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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, 06 November 2031 · astronomical night 18:44 → 05:25 (10.67 h) · Moon 54% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:45: quality 0.5M31 18:45–23:20: quality 1.0M31 23:20–01:30: quality 0.9M31 01:30–02:50: quality 0.8M31 02:50–03:50: quality 0.7M31 03:50–04:05: quality 0.6M31 04:05–04:25: quality 0.5M31 04:25–04:45: quality 0.4observe M31 22:15–00:15M42M42 23:10–23:15: quality 0.4M42 23:15–23:20: quality 0.5M42 23:20–23:30: quality 0.4M42 23:30–23:55: quality 0.5M42 23:55–01:10: quality 0.6M42 01:10–01:50: quality 0.7M42 01:50–05:25: quality 0.6M42 05:25–05:30: quality 0.5M42 05:30–05:50: quality 0.3M42 05:50–06:00: quality 0.2M42 06:00–06:30: quality 0.1observe M42 04:15–05:30M45M45 19:30–19:40: quality 0.4M45 19:40–19:55: quality 0.5M45 19:55–20:05: quality 0.6M45 20:05–20:20: quality 0.7M45 20:20–21:05: quality 0.8M45 21:05–22:30: quality 0.9M45 22:30–23:20: quality 1.0M45 23:20–23:55: quality 0.9M45 23:55–03:30: quality 0.8M45 03:30–05:00: quality 0.7M45 05:00–05:30: quality 0.6M45 05:30–06:00: quality 0.3M45 06:00–06:35: quality 0.1observe M45 02:15–04:15observe M45 05:30–05:45NGC 7000NGC 7000 17:40–18:15: quality 0.2NGC 7000 18:15–18:45: quality 0.5NGC 7000 18:45–21:50: quality 1.0NGC 7000 21:50–23:20: quality 0.9NGC 7000 23:20–00:05: quality 0.8NGC 7000 00:05–00:25: quality 0.7NGC 7000 00:25–00:40: quality 0.6NGC 7000 00:40–01:00: quality 0.5NGC 7000 01:00–01:15: quality 0.4observe NGC 7000 18:15–20:15V1057 CygV1057 Cyg 17:40–18:15: quality 0.2V1057 Cyg 18:15–18:45: quality 0.5V1057 Cyg 18:45–21:50: quality 1.0V1057 Cyg 21:50–23:20: quality 0.9V1057 Cyg 23:20–00:05: quality 0.8V1057 Cyg 00:05–00:25: quality 0.7V1057 Cyg 00:25–00:40: quality 0.6V1057 Cyg 00:40–01:00: quality 0.5V1057 Cyg 01:00–01:15: quality 0.4observe V1057 Cyg 20:15–22:15M33M33 17:40–18:15: quality 0.1M33 18:15–18:45: quality 0.4M33 18:45–19:55: quality 0.9M33 19:55–23:20: quality 1.0M33 23:20–01:45: quality 0.9M33 01:45–03:00: quality 0.8M33 03:00–04:05: quality 0.7M33 04:05–04:20: quality 0.6M33 04:20–04:35: quality 0.5M33 04:35–04:50: quality 0.4M33 04:50–04:55: quality 0.3observe M33 00:15–02:15scheduleNGC 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
17:10–18:15 — nothing worth pointing at — 1.08
18:15–20:15 NGC 7000 2.0 0.88
20:15–22:15 V1057 Cyg 2.0 0.98
22:15–00:15 M31 2.0 0.96
00:15–02:15 M33 2.0 0.87
02:15–04:15 M45 2.0 0.76
04:15–05:30 M42 1.25 0.57
05:30–05:45 M45 0.25 0.3
05:45–07:00 — nothing worth pointing at — 1.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:45–03:55 (good) 89.5° at 22:00 103.2° 2.0
M42 Great Orion Nebula 65 unknown 00:05–04:10 (good) 42.9° at 02:55 50.4° 1.25
M45 Seven Sisters 100 unknown 20:00–05:30 (good) 72.5° at 01:05 71.0° 2.25
NGC 7000 North America Nebula 100 unknown 18:45–00:35 (good) 87.2° at 18:20 122.9° 2.0
V1057 Cyg 100 unknown 18:45–00:35 (good) 87.3° at 18:20 123.0° 2.0
M33 Triangulum Pinwheel 100 unknown 18:45–04:10 (good) 79.1° at 22:55 98.3° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-11-06"

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"}.