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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, 19 February 2048 · astronomical night 19:31 → 05:37 (10.1 h) · Moon 33% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:30–19:00: quality 0.1M31 19:00–19:10: quality 0.4M31 19:10–19:35: quality 0.3M31 19:35–20:30: quality 0.7M31 20:30–21:05: quality 0.6M31 21:05–21:25: quality 0.5M31 21:25–21:50: quality 0.4observe M31 21:10–21:40M42M42 18:30–19:00: quality 0.1M42 19:00–19:35: quality 0.4M42 19:35–22:55: quality 0.7M42 22:55–23:15: quality 0.6M42 23:15–23:35: quality 0.5M42 23:35–23:50: quality 0.4observe M42 21:40–23:50M45M45 18:30–19:00: quality 0.1M45 19:00–19:35: quality 0.4M45 19:35–21:10: quality 0.8M45 21:10–23:00: quality 0.7M45 23:00–23:20: quality 0.6M45 23:20–23:35: quality 0.5M45 23:35–23:50: quality 0.4observe M45 20:05–21:10NGC 7000NGC 7000 04:30–04:40: quality 0.4NGC 7000 04:40–05:00: quality 0.5NGC 7000 05:00–05:15: quality 0.6NGC 7000 05:15–05:30: quality 0.7NGC 7000 05:30–05:40: quality 0.8NGC 7000 05:40–06:10: quality 0.4NGC 7000 06:10–06:45: quality 0.1observe NGC 7000 04:30–05:35V1057 CygV1057 Cyg 04:30–04:40: quality 0.4V1057 Cyg 04:40–05:00: quality 0.5V1057 Cyg 05:00–05:15: quality 0.6V1057 Cyg 05:15–05:30: quality 0.7V1057 Cyg 05:30–05:40: quality 0.8V1057 Cyg 05:40–06:10: quality 0.4V1057 Cyg 06:10–06:45: quality 0.1observe V1057 Cyg 05:35–06:10M33M33 18:30–19:00: quality 0.1M33 19:00–19:35: quality 0.4M33 19:35–20:55: quality 0.7M33 20:55–21:20: quality 0.6M33 21:20–21:40: quality 0.5M33 21:40–22:00: quality 0.4observe M33 19:00–20:05scheduleM33M45M42NGC 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 M33 1.08 0.51
20:05–21:10 M45 1.08 0.77
21:10–21:40 M31 0.5 0.46
21:40–23:50 M42 2.17 0.63
23:50–04:30 — nothing worth pointing at — 4.67
04:30–05:35 NGC 7000 1.08 0.58
05:35–06:10 V1057 Cyg 0.58 0.46
06:10–07:15 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 27 unknown 19:35–20:55 (good) 89.8° at 15:10 31.5° 0.5
M42 Great Orion Nebula 58 unknown 19:35–23:05 (good) 42.9° at 20:00 52.3° 2.17
M45 Seven Sisters 64 unknown 19:35–23:10 (good) 72.6° at 18:15 19.0° 1.08
NGC 7000 North America Nebula 19 unknown 05:05–05:40 (good) 87.2° at 11:20 71.4° 1.08
V1057 Cyg 19 unknown 05:05–05:40 (good) 87.2° at 11:20 71.4° 0.58
M33 Triangulum Pinwheel 30 unknown 19:35–21:15 (good) 79.2° at 16:00 16.9° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2048-02-19"

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"}.