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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 Saturday, 24 January 2043 · astronomical night 19:02 → 06:03 (11.0 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:00–18:30: quality 0.1M31 18:30–19:05: quality 0.4M31 19:05–20:25: quality 0.7M31 20:25–21:55: quality 0.6M31 21:55–22:45: quality 0.5M31 22:45–23:10: quality 0.4M31 23:10–23:35: quality 0.3observe M31 20:00–21:05M42M42 18:25–18:30: quality 0.1M42 18:30–19:05: quality 0.2M42 19:05–21:55: quality 0.4M42 21:55–00:45: quality 0.3M42 00:45–01:30: quality 0.2observe M42 23:15–23:40M45M45 18:00–18:30: quality 0.1M45 18:30–19:05: quality 0.3M45 19:05–19:45: quality 0.6M45 19:45–22:15: quality 0.5M45 22:15–00:30: quality 0.4M45 00:30–01:10: quality 0.3M45 01:10–01:35: quality 0.2observe M45 22:10–23:15observe M45 23:40–00:55NGC 7000NGC 7000 18:00–18:30: quality 0.1NGC 7000 18:30–19:05: quality 0.3NGC 7000 19:05–19:15: quality 0.6NGC 7000 19:15–19:35: quality 0.5NGC 7000 19:35–19:55: quality 0.4NGC 7000 19:55–20:00: quality 0.3NGC 7000 06:10–06:40: quality 0.2NGC 7000 06:40–07:10: quality 0.1observe NGC 7000 18:30–19:35V1057 CygV1057 Cyg 18:00–18:30: quality 0.1V1057 Cyg 18:30–19:05: quality 0.3V1057 Cyg 19:05–19:15: quality 0.6V1057 Cyg 19:15–19:35: quality 0.5V1057 Cyg 19:35–19:55: quality 0.4V1057 Cyg 19:55–20:00: quality 0.3V1057 Cyg 06:15–06:40: quality 0.2V1057 Cyg 06:40–07:10: quality 0.1observe V1057 Cyg 19:35–20:00M33M33 18:00–18:30: quality 0.1M33 18:30–19:05: quality 0.4M33 19:05–20:25: quality 0.7M33 20:25–21:50: quality 0.6M33 21:50–22:55: quality 0.5M33 22:55–23:20: quality 0.4M33 23:20–23:40: quality 0.3M33 23:40–23:45: quality 0.2observe M33 21:05–22:10scheduleNGC 7000M31M33M45M4518:0020:0022:0000:0002:0004:0006:00

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
17:25–18:30 — nothing worth pointing at — 1.08
18:30–19:35 NGC 7000 1.08 0.43
19:35–20:00 V1057 Cyg 0.42 0.4
20:00–21:05 M31 1.08 0.64
21:05–22:10 M33 1.08 0.56
22:10–23:15 M45 1.08 0.42
23:15–23:40 M42 0.42 0.3
23:40–00:55 M45 1.25 0.35
00:55–07:40 — nothing worth pointing at — 6.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 51 unknown 19:05–21:05 (good) 89.8° at 16:50 89.5° 1.08
M42 Great Orion Nebula 24 unknown 19:05–23:40 (marginal) 42.9° at 21:40 49.1° 0.42
M45 Seven Sisters 44 unknown 19:05–00:55 (marginal) 72.6° at 19:55 60.5° 2.33
NGC 7000 North America Nebula 12 unknown 18:30–20:00 (marginal) 87.2° at 13:05 110.3° 1.08
V1057 Cyg 12 unknown 18:30–20:00 (marginal) 87.2° at 13:05 110.3° 0.42
M33 Triangulum Pinwheel 51 unknown 19:05–21:05 (good) 79.2° at 17:40 85.8° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-01-24"

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"}.