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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 Tuesday, 16 February 2038 · astronomical night 19:28 → 05:40 (10.2 h) · Moon 90% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:25–19:00: quality 0.1M31 19:00–19:30: quality 0.3M31 19:30–20:20: quality 0.6M31 20:20–21:15: quality 0.5M31 21:15–21:35: quality 0.4M31 21:35–22:00: quality 0.3observe M31 19:00–20:00M42M42 18:25–19:00: quality 0.1M42 19:00–19:30: quality 0.2M42 19:30–19:55: quality 0.4M42 19:55–23:20: quality 0.3M42 23:20–00:00: quality 0.2observe M42 22:00–22:25M45M45 18:25–19:00: quality 0.1M45 19:00–19:30: quality 0.2M45 19:30–20:30: quality 0.5M45 20:30–23:10: quality 0.4M45 23:10–23:40: quality 0.3M45 23:40–00:00: quality 0.2observe M45 21:00–22:00observe M45 22:25–23:25NGC 7000NGC 7000 18:25–18:30: quality 0.1NGC 7000 04:40–05:00: quality 0.4NGC 7000 05:00–05:20: quality 0.5NGC 7000 05:20–05:35: quality 0.6NGC 7000 05:35–05:40: quality 0.7NGC 7000 05:40–05:45: quality 0.8NGC 7000 05:45–06:15: quality 0.4NGC 7000 06:15–06:50: quality 0.1observe NGC 7000 04:40–05:40V1057 CygV1057 Cyg 18:25–18:30: quality 0.1V1057 Cyg 04:40–05:00: quality 0.4V1057 Cyg 05:00–05:20: quality 0.5V1057 Cyg 05:20–05:35: quality 0.6V1057 Cyg 05:35–05:40: quality 0.7V1057 Cyg 05:40–05:45: quality 0.8V1057 Cyg 05:45–06:15: quality 0.4V1057 Cyg 06:15–06:50: quality 0.1observe V1057 Cyg 05:40–06:15M33M33 18:25–19:00: quality 0.1M33 19:00–19:30: quality 0.3M33 19:30–20:05: quality 0.6M33 20:05–21:25: quality 0.5M33 21:25–21:45: quality 0.4M33 21:45–22:10: quality 0.3observe M33 20:00–21:00scheduleM31M33M45M45NGC 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
19:00–20:00 M31 1.0 0.45
20:00–21:00 M33 1.0 0.53
21:00–22:00 M45 1.0 0.41
22:00–22:25 M42 0.42 0.3
22:25–23:25 M45 1.0 0.35
23:25–04:40 — nothing worth pointing at — 5.25
04:40–05:40 NGC 7000 1.0 0.5
05:40–06:15 V1057 Cyg 0.58 0.45
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 21 unknown 19:00–21:50 (marginal) 89.7° at 15:20 85.0° 1.0
M42 Great Orion Nebula 13 unknown 19:30–22:25 (marginal) 42.9° at 20:10 40.1° 0.42
M45 Seven Sisters 23 unknown 19:30–23:25 (marginal) 72.5° at 18:25 52.4° 2.0
NGC 7000 North America Nebula 16 unknown 05:30–05:45 (good) 87.2° at 11:30 111.1° 1.0
V1057 Cyg 16 unknown 05:30–05:45 (good) 87.3° at 11:30 111.1° 0.58
M33 Triangulum Pinwheel 22 unknown 19:30–22:00 (marginal) 79.2° at 16:10 79.3° 1.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2038-02-16"

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"}.