← 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. |
|---|---|---|---|---|---|---|---|---|
| 2048-03-07 Sat | 18 | — | unknown | 19:55–20:25 (good, 0.5 h) | 79.2° 14:55 | 9.34 | 44% | 126.6° |
| 2048-03-08 Sun | 16 | — | unknown | 19:55–20:25 (good, 0.5 h) | 79.2° 14:50 | 9.29 | 34% | 113.3° |
| 2048-03-09 Mon | 14 | — | unknown | 19:55–20:20 (good, 0.42 h) | 79.2° 14:45 | 9.24 | 23% | 99.9° |
| 2048-03-10 Tue | 12 | — | unknown | 20:00–20:15 (good, 0.25 h) | 79.2° 14:40 | 9.19 | 15% | 86.6° |
| 2048-03-11 Wed | 11 | — | unknown | 20:00–20:10 (good, 0.17 h) | 79.2° 14:40 | 9.14 | 8% | 73.6° |
| 2048-03-12 Thu | 9 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.2° 14:35 | 9.09 | 3% | 60.7° |
| 2048-03-13 Fri | 8 | — | unknown | 20:00–20:05 (good, 0.08 h) | 79.2° 14:30 | 9.04 | 1% | 48.2° |
| 2048-03-14 Sat | 7 | — | unknown | 19:30–20:30 (marginal, 1.0 h) | 79.2° 14:25 | 8.99 | 0% | 36.3° |
| 2048-03-15 Sun | 5 | — | unknown | 20:05–20:25 (marginal, 0.33 h) | 79.2° 14:20 | 8.94 | 2% | 25.5° |
| 2048-03-16 Mon | 4 | — | unknown | 20:05–20:20 (marginal, 0.25 h) | 79.2° 14:20 | 8.89 | 6% | 17.1° |
| 2048-03-17 Tue | 3 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 79.2° 14:15 | 8.84 | 11% | 15.5° |
| 2048-03-18 Wed | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 79.2° 14:10 | 8.79 | 18% | 21.8° |
| 2048-03-19 Thu | 1 | — | unknown | — | 79.2° 14:05 | 8.74 | 25% | 31.4° |
| 2048-03-20 Fri | 1 | — | unknown | — | 79.2° 14:05 | 8.69 | 34% | 42.0° |
| 2048-03-21 Sat | 0 | — | unknown | — | 79.2° 14:00 | 8.64 | 43% | 53.1° |
| 2048-03-22 Sun | 0 | — | unknown | — | 79.2° 13:55 | 8.58 | 52% | 64.4° |
| 2048-03-23 Mon | 0 | — | unknown | — | 79.2° 13:50 | 8.53 | 62% | 76.1° |
| 2048-03-24 Tue | 0 | — | unknown | — | 79.2° 13:45 | 8.48 | 71% | 88.0° |
| 2048-03-25 Wed | 0 | — | unknown | — | 79.2° 13:45 | 8.42 | 80% | 100.3° |
| 2048-03-26 Thu | 0 | — | unknown | — | 79.2° 13:40 | 8.37 | 88% | 112.9° |
| 2048-03-27 Fri | 0 | — | unknown | — | 79.2° 13:35 | 8.32 | 94% | 125.7° |
| 2048-03-28 Sat | 0 | — | unknown | — | 79.2° 13:30 | 8.26 | 98% | 138.8° |
| 2048-03-29 Sun | 0 | — | unknown | — | 79.2° 14:25 | 8.21 | 100% | 151.4° |
| 2048-03-30 Mon | 0 | — | unknown | — | 79.2° 14:25 | 8.15 | 99% | 161.9° |
| 2048-03-31 Tue | 0 | — | unknown | — | 79.2° 14:20 | 8.1 | 95% | 164.2° |
| 2048-04-01 Wed | 0 | — | unknown | — | 79.2° 14:15 | 8.05 | 89% | 155.6° |
| 2048-04-02 Thu | 0 | — | unknown | — | 79.2° 14:10 | 7.99 | 80% | 143.2° |
| 2048-04-03 Fri | 0 | — | unknown | — | 79.2° 14:10 | 7.93 | 70% | 129.8° |
| 2048-04-04 Sat | 0 | — | unknown | — | 79.2° 14:05 | 7.88 | 59% | 116.3° |
| 2048-04-05 Sun | 0 | — | unknown | — | 79.2° 14:00 | 7.82 | 48% | 102.8° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2048-03-07&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.