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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, 31 October 2039 · astronomical night 18:51 → 05:18 (10.46 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:20: quality 0.1M31 18:20–18:35: quality 0.3M31 18:35–18:55: quality 0.2M31 18:55–20:05: quality 0.5M31 20:05–22:00: quality 0.4M31 22:00–04:45: quality 0.3M31 04:45–05:10: quality 0.2observe M31 22:10–00:05M42M42 23:30–00:10: quality 0.2M42 00:10–01:50: quality 0.3M42 01:50–04:25: quality 0.4M42 04:25–05:20: quality 0.5M42 05:20–05:55: quality 0.2M42 05:55–06:25: quality 0.1observe M42 00:35–02:30observe M42 04:35–05:20M45M45 19:55–20:30: quality 0.2M45 20:30–03:25: quality 0.3M45 03:25–05:20: quality 0.4M45 05:20–05:55: quality 0.2M45 05:55–06:25: quality 0.1observe M45 02:30–04:25NGC 7000NGC 7000 17:50–18:20: quality 0.1NGC 7000 18:20–18:55: quality 0.4NGC 7000 18:55–20:10: quality 0.7NGC 7000 20:10–22:20: quality 0.6NGC 7000 22:20–00:30: quality 0.5NGC 7000 00:30–01:00: quality 0.4NGC 7000 01:00–01:30: quality 0.3NGC 7000 01:30–01:35: quality 0.2observe NGC 7000 18:20–20:15observe NGC 7000 00:05–00:35V1057 CygV1057 Cyg 17:50–18:20: quality 0.1V1057 Cyg 18:20–18:55: quality 0.4V1057 Cyg 18:55–20:10: quality 0.7V1057 Cyg 20:10–22:20: quality 0.6V1057 Cyg 22:20–00:30: quality 0.5V1057 Cyg 00:30–01:00: quality 0.4V1057 Cyg 01:00–01:30: quality 0.3V1057 Cyg 01:30–01:35: quality 0.2observe V1057 Cyg 20:15–22:10M33M33 17:50–18:20: quality 0.1M33 18:20–18:55: quality 0.2M33 18:55–21:00: quality 0.4M33 21:00–04:55: quality 0.3M33 04:55–05:20: quality 0.2observe M33 04:25–04:35scheduleNGC 7000V1057 CygM31M42M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:15–18:20 — nothing worth pointing at — 1.08
18:20–20:15 NGC 7000 1.92 0.58
20:15–22:10 V1057 Cyg 1.92 0.61
22:10–00:05 M31 1.92 0.32
00:05–00:35 NGC 7000 0.5 0.45
00:35–02:30 M42 1.92 0.34
02:30–04:25 M45 1.92 0.35
04:25–04:35 M33 0.17 0.31
04:35–05:20 M42 0.75 0.46
05:20–06:55 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 46 unknown 18:55–04:25 (marginal) 89.7° at 22:25 37.6° 1.92
M42 Great Orion Nebula 27 unknown 00:30–05:20 (marginal) 42.9° at 03:15 49.8° 2.67
M45 Seven Sisters 30 unknown 02:20–05:20 (marginal) 72.5° at 01:30 22.8° 1.92
NGC 7000 North America Nebula 67 unknown 18:55–21:35 (good) 87.2° at 18:40 76.4° 2.42
V1057 Cyg 67 unknown 18:55–21:35 (good) 87.3° at 18:40 76.4° 1.92
M33 Triangulum Pinwheel 34 unknown 18:55–22:05 (marginal) 79.2° at 23:15 22.9° 0.17
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-10-31"

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"}.