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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 November 2027 · astronomical night 18:46 → 05:22 (10.6 h) · Moon 37% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:45–18:15: quality 0.1M31 18:15–18:50: quality 0.4M31 18:50–21:50: quality 0.9M31 21:50–01:35: quality 1.0M31 01:35–03:00: quality 0.9M31 03:00–03:55: quality 0.8M31 03:55–04:10: quality 0.7M31 04:10–04:25: quality 0.6M31 04:25–04:45: quality 0.5M31 04:45–04:50: quality 0.4observe M31 20:15–22:15M42M42 23:15–23:25: quality 0.4M42 23:25–23:40: quality 0.5M42 23:40–23:55: quality 0.6M42 23:55–00:10: quality 0.7M42 00:10–01:20: quality 0.8M42 01:20–04:45: quality 0.9M42 04:45–05:25: quality 0.8M42 05:25–06:00: quality 0.4M42 06:00–06:30: quality 0.1observe M42 04:15–06:00M45M45 19:40–19:50: quality 0.4M45 19:50–20:05: quality 0.5M45 20:05–20:20: quality 0.6M45 20:20–20:30: quality 0.7M45 20:30–21:35: quality 0.8M45 21:35–22:35: quality 0.9M45 22:35–03:55: quality 1.0M45 03:55–05:15: quality 0.9M45 05:15–05:25: quality 0.8M45 05:25–06:00: quality 0.4M45 06:00–06:30: quality 0.1observe M45 02:15–04:15NGC 7000NGC 7000 17:45–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.4NGC 7000 18:50–21:50: quality 0.9NGC 7000 21:50–21:55: quality 1.0NGC 7000 21:55–23:25: quality 0.9NGC 7000 23:25–00:20: quality 0.8NGC 7000 00:20–00:40: quality 0.7NGC 7000 00:40–00:55: quality 0.6NGC 7000 00:55–01:10: quality 0.5NGC 7000 01:10–01:20: quality 0.4observe NGC 7000 18:15–20:15V1057 CygV1057 Cyg 17:45–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.4V1057 Cyg 18:50–21:50: quality 0.9V1057 Cyg 21:50–21:55: quality 1.0V1057 Cyg 21:55–23:25: quality 0.9V1057 Cyg 23:25–00:20: quality 0.8V1057 Cyg 00:20–00:35: quality 0.7V1057 Cyg 00:35–00:55: quality 0.6V1057 Cyg 00:55–01:10: quality 0.5V1057 Cyg 01:10–01:20: quality 0.4observe V1057 Cyg 22:15–00:15M33M33 17:45–18:15: quality 0.1M33 18:15–18:50: quality 0.4M33 18:50–19:40: quality 0.8M33 19:40–21:50: quality 0.9M33 21:50–02:05: quality 1.0M33 02:05–03:25: quality 0.9M33 03:25–04:10: quality 0.8M33 04:10–04:25: quality 0.7M33 04:25–04:40: quality 0.6M33 04:40–04:55: quality 0.5M33 04:55–05:00: quality 0.4observe M33 00:15–02:15scheduleNGC 7000M31V1057 CygM33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:10–18:15 — nothing worth pointing at — 1.08
18:15–20:15 NGC 7000 2.0 0.74
20:15–22:15 M31 2.0 0.94
22:15–00:15 V1057 Cyg 2.0 0.86
00:15–02:15 M33 2.0 0.99
02:15–04:15 M45 2.0 0.98
04:15–06:00 M42 1.75 0.7
06:00–07:00 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:50–04:20 (good) 89.7° at 22:10 91.2° 2.0
M42 Great Orion Nebula 89 unknown 23:45–05:25 (good) 42.9° at 03:00 136.1° 1.75
M45 Seven Sisters 100 unknown 20:10–05:25 (good) 72.5° at 01:15 122.8° 2.0
NGC 7000 North America Nebula 95 unknown 18:50–00:45 (good) 87.2° at 18:25 67.4° 2.0
V1057 Cyg 95 unknown 18:50–00:45 (good) 87.3° at 18:25 67.3° 2.0
M33 Triangulum Pinwheel 100 unknown 18:50–04:35 (good) 79.1° at 23:00 96.2° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-04"

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"}.