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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 Sunday, 16 December 2029 · astronomical night 18:32 → 06:01 (11.5 h) · Moon 86% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.2M31 18:35–01:10: quality 0.4M31 01:10–01:50: quality 0.3M31 01:50–02:05: quality 0.2observe M31 21:30–23:15M42M42 20:30–20:50: quality 0.2M42 20:50–21:25: quality 0.3M42 21:25–23:40: quality 0.4M42 23:40–03:20: quality 0.5M42 03:20–03:50: quality 0.4M42 03:50–04:05: quality 0.3observe M42 23:15–01:00observe M42 03:55–04:00M45M45 17:45–18:00: quality 0.1M45 18:00–18:35: quality 0.2M45 18:35–22:00: quality 0.3M45 22:00–01:45: quality 0.4M45 01:45–03:15: quality 0.5M45 03:15–03:40: quality 0.4M45 03:40–04:05: quality 0.3observe M45 01:45–03:55NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–19:35: quality 0.6NGC 7000 19:35–21:30: quality 0.5NGC 7000 21:30–22:00: quality 0.4NGC 7000 22:00–22:30: quality 0.3NGC 7000 22:30–22:35: quality 0.2observe NGC 7000 18:00–19:45V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–19:35: quality 0.6V1057 Cyg 19:35–21:30: quality 0.5V1057 Cyg 21:30–22:00: quality 0.4V1057 Cyg 22:00–22:30: quality 0.3V1057 Cyg 22:30–22:35: quality 0.2observe V1057 Cyg 19:45–21:30M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–20:10: quality 0.4M33 20:10–22:00: quality 0.3M33 22:00–01:30: quality 0.4M33 01:30–02:00: quality 0.3M33 02:00–02:15: quality 0.2observe M33 01:00–01:45scheduleNGC 7000V1057 CygM31M42M4518:0020:0022:0000:0002:0004:0006:00

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
18:00–19:45 NGC 7000 1.75 0.49
19:45–21:30 V1057 Cyg 1.75 0.5
21:30–23:15 M31 1.75 0.36
23:15–01:00 M42 1.75 0.47
01:00–01:45 M33 0.75 0.35
01:45–03:55 M45 2.17 0.43
03:55–04:00 M42 0.08 0.31
04:00–07:45 — nothing worth pointing at — 3.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 28 unknown 18:35–01:30 (marginal) 89.5° at 19:25 32.1° 1.75
M42 Great Orion Nebula 43 unknown 21:05–04:00 (marginal) 42.9° at 00:15 51.7° 1.83
M45 Seven Sisters 44 unknown 18:35–03:55 (marginal) 72.5° at 22:25 18.7° 2.17
NGC 7000 North America Nebula 33 unknown 18:35–18:45 (good) 87.2° at 15:40 72.0° 1.75
V1057 Cyg 33 unknown 18:35–18:45 (good) 87.3° at 15:40 72.0° 1.75
M33 Triangulum Pinwheel 28 unknown 18:35–01:45 (marginal) 79.1° at 20:15 17.4° 0.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-12-16"

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"}.