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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 Friday, 26 November 2027 · astronomical night 18:31 → 05:45 (11.23 h) · Moon 2% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.5M31 18:35–00:10: quality 1.0M31 00:10–01:35: quality 0.9M31 01:35–02:30: quality 0.8M31 02:30–02:45: quality 0.7M31 02:45–03:00: quality 0.6M31 03:00–03:15: quality 0.5M31 03:15–03:25: quality 0.4observe M31 21:50–23:45M42M42 21:50–21:55: quality 0.4M42 21:55–22:15: quality 0.5M42 22:15–22:30: quality 0.6M42 22:30–22:45: quality 0.7M42 22:45–23:55: quality 0.8M42 23:55–03:20: quality 0.9M42 03:20–04:30: quality 0.8M42 04:30–04:45: quality 0.7M42 04:45–05:00: quality 0.6M42 05:00–05:20: quality 0.5M42 05:20–05:25: quality 0.4observe M42 03:35–05:25M45M45 18:15–18:25: quality 0.2M45 18:25–18:35: quality 0.3M45 18:35–18:50: quality 0.6M45 18:50–19:00: quality 0.7M45 19:00–19:50: quality 0.8M45 19:50–21:10: quality 0.9M45 21:10–02:30: quality 1.0M45 02:30–03:50: quality 0.9M45 03:50–04:35: quality 0.8M45 04:35–04:50: quality 0.7M45 04:50–05:05: quality 0.6M45 05:05–05:20: quality 0.5M45 05:20–05:25: quality 0.4observe M45 01:40–03:35NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–20:30: quality 1.0NGC 7000 20:30–22:00: quality 0.9NGC 7000 22:00–22:55: quality 0.8NGC 7000 22:55–23:10: quality 0.7NGC 7000 23:10–23:30: quality 0.6NGC 7000 23:30–23:45: quality 0.5NGC 7000 23:45–23:55: quality 0.4observe NGC 7000 18:00–19:55V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–20:30: quality 1.0V1057 Cyg 20:30–22:00: quality 0.9V1057 Cyg 22:00–22:55: quality 0.8V1057 Cyg 22:55–23:10: quality 0.7V1057 Cyg 23:10–23:30: quality 0.6V1057 Cyg 23:30–23:45: quality 0.5V1057 Cyg 23:45–23:55: quality 0.4observe V1057 Cyg 19:55–21:50M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–00:35: quality 1.0M33 00:35–01:55: quality 0.9M33 01:55–02:45: quality 0.8M33 02:45–03:00: quality 0.7M33 03:00–03:15: quality 0.6M33 03:15–03:30: quality 0.5M33 03:30–03:35: quality 0.4observe M33 23:45–01:40scheduleNGC 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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:55 NGC 7000 1.92 0.85
19:55–21:50 V1057 Cyg 1.92 0.92
21:50–23:45 M31 1.92 1.0
23:45–01:40 M33 1.92 0.94
01:40–03:35 M45 1.92 0.94
03:35–05:25 M42 1.83 0.69
05:25–07:25 — nothing worth pointing at — 2.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–02:50 (good) 89.6° at 20:45 145.1° 1.92
M42 Great Orion Nebula 89 unknown 22:20–04:55 (good) 42.9° at 01:35 133.6° 1.83
M45 Seven Sisters 100 unknown 18:40–05:00 (good) 72.5° at 23:45 169.8° 1.92
NGC 7000 North America Nebula 100 unknown 18:35–23:20 (good) 87.3° at 17:00 104.7° 1.92
V1057 Cyg 100 unknown 18:35–23:20 (good) 87.3° at 17:00 104.7° 1.92
M33 Triangulum Pinwheel 100 unknown 18:35–03:05 (good) 79.1° at 21:35 158.5° 1.92

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-26"

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"}.