← 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. |
|---|---|---|---|---|---|---|---|---|
| 2034-06-25 Sun | 0 | — | unknown | — | 72.5° 10:50 | 4.45 | 72% | 149.5° |
| 2034-06-26 Mon | 0 | — | unknown | — | 72.5° 10:45 | 4.46 | 80% | 160.5° |
| 2034-06-27 Tue | 0 | — | unknown | — | 72.5° 10:45 | 4.47 | 87% | 169.7° |
| 2034-06-28 Wed | 0 | — | unknown | — | 72.5° 10:40 | 4.48 | 92% | 169.5° |
| 2034-06-29 Thu | 0 | — | unknown | — | 72.5° 10:35 | 4.5 | 97% | 159.9° |
| 2034-06-30 Fri | 0 | — | unknown | — | 72.5° 10:30 | 4.52 | 99% | 148.5° |
| 2034-07-01 Sat | 0 | — | unknown | — | 72.5° 10:30 | 4.54 | 100% | 136.5° |
| 2034-07-02 Sun | 0 | — | unknown | — | 72.5° 10:25 | 4.56 | 98% | 124.1° |
| 2034-07-03 Mon | 0 | — | unknown | — | 72.5° 10:20 | 4.59 | 95% | 111.5° |
| 2034-07-04 Tue | 0 | — | unknown | — | 72.5° 10:15 | 4.61 | 89% | 98.7° |
| 2034-07-05 Wed | 0 | — | unknown | — | 72.5° 10:10 | 4.64 | 82% | 85.6° |
| 2034-07-06 Thu | 0 | — | unknown | — | 72.5° 10:10 | 4.67 | 73% | 72.3° |
| 2034-07-07 Fri | 0 | — | unknown | — | 72.5° 10:05 | 4.7 | 63% | 58.8° |
| 2034-07-08 Sat | 0 | — | unknown | — | 72.5° 10:00 | 4.73 | 52% | 45.2° |
| 2034-07-09 Sun | 0 | — | unknown | — | 72.5° 09:55 | 4.77 | 40% | 31.5° |
| 2034-07-10 Mon | 1 | — | unknown | — | 72.5° 09:50 | 4.8 | 29% | 18.2° |
| 2034-07-11 Tue | 1 | — | unknown | — | 72.5° 09:50 | 4.84 | 19% | 8.8° |
| 2034-07-12 Wed | 2 | — | unknown | — | 72.5° 09:45 | 4.88 | 11% | 15.5° |
| 2034-07-13 Thu | 2 | — | unknown | 04:35–04:45 (marginal, 0.17 h) | 72.5° 09:40 | 4.92 | 5% | 28.7° |
| 2034-07-14 Fri | 2 | — | unknown | 04:30–04:45 (marginal, 0.25 h) | 72.5° 09:35 | 4.96 | 1% | 42.7° |
| 2034-07-15 Sat | 3 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 72.5° 09:35 | 5.0 | 0% | 56.7° |
| 2034-07-16 Sun | 4 | — | unknown | 04:25–04:50 (marginal, 0.42 h) | 72.5° 09:30 | 5.04 | 2% | 70.4° |
| 2034-07-17 Mon | 5 | — | unknown | 04:20–04:50 (marginal, 0.5 h) | 72.5° 09:25 | 5.09 | 6% | 83.9° |
| 2034-07-18 Tue | 6 | — | unknown | 04:15–04:50 (marginal, 0.58 h) | 72.5° 09:20 | 5.13 | 12% | 97.0° |
| 2034-07-19 Wed | 7 | — | unknown | 04:10–04:55 (marginal, 0.75 h) | 72.5° 09:15 | 5.18 | 19% | 109.8° |
| 2034-07-20 Thu | 8 | — | unknown | 03:40–04:55 (marginal, 1.25 h) | 72.5° 09:15 | 5.23 | 28% | 122.1° |
| 2034-07-21 Fri | 11 | — | unknown | 04:05–04:10 (good, 0.08 h) | 72.5° 09:10 | 5.28 | 37% | 134.1° |
| 2034-07-22 Sat | 12 | — | unknown | 04:00–04:10 (good, 0.17 h) | 72.5° 09:05 | 5.33 | 47% | 145.8° |
| 2034-07-23 Sun | 13 | — | unknown | 03:55–04:10 (good, 0.25 h) | 72.5° 09:00 | 5.38 | 56% | 157.1° |
| 2034-07-24 Mon | 17 | — | unknown | 03:50–04:15 (good, 0.42 h) | 72.5° 08:55 | 5.43 | 65% | 167.2° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2034-06-25&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.