← 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. |
|---|---|---|---|---|---|---|---|---|
| 2029-07-03 Tue | 0 | — | unknown | — | 72.5° 10:20 | 4.59 | 48% | 45.3° |
| 2029-07-04 Wed | 0 | — | unknown | — | 72.5° 10:15 | 4.62 | 39% | 33.5° |
| 2029-07-05 Thu | 0 | — | unknown | — | 72.5° 10:10 | 4.65 | 30% | 21.6° |
| 2029-07-06 Fri | 0 | — | unknown | — | 72.5° 10:05 | 4.68 | 21% | 9.7° |
| 2029-07-07 Sat | 1 | — | unknown | — | 72.5° 10:05 | 4.71 | 14% | 2.8° |
| 2029-07-08 Sun | 1 | — | unknown | — | 72.5° 10:00 | 4.74 | 8% | 15.0° |
| 2029-07-09 Mon | 1 | — | unknown | — | 72.5° 09:55 | 4.77 | 3% | 27.6° |
| 2029-07-10 Tue | 1 | — | unknown | — | 72.5° 09:50 | 4.81 | 1% | 40.6° |
| 2029-07-11 Wed | 2 | — | unknown | 04:40–04:45 (marginal, 0.08 h) | 72.5° 09:45 | 4.85 | 0% | 53.8° |
| 2029-07-12 Thu | 2 | — | unknown | 04:40–04:45 (marginal, 0.08 h) | 72.5° 09:45 | 4.89 | 2% | 67.3° |
| 2029-07-13 Fri | 2 | — | unknown | 04:35–04:45 (marginal, 0.17 h) | 72.5° 09:40 | 4.93 | 6% | 81.0° |
| 2029-07-14 Sat | 3 | — | unknown | 04:30–04:45 (marginal, 0.25 h) | 72.5° 09:35 | 4.97 | 13% | 94.9° |
| 2029-07-15 Sun | 3 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 72.5° 09:30 | 5.01 | 21% | 109.0° |
| 2029-07-16 Mon | 4 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 72.5° 09:30 | 5.05 | 31% | 123.1° |
| 2029-07-17 Tue | 5 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 72.5° 09:25 | 5.1 | 42% | 137.3° |
| 2029-07-18 Wed | 7 | — | unknown | 04:15–04:50 (marginal, 0.58 h) | 72.5° 09:20 | 5.14 | 54% | 151.4° |
| 2029-07-19 Thu | 7 | — | unknown | 04:10–04:55 (marginal, 0.75 h) | 72.5° 09:15 | 5.19 | 65% | 165.6° |
| 2029-07-20 Fri | 9 | — | unknown | 03:40–04:55 (marginal, 1.25 h) | 72.5° 09:10 | 5.24 | 76% | 178.9° |
| 2029-07-21 Sat | 11 | — | unknown | 04:00–04:10 (good, 0.17 h) | 72.5° 09:10 | 5.29 | 85% | 166.1° |
| 2029-07-22 Sun | 12 | — | unknown | 04:00–04:10 (good, 0.17 h) | 72.5° 09:05 | 5.34 | 92% | 152.2° |
| 2029-07-23 Mon | 13 | — | unknown | 04:00–04:10 (good, 0.17 h) | 72.5° 09:00 | 5.39 | 97% | 138.5° |
| 2029-07-24 Tue | 14 | — | unknown | 04:00–04:15 (good, 0.25 h) | 72.5° 08:55 | 5.44 | 100% | 125.0° |
| 2029-07-25 Wed | 14 | — | unknown | 04:00–04:15 (good, 0.25 h) | 72.5° 08:50 | 5.49 | 100% | 111.7° |
| 2029-07-26 Thu | 12 | — | unknown | 04:10–04:15 (good, 0.08 h) | 72.5° 08:50 | 5.54 | 98% | 98.7° |
| 2029-07-27 Fri | 11 | — | unknown | 03:15–04:20 (marginal, 1.08 h) | 72.5° 08:45 | 5.59 | 94% | 86.0° |
| 2029-07-28 Sat | 10 | — | unknown | 03:20–04:20 (marginal, 1.0 h) | 72.5° 08:40 | 5.65 | 88% | 73.5° |
| 2029-07-29 Sun | 9 | — | unknown | 03:20–04:20 (marginal, 1.0 h) | 72.5° 08:35 | 5.7 | 81% | 61.3° |
| 2029-07-30 Mon | 9 | — | unknown | 03:15–04:25 (marginal, 1.17 h) | 72.5° 08:35 | 5.75 | 73% | 49.3° |
| 2029-07-31 Tue | 10 | — | unknown | 03:10–04:25 (marginal, 1.25 h) | 72.5° 08:30 | 5.81 | 64% | 37.4° |
| 2029-08-01 Wed | 12 | — | unknown | 03:00–04:25 (marginal, 1.42 h) | 72.5° 08:25 | 5.86 | 55% | 25.6° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2029-07-03&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.