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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 Saturday, 23 November 2047 · astronomical night 18:32 → 05:42 (11.17 h) · Moon 46% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:00: quality 0.1M31 18:00–18:35: quality 0.4M31 18:35–22:20: quality 0.8M31 22:20–23:20: quality 0.9M31 23:20–00:20: quality 1.0M31 00:20–01:50: quality 0.9M31 01:50–02:40: quality 0.8M31 02:40–02:55: quality 0.7M31 02:55–03:15: quality 0.6M31 03:15–03:30: quality 0.5M31 03:30–03:40: quality 0.4observe M31 02:00–03:30M42M42 22:00–22:15: quality 0.4M42 22:15–22:30: quality 0.5M42 22:30–22:45: quality 0.6M42 22:45–23:05: quality 0.7M42 23:05–00:10: quality 0.8M42 00:10–03:30: quality 0.9M42 03:30–04:40: quality 0.8M42 04:40–05:00: quality 0.7M42 05:00–05:15: quality 0.6M42 05:15–05:30: quality 0.5M42 05:30–05:35: quality 0.4observe M42 03:30–05:35M45M45 18:25–18:35: quality 0.2M45 18:35–18:40: quality 0.4M45 18:40–18:55: quality 0.5M45 18:55–19:10: quality 0.6M45 19:10–20:00: quality 0.7M45 20:00–21:20: quality 0.8M45 21:20–23:20: quality 0.9M45 23:20–02:40: quality 1.0M45 02:40–04:05: quality 0.9M45 04:05–04:50: quality 0.8M45 04:50–05:05: quality 0.7M45 05:05–05:15: quality 0.6M45 05:15–05:30: quality 0.5M45 05:30–05:40: quality 0.4observe M45 22:00–00:00observe M45 05:35–05:40NGC 7000NGC 7000 17:30–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–20:55: quality 0.8NGC 7000 20:55–23:05: quality 0.7NGC 7000 23:05–23:20: quality 0.6NGC 7000 23:20–23:25: quality 0.7NGC 7000 23:25–23:40: quality 0.6NGC 7000 23:40–00:00: quality 0.5NGC 7000 00:00–00:05: quality 0.4observe NGC 7000 18:00–20:00V1057 CygV1057 Cyg 17:30–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–20:55: quality 0.8V1057 Cyg 20:55–23:05: quality 0.7V1057 Cyg 23:05–23:20: quality 0.6V1057 Cyg 23:20–23:25: quality 0.7V1057 Cyg 23:25–23:40: quality 0.6V1057 Cyg 23:40–00:00: quality 0.5V1057 Cyg 00:00–00:05: quality 0.4observe V1057 Cyg 20:00–22:00M33M33 17:30–18:00: quality 0.1M33 18:00–18:35: quality 0.4M33 18:35–22:05: quality 0.8M33 22:05–23:20: quality 0.9M33 23:20–00:50: quality 1.0M33 00:50–02:10: quality 0.9M33 02:10–03:00: quality 0.8M33 03:00–03:10: quality 0.7M33 03:10–03:25: quality 0.6M33 03:25–03:40: quality 0.5M33 03:40–03:50: quality 0.4observe M33 00:00–02:00scheduleNGC 7000V1057 CygM45M33M31M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:00 — nothing worth pointing at — 1.08
18:00–20:00 NGC 7000 2.0 0.66
20:00–22:00 V1057 Cyg 2.0 0.75
22:00–00:00 M45 2.0 0.94
00:00–02:00 M33 2.0 0.94
02:00–03:30 M31 1.5 0.69
03:30–05:35 M42 2.08 0.72
05:35–05:40 M45 0.08 0.4
05:40–07:25 — nothing worth pointing at — 1.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–03:05 (good) 89.8° at 20:55 64.2° 1.5
M42 Great Orion Nebula 89 unknown 22:40–05:05 (good) 42.9° at 01:45 115.2° 2.08
M45 Seven Sisters 100 unknown 19:05–05:10 (good) 72.6° at 00:00 93.1° 2.08
NGC 7000 North America Nebula 79 unknown 18:35–23:15 (good) 87.2° at 17:10 54.6° 2.0
V1057 Cyg 79 unknown 18:35–23:15 (good) 87.2° at 17:10 54.5° 2.0
M33 Triangulum Pinwheel 100 unknown 18:35–03:20 (good) 79.2° at 21:45 66.9° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2047-11-23"

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"}.