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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 Saturday, 17 October 2043 · astronomical night 20:09 → 06:03 (9.9 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:10–19:40: quality 0.1M31 19:40–20:10: quality 0.2M31 20:10–22:15: quality 0.4M31 22:15–03:05: quality 0.3M31 03:05–06:05: quality 0.4M31 06:05–06:40: quality 0.2observe M31 01:25–03:20M42M42 01:25–01:35: quality 0.2M42 01:35–02:05: quality 0.3M42 02:05–02:40: quality 0.4M42 02:40–04:40: quality 0.5M42 04:40–06:05: quality 0.6M42 06:05–06:40: quality 0.3M42 06:40–07:10: quality 0.1observe M42 03:20–05:15observe M42 06:05–06:40M45M45 21:50–22:20: quality 0.2M45 22:20–01:05: quality 0.3M45 01:05–04:00: quality 0.4M45 04:00–06:05: quality 0.5M45 06:05–06:40: quality 0.3M45 06:40–07:10: quality 0.1observe M45 23:30–01:25NGC 7000NGC 7000 19:10–19:40: quality 0.1NGC 7000 19:40–20:10: quality 0.3NGC 7000 20:10–21:35: quality 0.6NGC 7000 21:35–00:30: quality 0.5NGC 7000 00:30–02:45: quality 0.4NGC 7000 02:45–03:20: quality 0.3NGC 7000 03:20–03:30: quality 0.2observe NGC 7000 19:40–21:35V1057 CygV1057 Cyg 19:10–19:40: quality 0.1V1057 Cyg 19:40–20:10: quality 0.3V1057 Cyg 20:10–21:35: quality 0.6V1057 Cyg 21:35–00:30: quality 0.5V1057 Cyg 00:30–02:45: quality 0.4V1057 Cyg 02:45–03:20: quality 0.3V1057 Cyg 03:20–03:30: quality 0.2observe V1057 Cyg 21:35–23:30M33M33 19:40–19:50: quality 0.1M33 19:50–20:10: quality 0.2M33 20:10–20:30: quality 0.4M33 20:30–03:30: quality 0.3M33 03:30–06:05: quality 0.4M33 06:05–06:40: quality 0.2M33 06:40–06:45: quality 0.1observe M33 05:15–06:05scheduleNGC 7000V1057 CygM45M31M42M3320:0022:0000:0002:0004:0006:00

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
18:35–19:40 — nothing worth pointing at — 1.08
19:40–21:35 NGC 7000 1.92 0.51
21:35–23:30 V1057 Cyg 1.92 0.52
23:30–01:25 M45 1.92 0.34
01:25–03:20 M31 1.92 0.33
03:20–05:15 M42 1.92 0.53
05:15–06:05 M33 0.83 0.41
06:05–06:40 M42 0.58 0.3
06:40–07:40 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 39 unknown 01:10–06:05 (marginal) 89.7° at 00:20 33.6° 1.92
M42 Great Orion Nebula 37 unknown 06:00–06:05 (good) 42.9° at 05:15 70.3° 2.5
M45 Seven Sisters 46 unknown 22:40–06:05 (marginal) 72.6° at 03:25 43.3° 1.92
NGC 7000 North America Nebula 56 unknown 20:10–20:25 (good) 87.2° at 20:35 63.2° 1.92
V1057 Cyg 55 unknown 20:10–20:25 (good) 87.2° at 20:35 63.1° 1.92
M33 Triangulum Pinwheel 36 unknown 02:20–06:05 (marginal) 79.2° at 01:10 24.3° 0.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-10-17"

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"}.