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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, 09 October 2041 · astronomical night 20:21 → 05:55 (9.57 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:50: quality 0.1M31 19:50–20:25: quality 0.2M31 20:25–20:30: quality 0.5M31 20:30–23:25: quality 0.4M31 23:25–03:25: quality 0.3M31 03:25–06:00: quality 0.4M31 06:00–06:30: quality 0.2M31 06:30–07:00: quality 0.1observe M31 23:20–01:05M42M42 01:55–02:10: quality 0.2M42 02:10–02:40: quality 0.3M42 02:40–03:35: quality 0.4M42 03:35–05:45: quality 0.5M42 05:45–06:00: quality 0.6M42 06:00–06:30: quality 0.3M42 06:30–07:00: quality 0.1observe M42 02:50–04:35M45M45 22:20–22:50: quality 0.2M45 22:50–02:00: quality 0.3M45 02:00–05:00: quality 0.4M45 05:00–06:00: quality 0.5M45 06:00–06:30: quality 0.3M45 06:30–07:00: quality 0.1observe M45 01:05–02:50NGC 7000NGC 7000 19:20–19:50: quality 0.1NGC 7000 19:50–20:25: quality 0.3NGC 7000 20:25–20:35: quality 0.7NGC 7000 20:35–23:05: quality 0.6NGC 7000 23:05–01:45: quality 0.5NGC 7000 01:45–03:20: quality 0.4NGC 7000 03:20–03:50: quality 0.3NGC 7000 03:50–04:00: quality 0.2observe NGC 7000 19:50–21:35V1057 CygV1057 Cyg 19:20–19:50: quality 0.1V1057 Cyg 19:50–20:25: quality 0.3V1057 Cyg 20:25–20:35: quality 0.7V1057 Cyg 20:35–23:05: quality 0.6V1057 Cyg 23:05–01:45: quality 0.5V1057 Cyg 01:45–03:20: quality 0.4V1057 Cyg 03:20–03:50: quality 0.3V1057 Cyg 03:50–04:00: quality 0.2observe V1057 Cyg 21:35–23:20M33M33 19:50–20:15: quality 0.1M33 20:15–20:25: quality 0.2M33 20:25–20:30: quality 0.3M33 20:30–21:45: quality 0.4M33 21:45–04:25: quality 0.3M33 04:25–06:00: quality 0.4M33 06:00–06:30: quality 0.2M33 06:30–07:00: quality 0.1observe M33 04:35–06:00scheduleNGC 7000V1057 CygM31M45M42M3320:0022:0000:0002:0004:0006:00

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
18:45–19:50 — nothing worth pointing at — 1.08
19:50–21:35 NGC 7000 1.75 0.53
21:35–23:20 V1057 Cyg 1.75 0.57
23:20–01:05 M31 1.75 0.33
01:05–02:50 M45 1.75 0.35
02:50–04:35 M42 1.75 0.45
04:35–06:00 M33 1.42 0.37
06:00–07:30 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 43 unknown 20:25–06:00 (marginal) 89.8° at 00:50 35.8° 1.75
M42 Great Orion Nebula 28 unknown 02:25–06:00 (marginal) 42.9° at 05:40 66.3° 1.75
M45 Seven Sisters 37 unknown 23:10–06:00 (marginal) 72.5° at 03:55 40.8° 1.75
NGC 7000 North America Nebula 66 unknown 20:25–21:40 (good) 87.2° at 21:05 67.1° 1.75
V1057 Cyg 66 unknown 20:25–21:40 (good) 87.3° at 21:05 67.0° 1.75
M33 Triangulum Pinwheel 32 unknown 20:25–23:55 (marginal) 79.2° at 01:40 25.0° 1.42
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-10-09"

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"}.