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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 Wednesday, 29 August 2040 · astronomical night 21:37 → 05:06 (7.48 h) · Moon 46% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:55–21:05: quality 0.1M31 21:05–21:10: quality 0.2M31 21:10–21:40: quality 0.3M31 21:40–21:50: quality 0.7M31 21:50–22:45: quality 0.8M31 22:45–00:05: quality 0.9M31 00:05–04:25: quality 0.8M31 04:25–05:10: quality 0.7M31 05:10–05:45: quality 0.4M31 05:45–06:20: quality 0.1observe M31 00:05–01:35observe M31 05:10–05:45M42M42 04:35–04:55: quality 0.3M42 04:55–05:10: quality 0.4M42 05:10–05:35: quality 0.2M42 05:35–05:45: quality 0.3M42 05:45–06:20: quality 0.1observe M42 04:45–05:10M45M45 01:00–01:05: quality 0.3M45 01:05–01:25: quality 0.4M45 01:25–01:45: quality 0.5M45 01:45–03:25: quality 0.6M45 03:25–05:10: quality 0.7M45 05:10–05:45: quality 0.3M45 05:45–06:20: quality 0.1observe M45 03:05–04:45NGC 7000NGC 7000 20:30–21:05: quality 0.1NGC 7000 21:05–21:40: quality 0.5NGC 7000 21:40–00:05: quality 1.0NGC 7000 00:05–03:00: quality 0.9NGC 7000 03:00–04:20: quality 0.8NGC 7000 04:20–05:10: quality 0.7NGC 7000 05:10–05:45: quality 0.3NGC 7000 05:45–06:20: quality 0.1observe NGC 7000 21:05–22:35V1057 CygV1057 Cyg 20:30–21:05: quality 0.1V1057 Cyg 21:05–21:40: quality 0.5V1057 Cyg 21:40–00:05: quality 1.0V1057 Cyg 00:05–03:00: quality 0.9V1057 Cyg 03:00–04:20: quality 0.8V1057 Cyg 04:20–05:10: quality 0.7V1057 Cyg 05:10–05:45: quality 0.3V1057 Cyg 05:45–06:20: quality 0.1observe V1057 Cyg 22:35–00:05M33M33 22:25–22:35: quality 0.4M33 22:35–22:45: quality 0.5M33 22:45–23:00: quality 0.6M33 23:00–23:15: quality 0.7M33 23:15–00:05: quality 0.8M33 00:05–01:05: quality 0.7M33 01:05–03:15: quality 0.8M33 03:15–05:10: quality 0.7M33 05:10–05:35: quality 0.4M33 05:35–05:45: quality 0.3M33 05:45–06:20: quality 0.1observe M33 01:35–03:05scheduleNGC 7000V1057 CygM31M33M45M3120:0022:0000:0002:0004:0006:00

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
19:55–21:05 — nothing worth pointing at — 1.17
21:05–22:35 NGC 7000 1.5 0.81
22:35–00:05 V1057 Cyg 1.5 1.0
00:05–01:35 M31 1.5 0.82
01:35–03:05 M33 1.5 0.77
03:05–04:45 M45 1.67 0.66
04:45–05:10 M42 0.42 0.36
05:10–05:45 M31 0.58 0.37
05:45–06:50 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 94 unknown 21:40–05:10 (good) 89.8° at 03:30 52.6° 2.08
M42 Great Orion Nebula 4 unknown 04:45–05:10 (marginal) 42.9° at 08:20 31.6° 0.42
M45 Seven Sisters 48 unknown 01:55–05:10 (good) 72.5° at 06:35 12.9° 1.67
NGC 7000 North America Nebula 100 unknown 21:40–05:10 (good) 87.2° at 23:45 90.5° 1.5
V1057 Cyg 100 unknown 21:40–05:10 (good) 87.3° at 23:45 90.5° 1.5
M33 Triangulum Pinwheel 85 unknown 22:55–05:10 (good) 79.2° at 04:20 42.4° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-08-29"

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"}.