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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, 22 November 2031 · astronomical night 18:33 → 05:41 (11.14 h) · Moon 64% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:35: quality 0.3M31 18:35–21:25: quality 0.6M31 21:25–01:20: quality 0.7M31 01:20–01:50: quality 0.9M31 01:50–02:45: quality 0.8M31 02:45–03:00: quality 0.7M31 03:00–03:15: quality 0.6M31 03:15–03:35: quality 0.5M31 03:35–03:40: quality 0.4observe M31 02:05–03:30M42M42 22:05–22:10: quality 0.3M42 22:10–22:25: quality 0.4M42 22:25–22:45: quality 0.5M42 22:45–23:05: quality 0.6M42 23:05–00:20: quality 0.7M42 00:20–01:20: quality 0.8M42 01:20–03:35: quality 0.9M42 03:35–04:45: quality 0.8M42 04:45–05:00: quality 0.7M42 05:00–05:20: quality 0.6M42 05:20–05:35: quality 0.5M42 05:35–05:40: quality 0.4observe M42 03:30–05:40M45M45 18:30–18:35: quality 0.2M45 18:35–18:40: quality 0.3M45 18:40–19:00: quality 0.4M45 19:00–19:20: quality 0.5M45 19:20–20:35: quality 0.6M45 20:35–22:05: quality 0.7M45 22:05–01:20: quality 0.8M45 01:20–02:45: quality 1.0M45 02:45–04:05: quality 0.9M45 04:05–04:55: quality 0.8M45 04:55–05:05: quality 0.7M45 05:05–05:20: quality 0.6M45 05:20–05:35: quality 0.5M45 05:35–05:40: quality 0.4observe M45 22:05–00:05NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.3NGC 7000 18:35–18:40: quality 0.7NGC 7000 18:40–19:55: quality 0.6NGC 7000 19:55–20:05: quality 0.7NGC 7000 20:05–23:05: quality 0.6NGC 7000 23:05–23:35: quality 0.5NGC 7000 23:35–00:00: quality 0.4NGC 7000 00:00–00:10: quality 0.3observe NGC 7000 18:05–20:05V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:35: quality 0.3V1057 Cyg 18:35–19:55: quality 0.6V1057 Cyg 19:55–20:05: quality 0.7V1057 Cyg 20:05–23:05: quality 0.6V1057 Cyg 23:05–23:30: quality 0.5V1057 Cyg 23:30–00:00: quality 0.4V1057 Cyg 00:00–00:10: quality 0.3observe V1057 Cyg 20:05–22:05M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.3M33 18:35–21:30: quality 0.6M33 21:30–01:20: quality 0.7M33 01:20–02:15: quality 0.9M33 02:15–03:00: quality 0.8M33 03:00–03:15: quality 0.7M33 03:15–03:30: quality 0.6M33 03:30–03:45: quality 0.5M33 03:45–03:50: quality 0.4observe M33 00:05–02:05scheduleNGC 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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–20:05 NGC 7000 2.0 0.57
20:05–22:05 V1057 Cyg 2.0 0.62
22:05–00:05 M45 2.0 0.78
00:05–02:05 M33 2.0 0.79
02:05–03:30 M31 1.42 0.7
03:30–05:40 M42 2.17 0.72
05:40–07:20 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 88 unknown 18:35–03:10 (good) 89.7° at 21:00 47.4° 1.42
M42 Great Orion Nebula 89 unknown 22:55–05:10 (good) 42.9° at 01:50 97.2° 2.17
M45 Seven Sisters 100 unknown 19:45–05:15 (good) 72.5° at 00:05 72.2° 2.0
NGC 7000 North America Nebula 57 unknown 18:35–21:40 (good) 87.2° at 17:15 53.2° 2.0
V1057 Cyg 56 unknown 18:35–21:40 (good) 87.3° at 17:15 53.1° 2.0
M33 Triangulum Pinwheel 91 unknown 19:00–03:25 (good) 79.1° at 21:50 47.1° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-11-22"

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"}.