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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 Monday, 15 November 2027 · astronomical night 18:37 → 05:34 (10.95 h) · Moon 96% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:35–18:05: quality 0.1M31 18:05–18:40: quality 0.3M31 18:40–20:45: quality 0.6M31 20:45–23:05: quality 0.5M31 23:05–02:10: quality 0.4M31 02:10–03:40: quality 0.3M31 03:40–04:10: quality 0.2observe M31 21:45–23:35observe M31 02:30–03:15M42M42 22:35–22:40: quality 0.1M42 22:40–03:20: quality 0.2M42 03:20–05:25: quality 0.3M42 05:25–05:35: quality 0.2M42 05:35–06:10: quality 0.1M45M45 18:55–19:05: quality 0.2M45 19:05–19:35: quality 0.3M45 19:35–21:40: quality 0.4M45 21:40–01:05: quality 0.3M45 01:05–03:20: quality 0.2M45 03:20–05:25: quality 0.3M45 05:25–05:35: quality 0.2M45 05:35–06:10: quality 0.1NGC 7000NGC 7000 17:35–17:50: quality 0.2NGC 7000 17:50–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–20:15: quality 0.8NGC 7000 20:15–21:40: quality 0.7NGC 7000 21:40–23:15: quality 0.6NGC 7000 23:15–23:50: quality 0.5NGC 7000 23:50–00:15: quality 0.4NGC 7000 00:15–00:40: quality 0.3observe NGC 7000 18:05–19:55V1057 CygV1057 Cyg 17:35–17:50: quality 0.2V1057 Cyg 17:50–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–20:15: quality 0.8V1057 Cyg 20:15–21:40: quality 0.7V1057 Cyg 21:40–23:15: quality 0.6V1057 Cyg 23:15–23:50: quality 0.5V1057 Cyg 23:50–00:15: quality 0.4V1057 Cyg 00:15–00:40: quality 0.3observe V1057 Cyg 19:55–21:45M33M33 17:35–18:05: quality 0.1M33 18:05–18:40: quality 0.3M33 18:40–19:40: quality 0.6M33 19:40–21:50: quality 0.5M33 21:50–00:45: quality 0.4M33 00:45–03:40: quality 0.3M33 03:40–04:20: quality 0.2observe M33 23:35–02:30scheduleNGC 7000V1057 CygM31M3318:0020:0022:0000:0002:0004:0006:00

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
18:05–19:55 NGC 7000 1.83 0.66
19:55–21:45 V1057 Cyg 1.83 0.71
21:45–23:35 M31 1.83 0.47
23:35–02:30 M33 2.92 0.34
02:30–03:15 M31 0.75 0.33
03:15–07:15 — nothing worth pointing at — 4.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 65 unknown 18:40–19:45 (good) 89.6° at 21:25 53.8° 2.58
M42 Great Orion Nebula 12 unknown — 42.9° at 02:20 33.1° 0.0
M45 Seven Sisters 31 unknown 19:20–23:10 (marginal) 72.5° at 00:30 16.4° 0.0
NGC 7000 North America Nebula 80 unknown 18:40–22:25 (good) 87.2° at 17:45 90.4° 1.83
V1057 Cyg 80 unknown 18:40–22:25 (good) 87.3° at 17:45 90.4° 1.83
M33 Triangulum Pinwheel 56 unknown 18:40–02:30 (marginal) 79.1° at 22:20 44.7° 2.92

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-11-15"

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"}.