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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 Sunday, 27 August 2034 · astronomical night 21:42 → 05:02 (7.33 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:10–21:45: quality 0.2M31 21:45–21:50: quality 0.4M31 21:50–22:50: quality 0.5M31 22:50–01:00: quality 0.6M31 01:00–04:35: quality 0.7M31 04:35–05:05: quality 0.8M31 05:05–05:10: quality 0.4M31 05:10–05:40: quality 0.5M31 05:40–06:15: quality 0.2observe M31 23:05–00:25M42M42 04:45–05:00: quality 0.4M42 05:00–05:05: quality 0.5M42 05:05–05:10: quality 0.2M42 05:10–05:35: quality 0.3M42 05:35–05:40: quality 0.4M42 05:40–06:15: quality 0.1observe M42 04:50–05:05observe M42 05:35–05:40M45M45 01:10–01:15: quality 0.3M45 01:15–01:30: quality 0.4M45 01:30–01:45: quality 0.5M45 01:45–02:05: quality 0.6M45 02:05–03:15: quality 0.7M45 03:15–04:35: quality 0.8M45 04:35–05:05: quality 0.9M45 05:05–05:10: quality 0.4M45 05:10–05:40: quality 0.5M45 05:40–06:15: quality 0.2observe M45 03:00–04:20observe M45 05:05–05:35NGC 7000NGC 7000 20:35–21:10: quality 0.1NGC 7000 21:10–21:45: quality 0.3NGC 7000 21:45–05:05: quality 0.6NGC 7000 05:05–05:10: quality 0.3NGC 7000 05:10–05:40: quality 0.4NGC 7000 05:40–06:15: quality 0.1observe NGC 7000 21:45–23:05V1057 CygV1057 Cyg 20:35–21:10: quality 0.1V1057 Cyg 21:10–21:45: quality 0.3V1057 Cyg 21:45–05:05: quality 0.6V1057 Cyg 05:05–05:10: quality 0.3V1057 Cyg 05:10–05:40: quality 0.4V1057 Cyg 05:40–06:15: quality 0.1observe V1057 Cyg 01:45–03:00observe V1057 Cyg 04:20–04:50M33M33 22:35–22:55: quality 0.3M33 22:55–23:15: quality 0.4M33 23:15–23:50: quality 0.5M33 23:50–01:35: quality 0.6M33 01:35–04:05: quality 0.7M33 04:05–05:05: quality 0.8M33 05:05–05:10: quality 0.4M33 05:10–05:40: quality 0.5M33 05:40–06:15: quality 0.2observe M33 00:25–01:45scheduleNGC 7000M31M33V1057 CygM4522:0000:0002:0004:0006:00

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
20:00–21:45 — nothing worth pointing at — 1.75
21:45–23:05 NGC 7000 1.33 0.57
23:05–00:25 M31 1.33 0.59
00:25–01:45 M33 1.33 0.62
01:45–03:00 V1057 Cyg 1.25 0.59
03:00–04:20 M45 1.33 0.78
04:20–04:50 V1057 Cyg 0.5 0.6
04:50–05:05 M42 0.25 0.43
05:05–05:35 M45 0.5 0.49
05:35–05:40 M42 0.08 0.36
05:40–06:45 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 77 unknown 00:00–05:05 (good) 89.8° at 03:40 75.9° 1.33
M42 Great Orion Nebula 5 unknown 04:45–05:05 (marginal) 42.9° at 08:30 126.8° 0.33
M45 Seven Sisters 69 unknown 01:55–05:05 (good) 72.5° at 06:45 107.0° 1.83
NGC 7000 North America Nebula 60 unknown 02:40–03:20 (good) 87.2° at 23:55 58.0° 1.33
V1057 Cyg 60 unknown 02:40–03:20 (good) 87.3° at 23:55 58.0° 1.75
M33 Triangulum Pinwheel 78 unknown 00:45–05:05 (good) 79.1° at 04:30 80.2° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-08-27"

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"}.