← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-04-07 Sat | 52 | — | unknown | 03:15–05:20 (good, 2.08 h) | 71.1° 08:20 | 7.76 | 0% | 71.5° |
| 2035-04-08 Sun | 52 | — | unknown | 03:15–05:15 (good, 2.0 h) | 71.1° 08:15 | 7.7 | 0% | 82.4° |
| 2035-04-09 Mon | 54 | — | unknown | 03:10–05:15 (good, 2.08 h) | 71.1° 08:10 | 7.65 | 3% | 93.7° |
| 2035-04-10 Tue | 53 | — | unknown | 03:05–05:10 (good, 2.08 h) | 71.1° 08:05 | 7.59 | 8% | 104.9° |
| 2035-04-11 Wed | 55 | — | unknown | 03:00–05:10 (good, 2.17 h) | 71.1° 08:00 | 7.53 | 16% | 115.7° |
| 2035-04-12 Thu | 56 | — | unknown | 02:55–05:10 (good, 2.25 h) | 71.1° 08:00 | 7.48 | 26% | 125.6° |
| 2035-04-13 Fri | 57 | — | unknown | 02:55–05:05 (good, 2.17 h) | 71.1° 07:55 | 7.42 | 37% | 133.7° |
| 2035-04-14 Sat | 58 | — | unknown | 02:50–05:05 (good, 2.25 h) | 71.1° 07:50 | 7.36 | 48% | 139.2° |
| 2035-04-15 Sun | 57 | — | unknown | 02:50–05:00 (good, 2.17 h) | 71.1° 07:45 | 7.3 | 59% | 140.9° |
| 2035-04-16 Mon | 57 | — | unknown | 02:45–05:00 (good, 2.25 h) | 71.1° 07:45 | 7.25 | 70% | 138.7° |
| 2035-04-17 Tue | 58 | — | unknown | 02:45–05:00 (good, 2.25 h) | 71.1° 07:40 | 7.19 | 79% | 133.3° |
| 2035-04-18 Wed | 53 | — | unknown | 02:45–04:55 (good, 2.17 h) | 71.1° 07:35 | 7.13 | 87% | 125.8° |
| 2035-04-19 Thu | 50 | — | unknown | 02:40–04:55 (good, 2.25 h) | 71.1° 07:30 | 7.07 | 93% | 117.1° |
| 2035-04-20 Fri | 45 | — | unknown | 02:45–04:55 (good, 2.17 h) | 71.1° 07:25 | 7.01 | 97% | 107.8° |
| 2035-04-21 Sat | 39 | — | unknown | 02:50–04:50 (good, 2.0 h) | 71.1° 07:25 | 6.96 | 100% | 98.2° |
| 2035-04-22 Sun | 34 | — | unknown | 03:25–04:50 (good, 1.42 h) | 71.1° 07:20 | 6.9 | 100% | 88.6° |
| 2035-04-23 Mon | 30 | — | unknown | 04:00–04:45 (good, 0.75 h) | 71.1° 07:15 | 6.84 | 98% | 79.2° |
| 2035-04-24 Tue | 27 | — | unknown | 04:30–04:45 (good, 0.25 h) | 71.1° 07:10 | 6.78 | 94% | 70.1° |
| 2035-04-25 Wed | 26 | — | unknown | 01:50–04:45 (marginal, 2.92 h) | 71.1° 07:05 | 6.72 | 90% | 61.5° |
| 2035-04-26 Thu | 26 | — | unknown | 01:40–04:40 (marginal, 3.0 h) | 71.1° 07:05 | 6.67 | 83% | 53.7° |
| 2035-04-27 Fri | 29 | — | unknown | 04:30–04:40 (good, 0.17 h) | 71.1° 07:00 | 6.61 | 75% | 47.0° |
| 2035-04-28 Sat | 33 | — | unknown | 03:05–04:35 (good, 1.5 h) | 71.1° 06:55 | 6.55 | 67% | 42.0° |
| 2035-04-29 Sun | 42 | — | unknown | 01:50–04:35 (good, 2.75 h) | 71.1° 06:50 | 6.49 | 57% | 39.4° |
| 2035-04-30 Mon | 55 | — | unknown | 01:45–04:35 (good, 2.83 h) | 71.1° 06:50 | 6.43 | 48% | 39.8° |
| 2035-05-01 Tue | 63 | — | unknown | 01:40–04:30 (good, 2.83 h) | 71.1° 06:45 | 6.37 | 38% | 43.3° |
| 2035-05-02 Wed | 70 | — | unknown | 01:40–04:30 (good, 2.83 h) | 71.1° 06:40 | 6.32 | 28% | 49.4° |
| 2035-05-03 Thu | 77 | — | unknown | 01:35–04:30 (good, 2.92 h) | 71.1° 06:35 | 6.26 | 19% | 57.5° |
| 2035-05-04 Fri | 77 | — | unknown | 01:30–04:25 (good, 2.92 h) | 71.1° 06:30 | 6.2 | 11% | 67.1° |
| 2035-05-05 Sat | 79 | — | unknown | 01:25–04:25 (good, 3.0 h) | 71.1° 06:30 | 6.14 | 5% | 77.7° |
| 2035-05-06 Sun | 81 | — | unknown | 01:25–04:25 (good, 3.0 h) | 71.1° 06:25 | 6.09 | 1% | 88.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-04-07&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.