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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, 29 December 2031 · astronomical night 18:38 → 06:07 (11.48 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.2M31 18:05–18:40: quality 0.4M31 18:40–19:40: quality 0.8M31 19:40–21:55: quality 0.7M31 21:55–23:25: quality 0.6M31 23:25–00:25: quality 0.5M31 00:25–00:50: quality 0.4M31 00:50–01:15: quality 0.3observe M31 20:55–22:20M42M42 19:40–19:55: quality 0.2M42 19:55–20:40: quality 0.3M42 20:40–21:15: quality 0.4M42 21:15–00:55: quality 0.3M42 00:55–03:05: quality 0.2M42 03:05–03:15: quality 0.1M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.3M45 18:40–20:30: quality 0.6M45 20:30–22:35: quality 0.5M45 22:35–01:15: quality 0.4M45 01:15–02:45: quality 0.3M45 02:45–03:15: quality 0.2observe M45 23:45–02:30NGC 7000NGC 7000 17:30–17:35: quality 0.2NGC 7000 17:35–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–19:45: quality 0.8NGC 7000 19:45–20:45: quality 0.7NGC 7000 20:45–21:05: quality 0.6NGC 7000 21:05–21:20: quality 0.5NGC 7000 21:20–21:40: quality 0.4NGC 7000 21:40–21:45: quality 0.3observe NGC 7000 19:30–20:55V1057 CygV1057 Cyg 17:30–17:35: quality 0.2V1057 Cyg 17:35–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–19:45: quality 0.8V1057 Cyg 19:45–20:45: quality 0.7V1057 Cyg 20:45–21:00: quality 0.6V1057 Cyg 21:00–21:20: quality 0.5V1057 Cyg 21:20–21:40: quality 0.4V1057 Cyg 21:40–21:45: quality 0.3observe V1057 Cyg 18:05–19:30M33M33 17:30–18:05: quality 0.2M33 18:05–18:40: quality 0.4M33 18:40–18:55: quality 0.8M33 18:55–21:35: quality 0.7M33 21:35–23:05: quality 0.6M33 23:05–00:35: quality 0.5M33 00:35–00:55: quality 0.4M33 00:55–01:20: quality 0.3M33 01:20–01:25: quality 0.2observe M33 22:20–23:45scheduleV1057 CygNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–19:30 V1057 Cyg 1.42 0.64
19:30–20:55 NGC 7000 1.42 0.71
20:55–22:20 M31 1.42 0.67
22:20–23:45 M33 1.42 0.55
23:45–02:30 M45 2.75 0.36
02:30–07:50 — nothing worth pointing at — 5.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 78 unknown 18:40–22:35 (good) 89.7° at 18:35 86.9° 1.42
M42 Great Orion Nebula 19 unknown 20:15–22:50 (marginal) 42.9° at 23:25 36.0° 0.0
M45 Seven Sisters 60 unknown 18:40–19:10 (good) 72.5° at 21:35 52.1° 2.75
NGC 7000 North America Nebula 49 unknown 18:40–20:55 (good) 87.2° at 14:50 115.1° 1.42
V1057 Cyg 49 unknown 18:40–20:55 (good) 87.3° at 14:50 115.1° 1.42
M33 Triangulum Pinwheel 76 unknown 18:40–22:20 (good) 79.1° at 19:25 80.2° 1.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-12-29"

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"}.