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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 Thursday, 14 February 2041 · astronomical night 19:26 → 05:42 (10.27 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:25–18:55: quality 0.1M31 18:55–19:30: quality 0.4M31 19:30–20:10: quality 0.7M31 20:10–21:10: quality 0.6M31 21:10–21:35: quality 0.5M31 21:35–21:55: quality 0.4M31 21:55–22:10: quality 0.3observe M31 20:00–21:05M42M42 18:25–18:55: quality 0.1M42 18:55–19:30: quality 0.2M42 19:30–20:30: quality 0.5M42 20:30–23:05: quality 0.4M42 23:05–23:40: quality 0.3M42 23:40–00:10: quality 0.2observe M42 22:10–23:15M45M45 18:25–18:55: quality 0.1M45 18:55–19:30: quality 0.3M45 19:30–21:05: quality 0.6M45 21:05–22:50: quality 0.5M45 22:50–23:35: quality 0.4M45 23:35–00:00: quality 0.3M45 00:00–00:10: quality 0.2observe M45 21:05–22:10observe M45 23:15–23:45NGC 7000NGC 7000 18:25–18:35: quality 0.1NGC 7000 04:50–05:10: quality 0.4NGC 7000 05:10–05:30: quality 0.5NGC 7000 05:30–05:45: quality 0.6NGC 7000 05:45–05:55: quality 0.3NGC 7000 05:55–06:20: quality 0.4NGC 7000 06:20–06:50: quality 0.1observe NGC 7000 04:50–05:55V1057 CygV1057 Cyg 18:25–18:35: quality 0.1V1057 Cyg 04:50–05:10: quality 0.4V1057 Cyg 05:10–05:30: quality 0.5V1057 Cyg 05:30–05:45: quality 0.6V1057 Cyg 05:45–05:55: quality 0.3V1057 Cyg 05:55–06:20: quality 0.4V1057 Cyg 06:20–06:50: quality 0.1observe V1057 Cyg 05:55–06:20M33M33 18:25–18:55: quality 0.1M33 18:55–19:30: quality 0.4M33 19:30–20:20: quality 0.7M33 20:20–21:25: quality 0.6M33 21:25–21:45: quality 0.5M33 21:45–22:05: quality 0.4M33 22:05–22:20: quality 0.3observe M33 18:55–20:00scheduleM33M31M45M42NGC 700018:0020:0022:0000:0002:0004:0006:00

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
17:50–18:55 — nothing worth pointing at — 1.08
18:55–20:00 M33 1.08 0.52
20:00–21:05 M31 1.08 0.63
21:05–22:10 M45 1.08 0.52
22:10–23:15 M42 1.08 0.36
23:15–23:45 M45 0.5 0.36
23:45–04:50 — nothing worth pointing at — 5.08
04:50–05:55 NGC 7000 1.08 0.47
05:55–06:20 V1057 Cyg 0.42 0.36
06:20–07:20 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 31 unknown 19:30–20:55 (good) 89.7° at 15:25 100.6° 1.08
M42 Great Orion Nebula 24 unknown 19:30–23:25 (marginal) 42.9° at 20:20 59.5° 1.08
M45 Seven Sisters 40 unknown 19:30–20:20 (good) 72.5° at 18:30 74.0° 1.58
NGC 7000 North America Nebula 11 unknown 05:40–05:45 (good) 87.2° at 11:40 114.2° 1.08
V1057 Cyg 11 unknown 05:40–05:45 (good) 87.3° at 11:40 114.3° 0.42
M33 Triangulum Pinwheel 33 unknown 19:30–21:00 (good) 79.2° at 16:15 98.5° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-02-14"

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"}.