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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, 15 November 2025 · astronomical night 18:36 → 05:34 (10.97 h) · Moon 16% (waning crescent) · weather: ERA5 history

M31M31 17:35–18:05: quality 0.1M31 18:05–18:40: quality 0.5M31 18:40–20:00: quality 1.0M31 20:00–21:00: quality 0.8M31 21:00–22:00: quality 1.0M31 22:00–23:00: quality 0.9M31 23:00–00:00: quality 0.3M31 00:00–00:55: quality 0.7M31 00:55–01:00: quality 0.6M31 03:00–03:20: quality 0.4M31 03:20–03:50: quality 0.3M31 03:50–04:00: quality 0.2M31 04:00–04:05: quality 0.3observe M31 21:25–23:05M42M42 22:30–22:45: quality 0.4M42 22:45–23:00: quality 0.5M42 23:00–23:25: quality 0.2M42 23:25–00:00: quality 0.3M42 00:00–01:00: quality 0.6M42 03:00–04:00: quality 0.4M42 04:00–04:20: quality 0.7M42 04:20–05:10: quality 0.6M42 05:10–05:30: quality 0.5M42 05:30–05:35: quality 0.4M42 05:35–06:05: quality 0.2observe M42 04:25–05:35M45M45 18:55–19:05: quality 0.4M45 19:05–19:20: quality 0.5M45 19:20–19:35: quality 0.6M45 19:35–19:45: quality 0.7M45 19:45–20:00: quality 0.8M45 20:00–20:30: quality 0.6M45 20:30–21:00: quality 0.7M45 21:00–21:50: quality 0.9M45 21:50–22:00: quality 1.0M45 22:00–23:00: quality 0.9M45 23:00–00:00: quality 0.3M45 00:00–01:00: quality 0.7M45 03:00–03:55: quality 0.5M45 03:55–04:00: quality 0.4M45 04:00–04:50: quality 0.7M45 04:50–05:20: quality 0.6M45 05:20–05:35: quality 0.5M45 05:35–06:05: quality 0.2observe M45 00:45–01:00observe M45 03:00–04:25NGC 7000NGC 7000 17:35–18:05: quality 0.2NGC 7000 18:05–18:40: quality 0.5NGC 7000 18:40–20:00: quality 1.0NGC 7000 20:00–20:45: quality 0.8NGC 7000 20:45–21:00: quality 0.7NGC 7000 21:00–21:10: quality 1.0NGC 7000 21:10–22:00: quality 0.9NGC 7000 22:00–23:00: quality 0.8NGC 7000 23:00–23:40: quality 0.3NGC 7000 23:40–00:00: quality 0.2NGC 7000 00:00–00:15: quality 0.4NGC 7000 00:15–00:35: quality 0.3observe NGC 7000 18:05–19:45V1057 CygV1057 Cyg 17:35–18:05: quality 0.2V1057 Cyg 18:05–18:40: quality 0.5V1057 Cyg 18:40–20:00: quality 1.0V1057 Cyg 20:00–20:45: quality 0.8V1057 Cyg 20:45–21:00: quality 0.7V1057 Cyg 21:00–21:10: quality 1.0V1057 Cyg 21:10–22:00: quality 0.9V1057 Cyg 22:00–23:00: quality 0.8V1057 Cyg 23:00–23:40: quality 0.3V1057 Cyg 23:40–00:00: quality 0.2V1057 Cyg 00:00–00:15: quality 0.4V1057 Cyg 00:15–00:35: quality 0.3observe V1057 Cyg 19:45–21:25M33M33 17:35–18:05: quality 0.1M33 18:05–18:40: quality 0.4M33 18:40–19:55: quality 0.9M33 19:55–20:00: quality 1.0M33 20:00–21:00: quality 0.8M33 21:00–22:00: quality 1.0M33 22:00–23:00: quality 0.9M33 23:00–00:00: quality 0.3M33 00:00–01:00: quality 0.7M33 03:00–03:35: quality 0.4M33 03:35–04:00: quality 0.3M33 04:00–04:10: quality 0.4M33 04:10–04:15: quality 0.3observe M33 23:05–00:45scheduleNGC 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
17:00–18:05 — nothing worth pointing at — 1.08
18:05–19:45 NGC 7000 1.67 0.81
19:45–21:25 V1057 Cyg 1.67 0.84
21:25–23:05 M31 1.67 0.93
23:05–00:45 M33 1.67 0.5
00:45–01:00 M45 0.25 0.69
01:00–03:00 — nothing worth pointing at — 2.0
03:00–04:25 M45 1.42 0.53
04:25–05:35 M42 1.17 0.57
05:35–07:15 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 63 18:40–23:00 (good) 89.7° at 21:25 142.5° 1.67
M42 Great Orion Nebula 89 39 04:00–05:00 (good) 42.9° at 02:15 100.7° 1.17
M45 Seven Sisters 100 59 19:25–23:00 (good) 72.5° at 00:30 126.5° 1.67
NGC 7000 North America Nebula 100 84 18:40–23:00 (good) 87.3° at 17:40 120.3° 1.67
V1057 Cyg 100 84 18:40–23:00 (good) 87.3° at 17:40 120.4° 1.67
M33 Triangulum Pinwheel 100 62 18:40–23:00 (good) 79.1° at 22:15 148.2° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2025-11-15"

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"}.