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Rozhen Night Plan

Up to ten targets, one night: each gets its good/marginal/poor windows (darkness × altitude × Moon × clouds, as on the single-target page), then the night is handed out five minutes at a time to whichever target is best — with hysteresis, so you get a few solid blocks of at least 30 minutes, not a flicker. Targets that never win a block are listed with the reason.

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Night of Thursday, 22 October 2026 · astronomical night 20:02 → 06:09 (10.12 h) · Moon 87% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:25–19:00: unusableM31 19:00–20:05: poorM31 20:05–02:15: marginalM31 02:15–06:10: goodM31 06:10–06:40: poorM31 06:40–07:45: unusableobserve M31 01:35–03:25M42M42 18:25–01:05: unusableM42 01:05–02:05: marginalM42 02:05–06:10: goodM42 06:10–06:45: marginalM42 06:45–07:15: poorM42 07:15–07:45: unusableobserve M42 03:25–05:15M45M45 18:25–21:30: unusableM45 21:30–21:40: poorM45 21:40–00:10: marginalM45 00:10–06:10: goodM45 06:10–06:45: marginalM45 06:45–07:15: poorM45 07:15–07:45: unusableobserve M45 23:45–01:35observe M45 06:25–06:45NGC 7000NGC 7000 18:25–19:00: unusableNGC 7000 19:00–20:05: poorNGC 7000 20:05–03:00: marginalNGC 7000 03:00–03:10: poorNGC 7000 03:10–07:45: unusableobserve NGC 7000 20:05–21:55V1057 CygV1057 Cyg 18:25–19:00: unusableV1057 Cyg 19:00–20:05: poorV1057 Cyg 20:05–03:00: marginalV1057 Cyg 03:00–03:10: poorV1057 Cyg 03:10–07:45: unusableobserve V1057 Cyg 21:55–23:45M33M33 18:25–19:00: unusableM33 19:00–20:05: poorM33 20:05–02:20: marginalM33 02:20–06:10: goodM33 06:10–06:25: marginalM33 06:25–06:50: poorM33 06:50–07:45: unusableobserve M33 05:15–06:25scheduleNGC 7000V1057 CygM45M31M42M3320:0022:0000:0002:0004:0006:00

Faded bands: each target's own windows (green good, amber marginal, pink poor). Dark blue: the schedule. Grey columns: twilight.

Schedule

localtargethoursmean quality
18:25–20:05 — nothing worth pointing at — 1.67
20:05–21:55 NGC 7000 1.83 0.56
21:55–23:45 V1057 Cyg 1.83 0.54
23:45–01:35 M45 1.83 0.63
01:35–03:25 M31 1.83 0.61
03:25–05:15 M42 1.83 0.8
05:15–06:25 M33 1.17 0.7
06:25–06:45 M45 0.33 0.44
06:45–07:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 88 unknown 02:15–06:10 (good) 89.7° at 00:00 49.0° 1.83
M42 Great Orion Nebula 87 unknown 02:05–06:10 (good) 42.9° at 04:50 95.3° 1.83
M45 Seven Sisters 100 unknown 00:10–06:10 (good) 72.5° at 03:05 71.8° 2.17
NGC 7000 North America Nebula 56 unknown 20:05–03:00 (marginal) 87.2° at 20:15 56.2° 1.83
V1057 Cyg 56 unknown 20:05–03:00 (marginal) 87.3° at 20:15 56.1° 1.83
M33 Triangulum Pinwheel 91 unknown 02:20–06:10 (good) 79.1° at 00:50 47.7° 1.17
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-22"

targets: names or RA Dec, separated by commas, semicolons or newlines, at most ten. The response carries targets[] (score, verdict, best_window, windows, transit, moon_separation), schedule[] (blocks with target, start/end in UTC and local, hours, mean_quality; target: null is idle time), unscheduled[] with a why, forecast_source, warnings[]. Missing targets → 400 {"error", "code": "targets_missing"}.