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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 Wednesday, 17 November 2027 · astronomical night 18:35 → 05:36 (11.01 h) · Moon 83% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:40: quality 0.5M31 18:40–20:00: quality 1.0M31 20:00–21:50: quality 0.8M31 21:50–00:30: quality 0.7M31 00:30–02:05: quality 0.6M31 02:05–03:10: quality 0.5M31 03:10–03:35: quality 0.4M31 03:35–04:00: quality 0.3observe M31 21:55–23:50M42M42 22:25–22:35: quality 0.2M42 22:35–23:05: quality 0.3M42 23:05–02:55: quality 0.4M42 02:55–05:30: quality 0.3M42 05:30–05:40: quality 0.2M42 05:40–06:00: quality 0.1observe M42 03:40–05:05M45M45 18:50–18:55: quality 0.4M45 18:55–19:10: quality 0.5M45 19:10–19:25: quality 0.6M45 19:25–19:35: quality 0.7M45 19:35–20:00: quality 0.8M45 20:00–23:25: quality 0.6M45 23:25–02:25: quality 0.5M45 02:25–05:10: quality 0.4M45 05:10–05:40: quality 0.3M45 05:40–06:00: quality 0.1observe M45 01:45–03:40observe M45 05:05–05:25NGC 7000NGC 7000 17:30–18:05: quality 0.2NGC 7000 18:05–18:40: quality 0.5NGC 7000 18:40–20:00: quality 1.0NGC 7000 20:00–20:50: quality 0.9NGC 7000 20:50–22:10: quality 0.8NGC 7000 22:10–23:25: quality 0.7NGC 7000 23:25–23:45: quality 0.6NGC 7000 23:45–00:05: quality 0.5NGC 7000 00:05–00:25: quality 0.4NGC 7000 00:25–00:30: quality 0.3observe NGC 7000 18:05–20:00V1057 CygV1057 Cyg 17:30–18:05: quality 0.2V1057 Cyg 18:05–18:40: quality 0.5V1057 Cyg 18:40–20:00: quality 1.0V1057 Cyg 20:00–20:50: quality 0.9V1057 Cyg 20:50–22:10: quality 0.8V1057 Cyg 22:10–23:25: quality 0.7V1057 Cyg 23:25–23:45: quality 0.6V1057 Cyg 23:45–00:05: quality 0.5V1057 Cyg 00:05–00:25: quality 0.4V1057 Cyg 00:25–00:30: quality 0.3observe V1057 Cyg 20:00–21:55M33M33 17:30–18:05: quality 0.1M33 18:05–18:30: quality 0.4M33 18:30–18:40: quality 0.5M33 18:40–19:10: quality 0.9M33 19:10–20:00: quality 1.0M33 20:00–21:10: quality 0.8M33 21:10–00:10: quality 0.7M33 00:10–01:50: quality 0.6M33 01:50–03:20: quality 0.5M33 03:20–03:45: quality 0.4M33 03:45–04:10: quality 0.3observe M33 23:50–01:45scheduleNGC 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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–20:00 NGC 7000 1.92 0.85
20:00–21:55 V1057 Cyg 1.92 0.84
21:55–23:50 M31 1.92 0.72
23:50–01:45 M33 1.92 0.62
01:45–03:40 M45 1.92 0.43
03:40–05:05 M42 1.42 0.33
05:05–05:25 M45 0.33 0.33
05:25–07:15 — nothing worth pointing at — 1.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–01:15 (good) 89.6° at 21:20 77.8° 1.92
M42 Great Orion Nebula 26 unknown 22:50–05:05 (marginal) 42.9° at 02:10 36.7° 1.42
M45 Seven Sisters 82 unknown 19:15–20:00 (good) 72.5° at 00:20 44.7° 2.25
NGC 7000 North America Nebula 100 unknown 18:40–23:35 (good) 87.3° at 17:35 106.4° 1.92
V1057 Cyg 100 unknown 18:40–23:35 (good) 87.3° at 17:35 106.4° 1.92
M33 Triangulum Pinwheel 100 unknown 18:40–01:05 (good) 79.1° at 22:10 71.7° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-17"

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"}.