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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, 24 December 2036 · astronomical night 18:35 → 06:06 (11.5 h) · Moon 42% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:40: quality 0.4M31 18:40–23:25: quality 0.8M31 23:25–23:40: quality 0.9M31 23:40–00:35: quality 0.8M31 00:35–00:50: quality 0.7M31 00:50–01:10: quality 0.6M31 01:10–01:25: quality 0.5M31 01:25–01:35: quality 0.4observe M31 00:25–01:25M42M42 19:55–20:15: quality 0.4M42 20:15–20:30: quality 0.5M42 20:30–20:50: quality 0.6M42 20:50–21:45: quality 0.7M42 21:45–23:25: quality 0.8M42 23:25–01:25: quality 0.9M42 01:25–02:35: quality 0.8M42 02:35–02:55: quality 0.7M42 02:55–03:10: quality 0.6M42 03:10–03:25: quality 0.5M42 03:25–03:30: quality 0.4observe M42 01:25–03:30M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.4M45 18:40–18:50: quality 0.7M45 18:50–21:25: quality 0.8M45 21:25–23:25: quality 0.9M45 23:25–00:35: quality 1.0M45 00:35–02:00: quality 0.9M45 02:00–02:45: quality 0.8M45 02:45–03:00: quality 0.7M45 03:00–03:10: quality 0.6M45 03:10–03:25: quality 0.5M45 03:25–03:30: quality 0.4observe M45 21:15–22:50NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–18:55: quality 0.8NGC 7000 18:55–20:55: quality 0.7NGC 7000 20:55–21:15: quality 0.6NGC 7000 21:15–21:40: quality 0.5NGC 7000 21:40–22:00: quality 0.4observe NGC 7000 19:40–21:15V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–18:55: quality 0.8V1057 Cyg 18:55–20:55: quality 0.7V1057 Cyg 20:55–21:15: quality 0.6V1057 Cyg 21:15–21:40: quality 0.5V1057 Cyg 21:40–22:00: quality 0.4observe V1057 Cyg 18:05–19:40M33M33 17:30–18:05: quality 0.1M33 18:05–18:40: quality 0.4M33 18:40–23:25: quality 0.8M33 23:25–00:05: quality 0.9M33 00:05–00:55: quality 0.8M33 00:55–01:05: quality 0.7M33 01:05–01:20: quality 0.6M33 01:20–01:35: quality 0.5M33 01:35–01:45: quality 0.4observe M33 22:50–00:25scheduleV1057 CygNGC 7000M45M33M31M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–19:40 V1057 Cyg 1.58 0.61
19:40–21:15 NGC 7000 1.58 0.67
21:15–22:50 M45 1.58 0.86
22:50–00:25 M33 1.58 0.83
00:25–01:25 M31 1.0 0.63
01:25–03:30 M42 2.08 0.72
03:30–07:50 — nothing worth pointing at — 4.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 87 unknown 18:40–01:00 (good) 89.7° at 18:50 49.0° 1.0
M42 Great Orion Nebula 89 unknown 20:40–03:00 (good) 42.9° at 23:40 87.4° 2.08
M45 Seven Sisters 100 unknown 18:40–03:05 (good) 72.5° at 21:55 66.3° 1.58
NGC 7000 North America Nebula 47 unknown 18:40–21:05 (good) 87.2° at 15:05 62.3° 1.58
V1057 Cyg 47 unknown 18:40–21:05 (good) 87.3° at 15:05 62.3° 1.58
M33 Triangulum Pinwheel 90 unknown 18:40–01:15 (good) 79.2° at 19:40 45.0° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2036-12-24"

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"}.