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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, 17 February 2038 · astronomical night 19:29 → 05:39 (10.16 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:30–19:00: quality 0.1M31 19:00–19:30: quality 0.3M31 19:30–19:35: quality 0.7M31 19:35–20:55: quality 0.6M31 20:55–21:20: quality 0.5M31 21:20–21:40: quality 0.4M31 21:40–21:55: quality 0.3observe M31 19:00–20:05M42M42 18:30–19:00: quality 0.1M42 19:00–19:30: quality 0.2M42 19:30–21:45: quality 0.4M42 21:45–23:20: quality 0.3M42 23:20–23:55: quality 0.2observe M42 22:15–23:00M45M45 18:30–19:00: quality 0.1M45 19:00–19:30: quality 0.3M45 19:30–20:00: quality 0.6M45 20:00–21:50: quality 0.5M45 21:50–23:15: quality 0.4M45 23:15–23:45: quality 0.3M45 23:45–23:55: quality 0.2observe M45 21:10–22:15observe M45 23:00–23:30NGC 7000NGC 7000 04:35–04:55: quality 0.4NGC 7000 04:55–05:15: quality 0.5NGC 7000 05:15–05:35: quality 0.6NGC 7000 05:35–05:40: quality 0.7NGC 7000 05:40–05:45: quality 0.3NGC 7000 05:45–06:15: quality 0.4NGC 7000 06:15–06:45: quality 0.1observe NGC 7000 04:35–05:40V1057 CygV1057 Cyg 04:40–04:55: quality 0.4V1057 Cyg 04:55–05:15: quality 0.5V1057 Cyg 05:15–05:35: quality 0.6V1057 Cyg 05:35–05:40: quality 0.7V1057 Cyg 05:40–05:45: quality 0.3V1057 Cyg 05:45–06:15: quality 0.4V1057 Cyg 06:15–06:45: quality 0.1observe V1057 Cyg 05:40–06:15M33M33 18:30–19:00: quality 0.1M33 19:00–19:30: quality 0.3M33 19:30–19:40: quality 0.7M33 19:40–21:05: quality 0.6M33 21:05–21:30: quality 0.5M33 21:30–21:50: quality 0.4M33 21:50–22:10: quality 0.3observe M33 20:05–21:10scheduleM31M33M45M42NGC 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
17:55–19:00 — nothing worth pointing at — 1.08
19:00–20:05 M31 1.08 0.5
20:05–21:10 M33 1.08 0.58
21:10–22:15 M45 1.08 0.46
22:15–23:00 M42 0.75 0.32
23:00–23:30 M45 0.5 0.35
23:30–04:35 — nothing worth pointing at — 5.08
04:35–05:40 NGC 7000 1.08 0.51
05:40–06:15 V1057 Cyg 0.58 0.36
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 25 unknown 19:30–20:20 (good) 89.8° at 15:15 96.0° 1.08
M42 Great Orion Nebula 17 unknown 19:30–23:00 (marginal) 42.9° at 20:05 51.1° 0.75
M45 Seven Sisters 31 unknown 19:30–23:30 (marginal) 72.5° at 18:20 66.2° 1.58
NGC 7000 North America Nebula 14 unknown 05:25–05:40 (good) 87.2° at 11:25 115.2° 1.08
V1057 Cyg 13 unknown 05:25–05:40 (good) 87.2° at 11:25 115.3° 0.58
M33 Triangulum Pinwheel 27 unknown 19:30–20:20 (good) 79.2° at 16:05 92.1° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2038-02-17"

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"}.