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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 Saturday, 18 September 2032 · astronomical night 20:58 → 05:31 (8.56 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:05–20:30: quality 0.1M31 20:30–21:00: quality 0.2M31 21:00–03:00: quality 0.4M31 03:00–05:35: quality 0.5M31 05:35–06:10: quality 0.3M31 06:10–06:40: quality 0.1observe M31 00:10–01:45M42M42 03:20–03:30: quality 0.3M42 03:30–03:50: quality 0.4M42 03:50–04:10: quality 0.5M42 04:10–05:10: quality 0.6M42 05:10–05:35: quality 0.7M42 05:35–06:05: quality 0.3M42 06:05–06:10: quality 0.4M42 06:10–06:40: quality 0.1observe M42 04:55–06:10M45M45 23:40–23:50: quality 0.2M45 23:50–00:15: quality 0.3M45 00:15–00:45: quality 0.4M45 00:45–02:40: quality 0.5M45 02:40–04:55: quality 0.6M45 04:55–05:35: quality 0.7M45 05:35–06:00: quality 0.3M45 06:00–06:10: quality 0.4M45 06:10–06:40: quality 0.1observe M45 01:45–03:20NGC 7000NGC 7000 19:55–20:30: quality 0.1NGC 7000 20:30–21:00: quality 0.3NGC 7000 21:00–21:20: quality 0.6NGC 7000 21:20–01:55: quality 0.5NGC 7000 01:55–04:45: quality 0.4NGC 7000 04:45–05:20: quality 0.3NGC 7000 05:20–05:25: quality 0.2observe NGC 7000 21:00–22:35V1057 CygV1057 Cyg 19:55–20:30: quality 0.1V1057 Cyg 20:30–21:00: quality 0.3V1057 Cyg 21:00–21:20: quality 0.6V1057 Cyg 21:20–01:55: quality 0.5V1057 Cyg 01:55–04:45: quality 0.4V1057 Cyg 04:45–05:20: quality 0.3V1057 Cyg 05:20–05:25: quality 0.2observe V1057 Cyg 22:35–00:10M33M33 21:05–21:20: quality 0.2M33 21:20–21:55: quality 0.3M33 21:55–03:10: quality 0.4M33 03:10–05:15: quality 0.5M33 05:15–05:35: quality 0.6M33 05:35–06:10: quality 0.3M33 06:10–06:40: quality 0.1observe M33 03:20–04:55scheduleNGC 7000V1057 CygM31M45M33M4220:0022:0000:0002:0004:0006:00

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
19:20–21:00 — nothing worth pointing at — 1.67
21:00–22:35 NGC 7000 1.58 0.53
22:35–00:10 V1057 Cyg 1.58 0.48
00:10–01:45 M31 1.58 0.41
01:45–03:20 M45 1.58 0.54
03:20–04:55 M33 1.58 0.49
04:55–06:10 M42 1.25 0.51
06:10–07:10 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 55 unknown 21:00–05:35 (marginal) 89.6° at 02:10 46.4° 1.58
M42 Great Orion Nebula 25 unknown 04:20–05:35 (good) 42.9° at 07:05 94.4° 1.25
M45 Seven Sisters 57 unknown 03:35–05:35 (good) 72.6° at 05:15 69.8° 1.58
NGC 7000 North America Nebula 56 unknown 21:00–05:05 (marginal) 87.2° at 22:30 54.7° 1.58
V1057 Cyg 56 unknown 21:00–05:05 (marginal) 87.3° at 22:30 54.6° 1.58
M33 Triangulum Pinwheel 53 unknown 21:40–05:35 (marginal) 79.1° at 03:05 45.2° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2032-09-18"

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"}.