← 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. |
|---|---|---|---|---|---|---|---|---|
| 2033-06-20 Mon | 22 | — | unknown | 23:15–23:45 (good, 0.5 h) | 50.2° 19:55 | 4.42 | 39% | 171.5° |
| 2033-06-21 Tue | 20 | — | unknown | 23:15–23:45 (good, 0.5 h) | 50.2° 19:50 | 4.42 | 28% | 158.9° |
| 2033-06-22 Wed | 18 | — | unknown | 23:15–23:40 (good, 0.42 h) | 50.2° 19:45 | 4.43 | 19% | 145.1° |
| 2033-06-23 Thu | 17 | — | unknown | 23:15–23:35 (good, 0.33 h) | 50.2° 19:45 | 4.43 | 11% | 131.1° |
| 2033-06-24 Fri | 15 | — | unknown | 23:15–23:30 (good, 0.25 h) | 50.2° 19:40 | 4.44 | 5% | 117.2° |
| 2033-06-25 Sat | 14 | — | unknown | 23:15–23:25 (good, 0.17 h) | 50.2° 19:35 | 4.45 | 1% | 103.5° |
| 2033-06-26 Sun | 12 | — | unknown | 23:15–23:25 (good, 0.17 h) | 50.2° 19:30 | 4.46 | 0% | 90.0° |
| 2033-06-27 Mon | 11 | — | unknown | 23:15–23:20 (good, 0.08 h) | 50.2° 19:25 | 4.47 | 2% | 76.8° |
| 2033-06-28 Tue | 11 | — | unknown | 23:10–23:15 (good, 0.08 h) | 50.2° 19:25 | 4.49 | 5% | 63.9° |
| 2033-06-29 Wed | 10 | — | unknown | 22:20–23:40 (marginal, 1.33 h) | 50.2° 19:20 | 4.5 | 10% | 51.3° |
| 2033-06-30 Thu | 8 | — | unknown | 22:20–23:00 (marginal, 0.67 h) | 50.2° 19:15 | 4.52 | 17% | 39.0° |
| 2033-07-01 Fri | 6 | — | unknown | 22:20–22:55 (marginal, 0.58 h) | 50.2° 19:10 | 4.54 | 25% | 27.0° |
| 2033-07-02 Sat | 5 | — | unknown | 23:10–23:30 (marginal, 0.33 h) | 50.2° 19:10 | 4.57 | 33% | 15.5° |
| 2033-07-03 Sun | 4 | — | unknown | 23:10–23:25 (marginal, 0.25 h) | 50.2° 19:05 | 4.59 | 43% | 6.3° |
| 2033-07-04 Mon | 3 | — | unknown | 23:10–23:20 (marginal, 0.17 h) | 50.2° 19:00 | 4.62 | 52% | 10.9° |
| 2033-07-05 Tue | 2 | — | unknown | — | 50.2° 18:55 | 4.65 | 62% | 21.9° |
| 2033-07-06 Wed | 1 | — | unknown | — | 50.2° 18:50 | 4.68 | 71% | 33.7° |
| 2033-07-07 Thu | 1 | — | unknown | — | 50.2° 18:50 | 4.71 | 79% | 45.8° |
| 2033-07-08 Fri | 1 | — | unknown | — | 50.2° 18:45 | 4.74 | 87% | 58.2° |
| 2033-07-09 Sat | 1 | — | unknown | — | 50.2° 18:40 | 4.78 | 93% | 71.0° |
| 2033-07-10 Sun | 1 | — | unknown | — | 50.2° 18:35 | 4.81 | 97% | 84.2° |
| 2033-07-11 Mon | 1 | — | unknown | — | 50.2° 18:30 | 4.85 | 100% | 97.6° |
| 2033-07-12 Tue | 1 | — | unknown | — | 50.2° 18:30 | 4.89 | 99% | 111.4° |
| 2033-07-13 Wed | 1 | — | unknown | — | 50.2° 18:25 | 4.93 | 97% | 125.4° |
| 2033-07-14 Thu | 1 | — | unknown | 22:10–22:15 (marginal, 0.08 h) | 50.2° 18:20 | 4.97 | 92% | 139.6° |
| 2033-07-15 Fri | 1 | — | unknown | — | 50.2° 18:15 | 5.01 | 84% | 153.7° |
| 2033-07-16 Sat | 1 | — | unknown | — | 50.2° 18:15 | 5.06 | 75% | 167.3° |
| 2033-07-17 Sun | 1 | — | unknown | — | 50.2° 18:10 | 5.1 | 64% | 173.6° |
| 2033-07-18 Mon | 1 | — | unknown | — | 50.2° 18:05 | 5.15 | 53% | 161.9° |
| 2033-07-19 Tue | 1 | — | unknown | — | 50.2° 18:00 | 5.19 | 41% | 148.3° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2033-06-20&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.