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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 Wednesday, 05 January 2039 · astronomical night 18:44 → 06:08 (11.4 h) · Moon 82% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:25: quality 0.3M31 18:25–18:45: quality 0.2M31 18:45–21:10: quality 0.5M31 21:10–00:05: quality 0.4M31 00:05–00:40: quality 0.3M31 00:40–00:45: quality 0.2observe M31 21:05–22:30M42M42 19:10–19:40: quality 0.2M42 19:40–20:55: quality 0.3M42 20:55–01:10: quality 0.4M42 01:10–01:45: quality 0.5M42 01:45–02:20: quality 0.4M42 02:20–02:45: quality 0.3observe M42 01:20–02:35M45M45 17:40–18:15: quality 0.1M45 18:15–18:45: quality 0.2M45 18:45–02:20: quality 0.4M45 02:20–02:45: quality 0.3observe M45 23:55–01:20NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:45: quality 0.3NGC 7000 18:45–20:05: quality 0.6NGC 7000 20:05–20:30: quality 0.5NGC 7000 20:30–20:55: quality 0.4NGC 7000 20:55–21:15: quality 0.3observe NGC 7000 18:15–19:40V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:45: quality 0.3V1057 Cyg 18:45–20:05: quality 0.6V1057 Cyg 20:05–20:30: quality 0.5V1057 Cyg 20:30–20:55: quality 0.4V1057 Cyg 20:55–21:15: quality 0.3observe V1057 Cyg 19:40–21:05M33M33 17:40–18:15: quality 0.1M33 18:15–18:45: quality 0.2M33 18:45–00:10: quality 0.4M33 00:10–00:40: quality 0.3M33 00:40–01:00: quality 0.2observe M33 22:30–23:55scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:00–18:15 — nothing worth pointing at — 1.25
18:15–19:40 NGC 7000 1.42 0.5
19:40–21:05 V1057 Cyg 1.42 0.47
21:05–22:30 M31 1.42 0.44
22:30–23:55 M33 1.42 0.37
23:55–01:20 M45 1.42 0.43
01:20–02:35 M42 1.25 0.4
02:35–07:50 — nothing worth pointing at — 5.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 18:45–00:20 (marginal) 89.8° at 18:05 44.5° 1.42
M42 Great Orion Nebula 32 unknown 20:00–02:35 (marginal) 42.9° at 22:55 37.0° 1.25
M45 Seven Sisters 37 unknown 18:45–02:30 (marginal) 72.5° at 21:10 8.8° 1.42
NGC 7000 North America Nebula 23 unknown 18:45–19:10 (good) 87.2° at 14:20 84.9° 1.42
V1057 Cyg 23 unknown 18:45–19:10 (good) 87.3° at 14:20 84.9° 1.42
M33 Triangulum Pinwheel 26 unknown 18:45–00:25 (marginal) 79.2° at 18:55 30.9° 1.42

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-01-05"

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"}.