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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, 29 October 2027 · astronomical night 19:53 → 06:16 (10.38 h) · Moon 0% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:50–19:25: quality 0.1M31 19:25–19:30: quality 0.4M31 19:30–19:55: quality 0.5M31 19:55–20:15: quality 0.9M31 20:15–03:00: quality 1.0M31 03:00–04:25: quality 0.9M31 04:25–05:20: quality 0.8M31 05:20–05:35: quality 0.7M31 05:35–05:50: quality 0.6M31 05:50–06:05: quality 0.5M31 06:05–06:15: quality 0.4observe M31 23:15–01:10M42M42 00:40–00:50: quality 0.4M42 00:50–01:05: quality 0.5M42 01:05–01:20: quality 0.6M42 01:20–01:35: quality 0.7M42 01:35–02:45: quality 0.8M42 02:45–06:10: quality 0.9M42 06:10–06:20: quality 0.8M42 06:20–06:50: quality 0.4M42 06:50–07:25: quality 0.1observe M42 05:00–06:50M45M45 21:05–21:10: quality 0.4M45 21:10–21:25: quality 0.5M45 21:25–21:40: quality 0.6M45 21:40–21:50: quality 0.7M45 21:50–22:40: quality 0.8M45 22:40–00:00: quality 0.9M45 00:00–05:20: quality 1.0M45 05:20–06:20: quality 0.9M45 06:20–06:50: quality 0.4M45 06:50–07:25: quality 0.1observe M45 03:05–05:00NGC 7000NGC 7000 18:50–19:25: quality 0.2NGC 7000 19:25–19:55: quality 0.5NGC 7000 19:55–23:20: quality 1.0NGC 7000 23:20–00:50: quality 0.9NGC 7000 00:50–01:45: quality 0.8NGC 7000 01:45–02:00: quality 0.7NGC 7000 02:00–02:20: quality 0.6NGC 7000 02:20–02:35: quality 0.5NGC 7000 02:35–02:45: quality 0.4observe NGC 7000 19:25–21:20V1057 CygV1057 Cyg 18:50–19:25: quality 0.2V1057 Cyg 19:25–19:55: quality 0.5V1057 Cyg 19:55–23:20: quality 1.0V1057 Cyg 23:20–00:50: quality 0.9V1057 Cyg 00:50–01:45: quality 0.8V1057 Cyg 01:45–02:00: quality 0.7V1057 Cyg 02:00–02:20: quality 0.6V1057 Cyg 02:20–02:35: quality 0.5V1057 Cyg 02:35–02:45: quality 0.4observe V1057 Cyg 21:20–23:15M33M33 18:50–19:25: quality 0.1M33 19:25–19:55: quality 0.4M33 19:55–20:05: quality 0.8M33 20:05–21:25: quality 0.9M33 21:25–03:25: quality 1.0M33 03:25–04:45: quality 0.9M33 04:45–05:35: quality 0.8M33 05:35–05:50: quality 0.7M33 05:50–06:05: quality 0.6M33 06:05–06:20: quality 0.5M33 06:20–06:25: quality 0.2observe M33 01:10–03:05scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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 0.87
21:20–23:15 V1057 Cyg 1.92 0.99
23:15–01:10 M31 1.92 1.0
01:10–03:05 M33 1.92 1.0
03:05–05:00 M45 1.92 1.0
05:00–06:50 M42 1.83 0.74
06:50–07:55 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 19:55–05:40 (good) 89.6° at 23:35 149.2° 1.92
M42 Great Orion Nebula 89 unknown 01:10–06:20 (good) 42.9° at 04:25 127.2° 1.83
M45 Seven Sisters 100 unknown 21:30–06:20 (good) 72.5° at 02:35 161.0° 1.92
NGC 7000 North America Nebula 100 unknown 19:55–02:10 (good) 87.3° at 19:50 109.3° 1.92
V1057 Cyg 100 unknown 19:55–02:10 (good) 87.3° at 19:50 109.3° 1.92
M33 Triangulum Pinwheel 100 unknown 19:55–05:55 (good) 79.1° at 00:25 163.9° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-10-29"

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"}.