← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-01-19 Thu | 0 | — | unknown | — | 71.1° 12:30 | 11.13 | 0% | 39.6° |
| 2034-01-20 Fri | 0 | — | unknown | — | 71.1° 12:25 | 11.11 | 0% | 37.9° |
| 2034-01-21 Sat | 0 | — | unknown | — | 71.1° 12:20 | 11.08 | 3% | 40.3° |
| 2034-01-22 Sun | 0 | — | unknown | — | 71.1° 12:15 | 11.05 | 8% | 46.2° |
| 2034-01-23 Mon | 0 | — | unknown | — | 71.1° 12:10 | 11.03 | 15% | 54.6° |
| 2034-01-24 Tue | 0 | — | unknown | — | 71.1° 12:10 | 11.0 | 24% | 64.5° |
| 2034-01-25 Wed | 0 | — | unknown | — | 71.1° 12:00 | 10.97 | 34% | 75.2° |
| 2034-01-26 Thu | 0 | — | unknown | — | 71.1° 12:00 | 10.94 | 45% | 86.3° |
| 2034-01-27 Fri | 1 | — | unknown | — | 71.1° 11:50 | 10.91 | 57% | 97.4° |
| 2034-01-28 Sat | 1 | — | unknown | — | 71.1° 11:50 | 10.88 | 68% | 108.3° |
| 2034-01-29 Sun | 1 | — | unknown | — | 71.1° 11:45 | 10.85 | 78% | 118.6° |
| 2034-01-30 Mon | 1 | — | unknown | — | 71.1° 11:40 | 10.82 | 86% | 128.0° |
| 2034-01-31 Tue | 1 | — | unknown | — | 71.1° 11:35 | 10.79 | 93% | 135.6° |
| 2034-02-01 Wed | 1 | — | unknown | — | 71.1° 11:35 | 10.76 | 97% | 140.6° |
| 2034-02-02 Thu | 1 | — | unknown | — | 71.1° 11:30 | 10.72 | 100% | 142.0° |
| 2034-02-03 Fri | 2 | — | unknown | 05:55–06:00 (marginal, 0.08 h) | 71.1° 11:25 | 10.69 | 100% | 139.7° |
| 2034-02-04 Sat | 2 | — | unknown | 05:50–05:55 (marginal, 0.08 h) | 71.1° 11:20 | 10.65 | 98% | 134.3° |
| 2034-02-05 Sun | 2 | — | unknown | 05:50–05:55 (marginal, 0.08 h) | 71.1° 11:15 | 10.62 | 94% | 127.0° |
| 2034-02-06 Mon | 3 | — | unknown | 05:45–05:55 (marginal, 0.17 h) | 71.1° 11:15 | 10.58 | 88% | 118.6° |
| 2034-02-07 Tue | 3 | — | unknown | 05:40–05:55 (marginal, 0.25 h) | 71.1° 11:10 | 10.55 | 81% | 109.7° |
| 2034-02-08 Wed | 3 | — | unknown | 05:35–05:55 (marginal, 0.33 h) | 71.1° 11:05 | 10.51 | 73% | 100.5° |
| 2034-02-09 Thu | 3 | — | unknown | 05:35–05:50 (marginal, 0.25 h) | 71.1° 11:00 | 10.47 | 64% | 91.2° |
| 2034-02-10 Fri | 4 | — | unknown | 05:30–05:50 (marginal, 0.33 h) | 71.1° 10:55 | 10.44 | 55% | 81.8° |
| 2034-02-11 Sat | 4 | — | unknown | 05:25–05:50 (marginal, 0.42 h) | 71.1° 10:55 | 10.4 | 46% | 72.6° |
| 2034-02-12 Sun | 6 | — | unknown | 05:20–05:50 (marginal, 0.5 h) | 71.1° 10:50 | 10.36 | 36% | 63.6° |
| 2034-02-13 Mon | 6 | — | unknown | 05:15–05:45 (marginal, 0.5 h) | 71.1° 10:45 | 10.32 | 27% | 55.0° |
| 2034-02-14 Tue | 7 | — | unknown | 05:15–06:20 (marginal, 1.08 h) | 71.1° 10:40 | 10.28 | 18% | 47.3° |
| 2034-02-15 Wed | 9 | — | unknown | 05:40–05:45 (good, 0.08 h) | 71.1° 10:40 | 10.24 | 11% | 41.2° |
| 2034-02-16 Thu | 11 | — | unknown | 05:30–05:45 (good, 0.25 h) | 71.1° 10:35 | 10.2 | 5% | 38.1° |
| 2034-02-17 Fri | 11 | — | unknown | 05:30–05:40 (good, 0.17 h) | 71.1° 10:30 | 10.16 | 2% | 38.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-01-19&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.