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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, 27 October 2028 · astronomical night 19:55 → 06:15 (10.33 h) · Moon 75% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:55–19:25: quality 0.1M31 19:25–20:00: quality 0.3M31 20:00–23:20: quality 0.6M31 23:20–02:20: quality 0.7M31 02:20–02:25: quality 0.8M31 02:25–02:55: quality 0.7M31 02:55–03:05: quality 1.0M31 03:05–04:30: quality 0.9M31 04:30–05:25: quality 0.8M31 05:25–05:40: quality 0.7M31 05:40–05:55: quality 0.6M31 05:55–06:10: quality 0.5M31 06:10–06:20: quality 0.4observe M31 03:05–05:00M42M42 00:45–01:00: quality 0.4M42 01:00–01:20: quality 0.5M42 01:20–01:40: quality 0.6M42 01:40–02:30: quality 0.7M42 02:30–02:55: quality 0.8M42 02:55–06:15: quality 0.9M42 06:15–06:20: quality 0.8M42 06:20–06:50: quality 0.4M42 06:50–07:25: quality 0.1observe M42 05:00–06:50M45M45 21:10–21:20: quality 0.3M45 21:20–21:35: quality 0.4M45 21:35–21:55: quality 0.5M45 21:55–22:50: quality 0.6M45 22:50–00:15: quality 0.7M45 00:15–02:55: quality 0.8M45 02:55–05:25: quality 1.0M45 05:25–06:20: quality 0.9M45 06:20–06:50: quality 0.4M45 06:50–07:25: quality 0.1observe M45 23:15–01:10NGC 7000NGC 7000 18:55–19:25: quality 0.1NGC 7000 19:25–20:00: quality 0.3NGC 7000 20:00–01:45: quality 0.6NGC 7000 01:45–02:10: quality 0.5NGC 7000 02:10–02:40: quality 0.4NGC 7000 02:40–02:50: quality 0.3observe NGC 7000 19:25–21:20V1057 CygV1057 Cyg 18:55–19:25: quality 0.1V1057 Cyg 19:25–20:00: quality 0.3V1057 Cyg 20:00–01:45: quality 0.6V1057 Cyg 01:45–02:10: quality 0.5V1057 Cyg 02:10–02:40: quality 0.4V1057 Cyg 02:40–02:50: quality 0.3observe V1057 Cyg 21:20–23:15M33M33 18:55–19:25: quality 0.1M33 19:25–20:00: quality 0.3M33 20:00–20:25: quality 0.5M33 20:25–23:05: quality 0.6M33 23:05–02:15: quality 0.7M33 02:15–02:55: quality 0.8M33 02:55–03:30: quality 1.0M33 03:30–04:50: quality 0.9M33 04:50–05:40: quality 0.8M33 05:40–05:55: quality 0.7M33 05:55–06:10: quality 0.6M33 06:10–06:20: quality 0.5M33 06:20–06:30: quality 0.2observe M33 01:10–03:05scheduleNGC 7000V1057 CygM45M33M31M4220:0022:0000:0002:0004:0006:00

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
18:20–19:25 — nothing worth pointing at — 1.08
19:25–21:20 NGC 7000 1.92 0.52
21:20–23:15 V1057 Cyg 1.92 0.61
23:15–01:10 M45 1.92 0.74
01:10–03:05 M33 1.92 0.76
03:05–05:00 M31 1.92 0.88
05:00–06:50 M42 1.83 0.75
06:50–07:50 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 96 unknown 20:20–05:45 (good) 89.6° at 23:40 57.4° 1.92
M42 Great Orion Nebula 89 unknown 01:30–06:20 (good) 42.9° at 04:30 107.6° 1.83
M45 Seven Sisters 100 unknown 22:05–06:20 (good) 72.5° at 02:40 84.6° 1.92
NGC 7000 North America Nebula 62 unknown 20:00–23:40 (good) 87.2° at 19:55 53.9° 1.92
V1057 Cyg 62 unknown 20:00–23:40 (good) 87.3° at 19:55 53.8° 1.92
M33 Triangulum Pinwheel 99 unknown 21:30–06:00 (good) 79.1° at 00:30 58.9° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-10-27"

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"}.