← 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. |
|---|---|---|---|---|---|---|---|---|
| 2046-02-26 Mon | 35 | — | unknown | 19:45–21:05 (good, 1.33 h) | 79.2° 15:30 | 9.77 | 58% | 150.8° |
| 2046-02-27 Tue | 33 | — | unknown | 19:45–21:00 (good, 1.25 h) | 79.2° 15:25 | 9.73 | 47% | 138.9° |
| 2046-02-28 Wed | 31 | — | unknown | 19:45–20:55 (good, 1.17 h) | 79.2° 15:25 | 9.69 | 37% | 126.9° |
| 2046-03-01 Thu | 29 | — | unknown | 19:45–20:50 (good, 1.08 h) | 79.2° 15:20 | 9.64 | 28% | 114.9° |
| 2046-03-02 Fri | 28 | — | unknown | 19:45–20:50 (good, 1.08 h) | 79.2° 15:15 | 9.59 | 20% | 103.1° |
| 2046-03-03 Sat | 26 | — | unknown | 19:50–20:45 (good, 0.92 h) | 79.2° 15:10 | 9.55 | 12% | 91.4° |
| 2046-03-04 Sun | 24 | — | unknown | 19:50–20:40 (good, 0.83 h) | 79.2° 15:10 | 9.5 | 7% | 79.8° |
| 2046-03-05 Mon | 23 | — | unknown | 19:50–20:35 (good, 0.75 h) | 79.2° 15:05 | 9.45 | 3% | 68.3° |
| 2046-03-06 Tue | 21 | — | unknown | 19:50–20:30 (good, 0.67 h) | 79.2° 15:00 | 9.41 | 1% | 57.0° |
| 2046-03-07 Wed | 19 | — | unknown | 19:55–20:30 (good, 0.58 h) | 79.2° 14:55 | 9.36 | 0% | 45.8° |
| 2046-03-08 Thu | 18 | — | unknown | 19:55–20:25 (good, 0.5 h) | 79.2° 14:50 | 9.31 | 1% | 34.8° |
| 2046-03-09 Fri | 15 | — | unknown | 19:55–20:20 (good, 0.42 h) | 79.2° 14:50 | 9.26 | 4% | 24.6° |
| 2046-03-10 Sat | 13 | — | unknown | 19:55–20:15 (good, 0.33 h) | 79.2° 14:45 | 9.22 | 9% | 16.4° |
| 2046-03-11 Sun | 9 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.2° 14:40 | 9.17 | 15% | 14.8° |
| 2046-03-12 Mon | 7 | — | unknown | 20:00–20:40 (marginal, 0.67 h) | 79.2° 14:35 | 9.12 | 23% | 21.4° |
| 2046-03-13 Tue | 5 | — | unknown | 20:00–20:35 (marginal, 0.58 h) | 79.2° 14:30 | 9.07 | 32% | 31.7° |
| 2046-03-14 Wed | 4 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 79.2° 14:30 | 9.02 | 42% | 43.4° |
| 2046-03-15 Thu | 3 | — | unknown | 20:05–20:20 (marginal, 0.25 h) | 79.2° 14:25 | 8.97 | 52% | 55.8° |
| 2046-03-16 Fri | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.2° 14:20 | 8.92 | 63% | 68.8° |
| 2046-03-17 Sat | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.2° 14:15 | 8.87 | 74% | 82.3° |
| 2046-03-18 Sun | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.2° 14:15 | 8.82 | 83% | 96.3° |
| 2046-03-19 Mon | 1 | — | unknown | — | 79.2° 14:10 | 8.77 | 91% | 110.6° |
| 2046-03-20 Tue | 1 | — | unknown | — | 79.2° 14:05 | 8.71 | 97% | 125.1° |
| 2046-03-21 Wed | 1 | — | unknown | — | 79.2° 14:00 | 8.66 | 100% | 139.4° |
| 2046-03-22 Thu | 1 | — | unknown | — | 79.2° 13:55 | 8.61 | 99% | 153.0° |
| 2046-03-23 Fri | 1 | — | unknown | — | 79.2° 13:55 | 8.56 | 96% | 163.6° |
| 2046-03-24 Sat | 0 | — | unknown | — | 79.2° 13:50 | 8.5 | 90% | 164.3° |
| 2046-03-25 Sun | 0 | — | unknown | — | 79.2° 14:45 | 8.45 | 83% | 155.0° |
| 2046-03-26 Mon | 0 | — | unknown | — | 79.2° 14:40 | 8.4 | 74% | 143.0° |
| 2046-03-27 Tue | 0 | — | unknown | — | 79.2° 14:35 | 8.35 | 64% | 130.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2046-02-26&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.