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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 Friday, 11 February 2028 · astronomical night 19:22 → 05:47 (10.42 h) · Moon 97% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:20–18:25: quality 0.2M31 18:25–18:55: quality 0.1M31 18:55–19:15: quality 0.5M31 19:15–19:25: quality 0.4M31 19:25–19:30: quality 0.9M31 19:30–20:50: quality 0.8M31 20:50–21:30: quality 0.7M31 21:30–21:45: quality 0.6M31 21:45–22:05: quality 0.5M31 22:05–22:20: quality 0.4observe M31 20:05–21:15M42M42 18:20–18:55: quality 0.1M42 18:55–19:15: quality 0.4M42 19:15–19:25: quality 0.3M42 19:25–20:20: quality 0.7M42 20:20–22:30: quality 0.6M42 22:30–23:30: quality 0.5M42 23:30–23:55: quality 0.4M42 23:55–00:20: quality 0.3observe M42 22:25–23:40M45M45 18:20–18:55: quality 0.2M45 18:55–19:15: quality 0.5M45 19:15–19:25: quality 0.4M45 19:25–19:40: quality 0.9M45 19:40–21:40: quality 0.8M45 21:40–22:55: quality 0.7M45 22:55–23:40: quality 0.6M45 23:40–23:55: quality 0.5M45 23:55–00:15: quality 0.4M45 00:15–00:20: quality 0.3observe M45 21:15–22:25observe M45 23:40–00:20NGC 7000NGC 7000 18:20–18:50: quality 0.1NGC 7000 05:05–05:20: quality 0.4NGC 7000 05:20–05:40: quality 0.5NGC 7000 05:40–05:50: quality 0.6NGC 7000 05:50–06:10: quality 0.3NGC 7000 06:10–06:20: quality 0.4NGC 7000 06:20–06:55: quality 0.1observe NGC 7000 05:05–06:15V1057 CygV1057 Cyg 18:20–18:50: quality 0.1V1057 Cyg 05:05–05:25: quality 0.4V1057 Cyg 05:25–05:40: quality 0.5V1057 Cyg 05:40–05:50: quality 0.6V1057 Cyg 05:50–06:10: quality 0.3V1057 Cyg 06:10–06:20: quality 0.4V1057 Cyg 06:20–06:55: quality 0.1observe V1057 Cyg 06:15–06:20M33M33 18:20–18:55: quality 0.2M33 18:55–19:15: quality 0.5M33 19:15–19:25: quality 0.4M33 19:25–19:50: quality 0.9M33 19:50–21:05: quality 0.8M33 21:05–21:45: quality 0.7M33 21:45–22:00: quality 0.6M33 22:00–22:15: quality 0.5M33 22:15–22:35: quality 0.4observe M33 18:55–20:05scheduleM33M31M45M42NGC 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
17:45–18:55 — nothing worth pointing at — 1.17
18:55–20:05 M33 1.17 0.69
20:05–21:15 M31 1.17 0.76
21:15–22:25 M45 1.17 0.73
22:25–23:40 M42 1.25 0.51
23:40–00:20 M45 0.67 0.43
00:20–05:05 — nothing worth pointing at — 4.75
05:05–06:15 NGC 7000 1.17 0.43
06:15–06:20 V1057 Cyg 0.08 0.36
06:20–07:25 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 50 unknown 19:25–21:35 (good) 89.7° at 15:40 127.4° 1.17
M42 Great Orion Nebula 50 unknown 19:25–21:35 (good) 42.9° at 20:30 78.3° 1.25
M45 Seven Sisters 81 unknown 19:25–23:30 (good) 72.5° at 18:45 101.9° 1.83
NGC 7000 North America Nebula 9 unknown 05:05–06:20 (marginal) 87.2° at 11:55 125.8° 1.17
V1057 Cyg 9 unknown 05:05–06:20 (marginal) 87.3° at 11:55 125.9° 0.08
M33 Triangulum Pinwheel 57 unknown 19:25–21:55 (good) 79.1° at 16:30 127.0° 1.17
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-11"

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"}.