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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 Thursday, 04 September 2036 · astronomical night 21:25 → 05:14 (7.81 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:50–20:55: quality 0.1M31 20:55–21:30: quality 0.2M31 21:30–01:25: quality 0.5M31 01:25–04:55: quality 0.6M31 04:55–05:15: quality 0.7M31 05:15–05:50: quality 0.3M31 05:50–06:25: quality 0.1observe M31 23:55–01:25M42M42 04:15–04:35: quality 0.4M42 04:35–04:55: quality 0.5M42 04:55–05:10: quality 0.6M42 05:10–05:15: quality 0.7M42 05:15–05:35: quality 0.3M42 05:35–05:50: quality 0.4M42 05:50–06:25: quality 0.1observe M42 04:25–05:50M45M45 00:35–00:50: quality 0.3M45 00:50–01:10: quality 0.4M45 01:10–01:30: quality 0.5M45 01:30–03:05: quality 0.6M45 03:05–04:40: quality 0.7M45 04:40–05:15: quality 0.8M45 05:15–05:50: quality 0.4M45 05:50–06:15: quality 0.1M45 06:15–06:25: quality 0.2observe M45 02:55–04:25NGC 7000NGC 7000 20:20–20:55: quality 0.1NGC 7000 20:55–21:30: quality 0.3NGC 7000 21:30–23:20: quality 0.6NGC 7000 23:20–05:15: quality 0.5NGC 7000 05:15–05:50: quality 0.2NGC 7000 05:50–06:05: quality 0.1NGC 7000 06:15–06:20: quality 0.1observe NGC 7000 20:55–22:25V1057 CygV1057 Cyg 20:20–20:55: quality 0.1V1057 Cyg 20:55–21:30: quality 0.3V1057 Cyg 21:30–23:15: quality 0.6V1057 Cyg 23:15–05:15: quality 0.5V1057 Cyg 05:15–05:50: quality 0.2V1057 Cyg 05:50–06:05: quality 0.1V1057 Cyg 06:15–06:20: quality 0.1observe V1057 Cyg 22:25–23:55M33M33 22:00–22:05: quality 0.2M33 22:05–22:30: quality 0.3M33 22:30–22:55: quality 0.4M33 22:55–01:35: quality 0.5M33 01:35–04:50: quality 0.6M33 04:50–05:15: quality 0.7M33 05:15–05:50: quality 0.3M33 05:50–06:15: quality 0.1M33 06:15–06:20: quality 0.2M33 06:20–06:25: quality 0.1observe M33 01:25–02:55scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
19:45–20:55 — nothing worth pointing at — 1.17
20:55–22:25 NGC 7000 1.5 0.48
22:25–23:55 V1057 Cyg 1.5 0.55
23:55–01:25 M31 1.5 0.54
01:25–02:55 M33 1.5 0.56
02:55–04:25 M45 1.5 0.69
04:25–05:50 M42 1.42 0.46
05:50–06:55 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 66 unknown 03:40–05:15 (good) 89.6° at 03:05 61.7° 1.5
M42 Great Orion Nebula 13 unknown 05:00–05:15 (good) 42.9° at 08:00 106.2° 1.42
M45 Seven Sisters 61 unknown 02:20–05:15 (good) 72.5° at 06:10 86.3° 1.5
NGC 7000 North America Nebula 61 unknown 21:30–21:40 (good) 87.2° at 23:25 59.2° 1.5
V1057 Cyg 61 unknown 21:30–21:40 (good) 87.3° at 23:25 59.1° 1.5
M33 Triangulum Pinwheel 67 unknown 03:35–05:15 (good) 79.1° at 04:00 62.1° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2036-09-04"

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"}.