | 9 | — | unknown | 03:00–03:40 (marginal, 0.67 h) | 79.1° 08:55 | 4.42 | 99% | 108.0° |
| 2035-06-22 Fri | 9 | — | unknown | 02:55–03:40 (marginal, 0.75 h) | 79.1° 08:50 | 4.42 | 96% | 97.1° |
| 2035-06-23 Sat | 8 | — | unknown | 02:55–03:40 (marginal, 0.75 h) | 79.1° 08:50 | 4.43 | 91% | 86.1° |
| 2035-06-24 Sun | 8 | — | unknown | 02:50–03:40 (marginal, 0.83 h) | 79.1° 08:45 | 4.43 | 85% | 75.1° |
| 2035-06-25 Mon | 9 | — | unknown | 02:50–03:40 (marginal, 0.83 h) | 79.1° 08:40 | 4.44 | 78% | 64.0° |
| 2035-06-26 Tue | 10 | — | unknown | 02:45–03:40 (marginal, 0.92 h) | 79.1° 08:35 | 4.45 | 69% | 53.0° |
| 2035-06-27 Wed | 11 | — | unknown | 02:40–03:40 (marginal, 1.0 h) | 79.1° 08:30 | 4.47 | 59% | 42.3° |
| 2035-06-28 Thu | 14 | — | unknown | 02:30–04:35 (marginal, 2.08 h) | 79.1° 08:30 | 4.48 | 48% | 32.5° |
| 2035-06-29 Fri | 17 | — | unknown | 03:15–03:40 (good, 0.42 h) | 79.1° 08:25 | 4.5 | 38% | 25.3° |
| 2035-06-30 Sat | 21 | — | unknown | 03:05–03:45 (good, 0.67 h) | 79.1° 08:20 | 4.51 | 27% | 23.9° |
| 2035-07-01 Sun | 27 | — | unknown | 02:50–03:45 (good, 0.92 h) | 79.1° 08:15 | 4.53 | 17% | 29.8° |
| 2035-07-02 Mon | 31 | — | unknown | 02:45–03:45 (good, 1.0 h) | 79.1° 08:15 | 4.56 | 9% | 40.1° |
| 2035-07-03 Tue | 32 | — | unknown | 02:40–03:45 (good, 1.08 h) | 79.1° 08:10 | 4.58 | 4% | 52.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-06-04&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.