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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, 25 November 2027 · astronomical night 18:32 → 05:44 (11.21 h) · Moon 6% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.5M31 18:35–00:15: quality 1.0M31 00:15–01:40: quality 0.9M31 01:40–02:30: quality 0.8M31 02:30–02:50: quality 0.7M31 02:50–03:05: quality 0.6M31 03:05–03:20: quality 0.5M31 03:20–03:30: quality 0.4observe M31 22:00–00:00M42M42 21:55–22:00: quality 0.4M42 22:00–22:15: quality 0.5M42 22:15–22:35: quality 0.6M42 22:35–22:50: quality 0.7M42 22:50–00:00: quality 0.8M42 00:00–03:25: quality 0.9M42 03:25–04:35: quality 0.8M42 04:35–04:50: quality 0.7M42 04:50–05:05: quality 0.6M42 05:05–05:20: quality 0.5M42 05:20–05:30: quality 0.4observe M42 04:00–05:30M45M45 18:15–18:30: quality 0.2M45 18:30–18:35: quality 0.3M45 18:35–18:40: quality 0.5M45 18:40–18:50: quality 0.6M45 18:50–19:05: quality 0.7M45 19:05–19:50: quality 0.8M45 19:50–21:15: quality 0.9M45 21:15–02:35: quality 1.0M45 02:35–03:55: quality 0.9M45 03:55–04:40: quality 0.8M45 04:40–04:55: quality 0.7M45 04:55–05:10: quality 0.6M45 05:10–05:20: quality 0.5M45 05:20–05:30: quality 0.4observe M45 02:00–04:00NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–20:35: quality 1.0NGC 7000 20:35–22:05: quality 0.9NGC 7000 22:05–23:00: quality 0.8NGC 7000 23:00–23:15: quality 0.7NGC 7000 23:15–23:30: quality 0.6NGC 7000 23:30–23:50: quality 0.5NGC 7000 23:50–00:00: quality 0.4observe NGC 7000 18:00–20:00V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–20:35: quality 1.0V1057 Cyg 20:35–22:05: quality 0.9V1057 Cyg 22:05–23:00: quality 0.8V1057 Cyg 23:00–23:15: quality 0.7V1057 Cyg 23:15–23:30: quality 0.6V1057 Cyg 23:30–23:50: quality 0.5V1057 Cyg 23:50–00:00: quality 0.4observe V1057 Cyg 20:00–22:00M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–18:40: quality 0.9M33 18:40–00:40: quality 1.0M33 00:40–02:00: quality 0.9M33 02:00–02:50: quality 0.8M33 02:50–03:05: quality 0.7M33 03:05–03:20: quality 0.6M33 03:20–03:30: quality 0.5M33 03:30–03:40: quality 0.4observe M33 00:00–02:00scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–20:00 NGC 7000 2.0 0.85
20:00–22:00 V1057 Cyg 2.0 0.92
22:00–00:00 M31 2.0 1.0
00:00–02:00 M33 2.0 0.93
02:00–04:00 M45 2.0 0.92
04:00–05:30 M42 1.5 0.66
05:30–07:25 — nothing worth pointing at — 1.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–02:55 (good) 89.5° at 20:45 150.7° 2.0
M42 Great Orion Nebula 89 unknown 22:25–05:00 (good) 42.9° at 01:40 123.8° 1.5
M45 Seven Sisters 100 unknown 18:45–05:00 (good) 72.5° at 23:50 156.5° 2.0
NGC 7000 North America Nebula 100 unknown 18:35–23:25 (good) 87.2° at 17:05 111.6° 2.0
V1057 Cyg 100 unknown 18:35–23:25 (good) 87.3° at 17:05 111.6° 2.0
M33 Triangulum Pinwheel 100 unknown 18:35–03:10 (good) 79.1° at 21:40 165.4° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-25"

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"}.