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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 Friday, 23 October 2037 · astronomical night 20:00 → 06:10 (10.17 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:30: quality 0.1M31 19:30–20:05: quality 0.2M31 20:05–21:20: quality 0.5M31 21:20–23:40: quality 0.4M31 23:40–02:30: quality 0.3M31 02:30–05:50: quality 0.4M31 05:50–06:15: quality 0.3M31 06:15–06:35: quality 0.1observe M31 23:10–01:00M42M42 01:00–01:25: quality 0.2M42 01:25–02:00: quality 0.3M42 02:00–04:00: quality 0.4M42 04:00–06:15: quality 0.5M42 06:15–06:45: quality 0.3M42 06:45–07:20: quality 0.1observe M42 03:20–05:10M45M45 21:25–22:00: quality 0.2M45 22:00–03:25: quality 0.3M45 03:25–05:35: quality 0.4M45 05:35–06:15: quality 0.5M45 06:15–06:45: quality 0.2M45 06:45–07:20: quality 0.1observe M45 01:30–03:20NGC 7000NGC 7000 19:00–19:30: quality 0.1NGC 7000 19:30–19:50: quality 0.4NGC 7000 19:50–20:05: quality 0.3NGC 7000 20:05–21:00: quality 0.7NGC 7000 21:00–23:35: quality 0.6NGC 7000 23:35–02:00: quality 0.5NGC 7000 02:00–02:30: quality 0.4NGC 7000 02:30–03:00: quality 0.3NGC 7000 03:00–03:05: quality 0.2observe NGC 7000 19:30–21:20observe NGC 7000 01:00–01:30V1057 CygV1057 Cyg 19:00–19:30: quality 0.1V1057 Cyg 19:30–19:50: quality 0.4V1057 Cyg 19:50–20:05: quality 0.3V1057 Cyg 20:05–21:00: quality 0.7V1057 Cyg 21:00–23:35: quality 0.6V1057 Cyg 23:35–02:00: quality 0.5V1057 Cyg 02:00–02:30: quality 0.4V1057 Cyg 02:30–03:00: quality 0.3V1057 Cyg 03:00–03:05: quality 0.2observe V1057 Cyg 21:20–23:10M33M33 19:20–19:30: quality 0.1M33 19:30–20:05: quality 0.2M33 20:05–22:15: quality 0.4M33 22:15–04:40: quality 0.3M33 04:40–06:00: quality 0.4M33 06:00–06:15: quality 0.3M33 06:15–06:20: quality 0.2M33 06:20–06:45: quality 0.1observe M33 05:10–06:15scheduleNGC 7000V1057 CygM31M45M42M3320:0022:0000:0002:0004:0006:00

Each row is the target's quality through the night, white → amber → green for 0 → 0.3 → 0.6 → 1 (the same thresholds as poor / marginal / good). Dark blue: the schedule. Grey columns: twilight.  Download: schedule CSV · targets CSV · JSON

Schedule

localtargethoursmean quality
18:25–19:30 — nothing worth pointing at — 1.08
19:30–21:20 NGC 7000 1.83 0.56
21:20–23:10 V1057 Cyg 1.83 0.61
23:10–01:00 M31 1.83 0.34
01:00–01:30 NGC 7000 0.5 0.47
01:30–03:20 M45 1.83 0.32
03:20–05:10 M42 1.83 0.46
05:10–06:15 M33 1.08 0.36
06:15–07:45 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 49 unknown 20:05–06:10 (marginal) 89.8° at 23:55 38.3° 1.83
M42 Great Orion Nebula 32 unknown 01:40–06:15 (marginal) 42.9° at 04:45 57.3° 1.83
M45 Seven Sisters 36 unknown 01:10–06:15 (marginal) 72.5° at 03:00 33.2° 1.83
NGC 7000 North America Nebula 69 unknown 20:05–22:25 (good) 87.2° at 20:10 73.6° 2.33
V1057 Cyg 69 unknown 20:05–22:25 (good) 87.3° at 20:10 73.6° 1.83
M33 Triangulum Pinwheel 36 unknown 20:05–23:40 (marginal) 79.2° at 00:45 24.9° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-10-23"

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"}; an unreadable date → 400 {"error", "code": "invalid_date"}.