← 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. |
|---|---|---|---|---|---|---|---|---|
| 2035-05-08 Tue | 88 | — | unknown | 01:00–04:20 (good, 3.33 h) | 87.3° 07:15 | 5.97 | 2% | 91.1° |
| 2035-05-09 Wed | 89 | — | unknown | 00:55–04:15 (good, 3.33 h) | 87.3° 07:10 | 5.92 | 7% | 99.2° |
| 2035-05-10 Thu | 91 | — | unknown | 00:50–04:15 (good, 3.42 h) | 87.3° 07:05 | 5.86 | 14% | 106.8° |
| 2035-05-11 Fri | 92 | — | unknown | 00:45–04:15 (good, 3.5 h) | 87.3° 07:00 | 5.81 | 23% | 113.4° |
| 2035-05-12 Sat | 92 | — | unknown | 00:45–04:10 (good, 3.42 h) | 87.3° 07:00 | 5.75 | 33% | 118.5° |
| 2035-05-13 Sun | 93 | — | unknown | 00:45–04:10 (good, 3.42 h) | 87.3° 06:55 | 5.7 | 44% | 121.8° |
| 2035-05-14 Mon | 94 | — | unknown | 00:40–04:10 (good, 3.5 h) | 87.3° 06:50 | 5.64 | 55% | 123.1° |
| 2035-05-15 Tue | 92 | — | unknown | 00:40–04:05 (good, 3.42 h) | 87.3° 06:45 | 5.59 | 66% | 122.4° |
| 2035-05-16 Wed | 92 | — | unknown | 00:40–04:05 (good, 3.42 h) | 87.3° 06:40 | 5.53 | 75% | 119.8° |
| 2035-05-17 Thu | 83 | — | unknown | 00:40–04:05 (good, 3.42 h) | 87.3° 06:40 | 5.48 | 83% | 115.8° |
| 2035-05-18 Fri | 78 | — | unknown | 00:40–04:05 (good, 3.42 h) | 87.3° 06:35 | 5.43 | 90% | 110.7° |
| 2035-05-19 Sat | 70 | — | unknown | 00:40–04:00 (good, 3.33 h) | 87.3° 06:30 | 5.38 | 95% | 104.8° |
| 2035-05-20 Sun | 64 | — | unknown | 00:45–04:00 (good, 3.25 h) | 87.3° 06:25 | 5.33 | 98% | 98.5° |
| 2035-05-21 Mon | 58 | — | unknown | 01:10–04:00 (good, 2.83 h) | 87.3° 06:25 | 5.28 | 100% | 92.0° |
| 2035-05-22 Tue | 53 | — | unknown | 01:35–03:55 (good, 2.33 h) | 87.3° 06:20 | 5.23 | 99% | 85.5° |
| 2035-05-23 Wed | 50 | — | unknown | 01:50–03:55 (good, 2.08 h) | 87.3° 06:15 | 5.18 | 97% | 79.2° |
| 2035-05-24 Thu | 48 | — | unknown | 01:50–03:55 (good, 2.08 h) | 87.3° 06:10 | 5.14 | 93% | 73.3° |
| 2035-05-25 Fri | 50 | — | unknown | 01:15–03:55 (good, 2.67 h) | 87.3° 06:05 | 5.09 | 88% | 67.9° |
| 2035-05-26 Sat | 57 | — | unknown | 00:20–03:50 (good, 3.5 h) | 87.3° 06:05 | 5.05 | 81% | 63.3° |
| 2035-05-27 Sun | 73 | — | unknown | 23:45–03:50 (good, 4.08 h) | 87.3° 06:00 | 5.0 | 73% | 59.8° |
| 2035-05-28 Mon | 83 | — | unknown | 23:40–03:50 (good, 4.17 h) | 87.3° 05:55 | 4.96 | 64% | 57.6° |
| 2035-05-29 Tue | 91 | — | unknown | 23:35–03:50 (good, 4.25 h) | 87.3° 05:50 | 4.92 | 54% | 57.0° |
| 2035-05-30 Wed | 96 | — | unknown | 23:35–03:45 (good, 4.17 h) | 87.3° 05:45 | 4.88 | 44% | 58.3° |
| 2035-05-31 Thu | 100 | — | unknown | 23:30–03:45 (good, 4.25 h) | 87.3° 05:45 | 4.84 | 33% | 61.3° |
| 2035-06-01 Fri | 100 | — | unknown | 23:25–03:45 (good, 4.33 h) | 87.3° 05:40 | 4.8 | 24% | 66.1° |
| 2035-06-02 Sat | 100 | — | unknown | 23:20–03:45 (good, 4.42 h) | 87.3° 05:35 | 4.77 | 15% | 72.2° |
| 2035-06-03 Sun | 100 | — | unknown | 23:15–03:45 (good, 4.5 h) | 87.3° 05:30 | 4.73 | 7% | 79.5° |
| 2035-06-04 Mon | 100 | — | unknown | 23:15–03:45 (good, 4.5 h) | 87.3° 05:30 | 4.7 | 2% | 87.4° |
| 2035-06-05 Tue | 100 | — | unknown | 23:10–03:40 (good, 4.5 h) | 87.3° 05:25 | 4.67 | 0% | 95.7° |
| 2035-06-06 Wed | 100 | — | unknown | 23:05–03:40 (good, 4.58 h) | 87.3° 05:20 | 4.64 | 1% | 103.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-05-08&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.