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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, 28 August 2037 · astronomical night 21:40 → 05:04 (7.41 h) · Moon 91% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:00–21:05: quality 0.1M31 21:05–21:15: quality 0.2M31 21:15–21:40: quality 0.3M31 21:40–21:45: quality 0.2M31 21:45–02:15: quality 0.5M31 02:15–05:05: quality 0.4M31 05:05–05:45: quality 0.2M31 05:45–06:20: quality 0.1observe M31 23:45–01:05M42M42 04:40–04:45: quality 0.2M42 04:45–05:05: quality 0.3M42 05:05–05:45: quality 0.2M42 05:45–06:20: quality 0.1observe M42 04:55–05:05M45M45 01:05–01:15: quality 0.2M45 01:15–01:45: quality 0.3M45 01:45–03:50: quality 0.4M45 03:50–05:05: quality 0.5M45 05:05–05:20: quality 0.2M45 05:20–05:45: quality 0.3M45 05:45–06:20: quality 0.1observe M45 02:25–04:55NGC 7000NGC 7000 20:30–21:05: quality 0.1NGC 7000 21:05–21:40: quality 0.5NGC 7000 21:40–21:45: quality 0.4NGC 7000 21:45–21:50: quality 0.8NGC 7000 21:50–00:05: quality 0.7NGC 7000 00:05–03:20: quality 0.6NGC 7000 03:20–05:05: quality 0.5NGC 7000 05:05–05:45: quality 0.2NGC 7000 05:45–06:20: quality 0.1observe NGC 7000 21:05–22:25V1057 CygV1057 Cyg 20:30–21:05: quality 0.1V1057 Cyg 21:05–21:40: quality 0.5V1057 Cyg 21:40–21:45: quality 0.4V1057 Cyg 21:45–21:50: quality 0.8V1057 Cyg 21:50–00:05: quality 0.7V1057 Cyg 00:05–03:20: quality 0.6V1057 Cyg 03:20–05:05: quality 0.5V1057 Cyg 05:05–05:45: quality 0.2V1057 Cyg 05:45–06:20: quality 0.1observe V1057 Cyg 22:25–23:45M33M33 22:30–22:35: quality 0.2M33 22:35–23:05: quality 0.3M33 23:05–05:05: quality 0.4M33 05:05–05:45: quality 0.2M33 05:45–06:20: quality 0.1observe M33 01:05–02:25scheduleNGC 7000V1057 CygM31M33M4522:0000:0002:0004:0006:00

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
20:00–21:05 — nothing worth pointing at — 1.08
21:05–22:25 NGC 7000 1.33 0.61
22:25–23:45 V1057 Cyg 1.33 0.69
23:45–01:05 M31 1.33 0.5
01:05–02:25 M33 1.33 0.41
02:25–04:55 M45 2.5 0.45
04:55–05:05 M42 0.17 0.32
05:05–06:45 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 50 unknown 21:45–05:05 (marginal) 89.8° at 03:35 41.8° 1.33
M42 Great Orion Nebula 3 unknown 04:55–05:05 (marginal) 42.9° at 08:25 72.6° 0.17
M45 Seven Sisters 23 unknown 01:30–05:05 (marginal) 72.5° at 06:40 50.4° 2.5
NGC 7000 North America Nebula 75 unknown 21:45–01:40 (good) 87.2° at 23:50 67.1° 1.33
V1057 Cyg 75 unknown 21:45–01:40 (good) 87.3° at 23:50 67.1° 1.33
M33 Triangulum Pinwheel 29 unknown 22:50–05:05 (marginal) 79.2° at 04:25 33.3° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-08-28"

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"}.